TLV2721IDBVR [TI]
Single, 10-V, 510-kHz operational amplifier | DBV | 5 | -40 to 85;
| 型号： | TLV2721IDBVR |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | Single, 10-V, 510-kHz operational amplifier | DBV | 5 | -40 to 85 放大器 运算放大器 放大器电路 |
| 文件： | 总28页 (文件大小：580K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TLV2721, TLV2721Y
Advanced LinCMOS RAIL-TO-RAIL
VERY LOW-POWER SINGLE OPERATIONAL AMPLIFIERS
SLOS197 – AUGUST1997
DBV PACKAGE
(TOP VIEW)
Output Swing Includes Both Supply Rails
Low Noise . . . 19 nV/√Hz Typ at f = 1 kHz
Low Input Bias Current . . . 1 pA Typ
OUT
1
2
3
5
4
V
/GND
DD–
Fully Specified for Single-Supply 3-V and
5-V Operation
V
DD+
Very Low Power . . . 110 µA Typ
IN+
IN–
Common-Mode Input Voltage Range
Includes Negative Rail
Wide Supply Voltage Range
2.7 V to 10 V
Macromodel Included
description
The TLV2721 is a single low-voltage operational amplifier available in the SOT-23 package. It offers a
compromise between the ac performance and output drive of the TLV2731 and the micropower TLV2711.
It consumes only 150 µA (max) of supply current and is ideal for battery-powered applications. The device
exhibits rail-to-rail output performance for increased dynamic range in single- or split-supply applications. The
TLV2721 is fully characterized at 3 V and 5 V and is optimized for low-voltage applications.
The TLV2721, exhibiting high input impedance and low noise, is excellent for small-signal conditioning for
high-impedance sources, such as piezoelectric transducers. Because of the micropower dissipation levels
combined with 3-V operation, these devices work well in hand-held monitoring and remote-sensing
applications. In addition, the rail-to-rail output feature with single or split supplies makes this family a great
choice when interfacing with analog-to-digital converters (ADCs).
2
With a total area of 5.6mm , the SOT-23 package only requires one third the board space of the standard 8-pin
SOIC package. This ultra-small package allows designers to place single amplifiers very close to the signal
source, minimizing noise pick-up from long PCB traces.
AVAILABLE OPTIONS
CHIP
FORM
(Y)
PACKAGED DEVICES
‡
T
A
V
IO
max AT 25°C
SYMBOL
†
SOT-23 (DBV)
0°C to 70°C
3 mV
3 mV
TLV2721CDBV
TLV2721IDBV
VAKC
VAKI
TLV2721Y
–40°C to 85°C
†
‡
The DBV package available in tape and reel only.
Chip forms are tested at T = 25°C only.
A
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Advanced LinCMOS is a trademark of Texas Instruments Incorporated.
Copyright 1997, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLV2721, TLV2721Y
Advanced LinCMOS RAIL-TO-RAIL
VERY LOW-POWER SINGLE OPERATIONAL AMPLIFIERS
SLOS197 – AUGUST1997
TLV2721Y chip information
This chip, when properly assembled, displays characteristics similar to the TLV2721C. Thermal compression
or ultrasonic bonding may be used on the doped-aluminum bonding pads. This chip may be mounted with
conductive epoxy or a gold-silicon preform.
BONDING PAD ASSIGNMENTS
(5)
V
(1)
DD+
(2)
(3)
(4)
+
IN+
IN–
(1)
OUT
–
(5)
V
DD–
/GND
CHIP THICKNESS: 10 MILS TYPICAL
46
BONDING PADS: 4 × 4 MILS MINIMUM
T max = 150°C
J
(2)
TOLERANCES ARE ±10%.
ALL DIMENSIONS ARE IN MILS.
PIN (2) IS INTERNALLY CONNECTED
TO BACKSIDE OF CHIP.
(4)
(3)
31
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
equivalent schematic
V
DD+
Q3
Q6
Q9
Q12
Q14
Q16
R7
C2
IN+
R6
OUT
C1
IN–
R5
Q1
Q4
Q13
Q15
R2
Q17
D1
Q2
R3
Q5
R4
Q7
Q8
Q10
Q11
R1
V
DD–/GND
†
COMPONENT COUNT
Transistors
Diodes
23
5
Resistors
Capacitors
11
2
†
Includes both amplifiers and all
ESD, bias, and trim circuitry
TLV2721, TLV2721Y
Advanced LinCMOS RAIL-TO-RAIL
VERY LOW-POWER SINGLE OPERATIONAL AMPLIFIERS
SLOS197 – AUGUST 1997
†
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
(see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 V
DD
Differential input voltage, V (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±V
Input voltage range, V (any input, see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to V
ID
DD
DD
I
Input current, I (each input) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±5 mA
I
Output current, I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA
O
Total current into V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA
DD+
DD–
Total current out of V
Duration of short-circuit current (at or below) 25°C (see Note 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . unlimited
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table
Operating free-air temperature range, T : TLV2721C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
A
TLV2721I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to 85°C
Storage temperature range, T
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: DBV package . . . . . . . . . . . . . . . . . . 260°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
stg
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. All voltage values, except differential voltages, are with respect to V
.
DD –
2. Differential voltages are at the noninverting input with respect to the inverting input. Excessive current flows when input is brought
below V – 0.3 V.
DD–
3. The output can be shorted to either supply. Temperature and/or supply voltages must be limited to ensure that the maximum
dissipation rating is not exceeded.
DISSIPATION RATING TABLE
T
≤ 25°C
DERATING FACTOR
T
= 70°C
T = 85°C
A
POWER RATING
A
A
PACKAGE
POWER RATING
ABOVE T = 25°C
POWER RATING
A
DBV
150 mW
1.2 mW/°C
96 mW
78 mW
recommended operating conditions
TLV2721C
TLV2721I
UNIT
MIN
MAX
MIN
MAX
10
–1.3
Supply voltage, V
2.7
10
2.7
V
V
DD
Input voltage range, V
V
V
V
V
–1.3
V
V
V
V
I
DD–
DD+
DD–
DD+
Common-mode input voltage, V
IC
Operating free-air temperature, T
–1.3
–1.3
V
DD–
0
DD+
DD–
–40
DD+
70
85
°C
A
NOTE 1: All voltage values, except differential voltages, are with respect to V
DD –
.
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLV2721, TLV2721Y
Advanced LinCMOS RAIL-TO-RAIL
VERY LOW-POWER SINGLE OPERATIONAL AMPLIFIERS
SLOS197 – AUGUST 1997
electrical characteristics at specified free-air temperature, V
= 3 V (unless otherwise noted)
DD
TLV2721C
TYP MAX
TLV2721I
TYP MAX
†
PARAMETER
TEST CONDITIONS
T
A
UNIT
MIN
MIN
V
IO
Input offset voltage
0.5
3
0.5
3
mV
Temperature
coefficient of input
offset voltage
Full range
α
1
1
µV/°C
VIO
Input offset voltage
long-term drift
(see Note 4)
V
V
= ±1.5 V,
V
R
= 0,
= 50 Ω
S
DD±
= 0,
IC
25°C
0.003
0.5
0.003
0.5
µV/mo
O
25°C
Full range
25°C
I
I
Input offset current
Input bias current
pA
pA
IO
150
150
150
150
1
1
IB
Full range
0
to
2
–0.3
to
2.2
0
to
2
–0.3
to
2.2
25°C
Common-mode input
voltage range
V
ICR
R
= 50 Ω,
|V | ≤5 mV
IO
V
S
0
to
0
to
Full range
1.7
1.7
I
I
= –100 µA
= –400 µA
= 1.5 V,
25°C
25°C
2.97
2.88
2.97
2.88
OH
High-level output
voltage
V
V
V
OH
OH
Full range
25°C
2.6
2.6
V
V
I
I
= 50 µA
15
15
IC
OL
Low-level output
voltage
25°C
150
150
mV
OL
= 1.5 V,
= 500 µA
IC
OL
Full range
25°C
500
500
2
1
3
2
1
3
Large-signal
differential voltage
amplification
‡
= 2 kΩ
R
R
V
V
= 1.5 V,
= 1 V to 2 V
L
L
IC
O
Full range
25°C
A
VD
V/mV
‡
250
250
= 1 MΩ
Differential input
resistance
12
10
12
10
Ω
Ω
r
r
25°C
25°C
25°C
25°C
id
Common-mode input
resistance
12
10
12
10
ic
Common-mode input
capacitance
c
z
f = 10 kHz
f = 10 kHz,
6
6
pF
Ω
ic
o
Closed-loop output
impedance
A
= 10
90
82
90
82
V
25°C
70
65
70
65
Common-mode
rejection ratio
V
IC
V
O
= 0 to 1.7 V,
= 1.5 V,
CMRR
dB
dB
µA
R
= 50 Ω
S
Full range
Supply voltage
rejection ratio
25°C
80
80
95
80
80
95
V
V
= 2.7 V to 8 V,
DD
IC
k
SVR
= V
/2,
No load
DD
Full range
(∆V
/∆V )
DD
IO
25°C
100
150
200
100
150
200
I
Supply current
V
O
= 1.5 V,
No load
DD
Full range
†
‡
Full range for the TLV2721C is 0°C to 70°C. Full range for the TLV2721I is – 40°C to 85°C.
Referenced to 1.5 V
NOTE 4: Typical values are based on the input offset voltage shift observed through 500 hours of operating life test at T = 150°C extrapolated
A
to T = 25°C using the Arrhenius equation and assuming an activation energy of 0.96 eV.
A
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLV2721, TLV2721Y
Advanced LinCMOS RAIL-TO-RAIL
VERY LOW-POWER SINGLE OPERATIONAL AMPLIFIERS
SLOS197 – AUGUST 1997
operating characteristics at specified free-air temperature, V
= 3 V
DD
TLV2721C
TYP
TLV2721I
TYP MAX
†
PARAMETER
TEST CONDITIONS
UNIT
T
A
MIN
MAX MIN
25°C
0.1
0.25
0.1
0.25
‡
Slew rate at unity
gain
V
C
= 1.1 V to 1.9 V,
‡
= 100 pF
R
= 2 kΩ ,
O
L
L
SR
V/µs
Full
range
0.05
0.05
f = 10 Hz
f = 1 kHz
25°C
25°C
120
20
120
20
Equivalent input
noise voltage
V
n
nV/√Hz
mV
Peak-to-peak
equivalent input
noise voltage
f = 0.1 Hz to 1 Hz
f = 0.1 Hz to 10 Hz
25°C
25°C
680
860
680
860
V
N(PP)
Equivalent input
noise current
I
25°C
25°C
0.6
0.6
fA/√Hz
n
V
= 1 V to 2 V,
A
= 1
2.52%
7.01%
2.52%
7.01%
O
V
f = 20 kHz,
R
‡
= 2 kΩ
A
V
= 10
= 1
L
Total harmonic
distortion plus noise
THD+N
V
O
= 1 V to 2 V,
A
V
0.076%
0.147%
0.076%
0.147%
25°C
25°C
25°C
f = 20 kHz,
§
= 2 kΩ
A
V
= 10
R
L
‡
Gain-bandwidth
product
R
= 2 kΩ ,
f = 1 kHz,
C
L
480
30
480
30
kHz
kHz
‡
= 100 pF
L
Maximum
output-swing
bandwidth
V
R
= 1 V,
A
= 1,
= 100 pF
L
O(PP)
V
B
OM
‡
‡
‡
= 2 kΩ ,
C
L
A
= –1,
V
To 0.1%
25°C
25°C
4.5
6.8
4.5
6.8
µs
µs
Step = 1 V to 2 V,
t
s
Settling time
‡
R
C
= 2 kΩ ,
= 100 pF
L
L
To 0.01%
‡
Phase margin at
unity gain
φ
25°C
25°C
53°
53°
m
‡
R
= 2 kΩ ,
C = 100 pF
L
L
Gain margin
12
12
dB
†
‡
§
Full range is –40°C to 85°C.
Referenced to 1.5 V
Referenced to 0 V
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLV2721, TLV2721Y
Advanced LinCMOS RAIL-TO-RAIL
VERY LOW-POWER SINGLE OPERATIONAL AMPLIFIERS
SLOS197 – AUGUST 1997
electrical characteristics at specified free-air temperature, V
= 5 V (unless otherwise noted)
DD
TLV2721C
TYP MAX
TLV2721I
TYP MAX
†
PARAMETER
TEST CONDITIONS
T
A
UNIT
MIN
MIN
V
IO
Input offset voltage
0.5
3
0.5
3
mV
Temperature
coefficient of input
offset voltage
Full range
α
1
1
µV/°C
VIO
Input offset voltage
long-term drift
(see Note 4)
V
V
= ±2.5 V,
V
R
= 0,
= 50 Ω
S
DD±
= 0,
IC
25°C
0.003
0.5
0.003
0.5
µV/mo
O
25°C
Full range
25°C
I
I
Input offset current
Input bias current
pA
pA
IO
150
150
150
150
1
1
IB
Full range
0
to
4
–0.3
to
4.2
0
to
4
–0.3
to
4.2
25°C
Common-mode input
voltage range
V
ICR
R
= 50 Ω,
|V | ≤5 mV
IO
V
S
0
to
0
to
Full range
3.5
3.5
I
I
= –500 µA
= –1 mA
= 2.5 V,
4.75
4.6
4.88
4.76
12
4.75
4.6
4.88
4.76
12
High-level output
voltage
OH
V
V
25°C
V
OH
OH
V
I
I
= 50 µA
25°C
25°C
IC
IC
OL
Low-level output
voltage
120
120
mV
OL
V
= 2.5 V,
= 500 µA
OL
Full range
25°C
500
500
3
1
5
3
1
5
Large-signal
differential voltage
amplification
‡
= 2 kΩ
R
R
V
V
= 2.5 V,
= 1 V to 4 V
L
L
IC
O
Full range
25°C
A
VD
V/mV
‡
800
800
= 1 MΩ
Differential input
resistance
12
10
12
10
Ω
Ω
r
r
25°C
25°C
25°C
25°C
id
Common-mode
input resistance
12
10
12
10
ic
Common-mode
input capacitance
c
z
f = 10 kHz
f = 10 kHz,
6
6
pF
Ω
ic
o
Closed-loop
output impedance
A
= 10
70
85
70
85
V
25°C
70
65
70
65
Common-mode
rejection ratio
V
R
= 0 to 2.7 V,
= 50 Ω
V
O
= 1.5 V,
IC
S
CMRR
dB
dB
µA
Full range
Supply voltage
rejection ratio
25°C
80
80
95
80
80
95
V
V
= 4.4 V to 8 V,
DD
IC
k
SVR
= V
/2,
No load
DD
Full range
(∆V
/∆V )
DD
IO
25°C
110
150
200
110
150
200
I
Supply current
V
O
= 2.5 V,
No load
DD
Full range
†
‡
Full range for the TLV2721C is 0°C to 70°C. Full range for the TLV2721I is – 40°C to 85°C.
Referenced to 2.5 V
NOTE 5: Typical values are based on the input offset voltage shift observed through 500 hours of operating life test at T = 150°C extrapolated
A
to T = 25°C using the Arrhenius equation and assuming an activation energy of 0.96 eV.
A
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLV2721, TLV2721Y
Advanced LinCMOS RAIL-TO-RAIL
VERY LOW-POWER SINGLE OPERATIONAL AMPLIFIERS
SLOS197 – AUGUST 1997
operating characteristics at specified free-air temperature, V
= 5 V
DD
TLV2721C
TYP
TLV2721I
TYP MAX
†
PARAMETER
TEST CONDITIONS
UNIT
T
A
MIN
MAX MIN
25°C
0.1
0.25
0.1
0.25
‡
Slew rate at unity
gain
V
C
= 1.5 V to 3.5 V,
‡
= 100 pF
R
= 2 kΩ ,
O
L
L
SR
V/µs
Full
range
0.05
0.05
f = 10 Hz
f = 1 kHz
25°C
25°C
90
19
90
19
Equivalent input
noise voltage
V
n
nV/√Hz
mV
Peak-to-peak
equivalent input
noise voltage
f = 0.1 Hz to 1 Hz
f = 0.1 Hz to 10 Hz
25°C
25°C
800
960
800
960
V
N(PP)
Equivalent input
noise current
I
25°C
25°C
0.6
0.6
fA/√Hz
n
V
= 1.5 V to 3.5 V,
A
= 1
2.45%
5.54%
2.45%
5.54%
O
V
f = 20 kHz,
R
‡
= 2 kΩ
A
V
= 10
= 1
L
Total harmonic
distortion plus noise
THD+N
V
O
= 1.5 V to 3.5 V,
A
V
0.142%
0.257%
0.142%
0.257%
25°C
25°C
f = 20 kHz,
§
= 2 kΩ
A
V
= 10
R
L
‡
Gain-bandwidth
product
f = 1 kHz,
C
R
= 2 kΩ ,
L
510
510
kHz
kHz
‡
= 100 pF
L
Maximum output-
swing bandwidth
V
R
= 1 V,
A
= 1,
= 100 pF
L
O(PP)
V
B
25°C
25°C
25°C
40
6.8
9.2
40
6.8
9.2
OM
‡
‡
‡
= 2 kΩ ,
C
L
A
= –1,
V
To 0.1%
Step = 1.5 V to 3.5 V,
t
s
Settling time
µs
‡
R
C
= 2 kΩ ,
= 100 pF
L
L
To 0.01%
‡
Phase margin at
unity gain
φ
25°C
25°C
53°
53°
m
‡
R
= 2 kΩ ,
C = 100 pF
L
L
Gain margin
12
12
dB
†
‡
§
Full range is –40°C to 85°C.
Referenced to 2.5 V
Referenced to 0 V
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLV2721, TLV2721Y
Advanced LinCMOS RAIL-TO-RAIL
VERY LOW-POWER SINGLE OPERATIONAL AMPLIFIERS
SLOS197 – AUGUST 1997
electrical characteristics at V
= 3 V, T = 25°C (unless otherwise noted)
DD
A
TLV2721Y
PARAMETER
TEST CONDITIONS
UNIT
MIN
TYP
620
0.5
1
MAX
V
IO
Input offset voltage
Input offset current
Input bias current
µV
pA
pA
V
R
± = ±1.5 V,
= 50 Ω
V
IC
= 0,
V = 0,
O
DD
S
I
IO
IB
I
–0.3
to
2.2
V
ICR
Common-mode input voltage range
| V | ≤5 mV,
IO
R
= 50 Ω
V
S
V
V
High-level output voltage
Low-level output voltage
I
= –100 µA
= 1.5 V,
2.97
15
V
OH
OH
V
I
I
= 50 µA
IC
IC
OL
mV
OL
V
= 1.5 V,
= 500 µA
150
3
OL
†
R
R
= 2 kΩ
Large-signal differential
voltage amplification
L
L
A
VD
V
= 1 V to 2 V
V/mV
O
†
250
= 1 MΩ
12
r
r
Differential input resistance
10
10
Ω
Ω
id
12
Common-mode input resistance
Common-mode input capacitance
Closed-loop output impedance
Common-mode rejection ratio
ic
c
z
f = 10 kHz
f = 10 kHz,
6
90
82
95
pF
Ω
ic
o
A
= 10
V
CMRR
V
V
V
= 0 to 1.7 V,
V
O
= 0,
= 0,
R = 50 Ω
S
dB
dB
µA
IC
k
I
Supply voltage rejection ratio (∆V
/∆V
IO
)
= 2.7 V to 8 V,
V
IC
No load
SVR
DD
DD
Supply current
= 0,
No load
100
DD
O
†
Referenced to 1.5 V
electrical characteristics at V
= 5 V, T = 25°C (unless otherwise noted)
DD
A
TLV2721Y
PARAMETER
TEST CONDITIONS
UNIT
MIN
TYP
610
0.5
1
MAX
V
IO
Input offset voltage
Input offset current
Input bias current
µV
pA
pA
V
R
± = ±1.5 V,
= 50 Ω
V
IC
= 0,
V = 0,
O
DD
S
I
I
IO
IB
–0.3
to
4.2
V
ICR
Common-mode input voltage range
| V | ≤5 mV,
IO
R
= 50 Ω
V
S
V
V
High-level output voltage
Low-level output voltage
I
= –500 µA
= 2.5 V,
4.88
12
V
OH
OH
V
I
I
= 50 µA
IC
IC
OL
mV
OL
V
= 2.5 V,
= 500 µA
120
5
OL
†
R
R
= 2 kΩ
Large-signal differential
voltage amplification
L
L
A
VD
V
= 1 V to 4 V
V/mV
O
†
800
= 1 MΩ
12
r
r
Differential input resistance
10
10
Ω
Ω
id
12
Common-mode input resistance
Common-mode input capacitance
Closed-loop output impedance
Common-mode rejection ratio
ic
c
z
f = 10 kHz
f = 10 kHz,
6
70
85
95
pF
Ω
ic
o
A
= 10
V
CMRR
V
V
V
= 0 to 1.7 V,
V
O
= 0,
= 0,
R = 50 Ω
S
dB
dB
µA
IC
k
I
Supply voltage rejection ratio (∆V
/∆V
IO
)
= 2.7 V to 8 V,
V
IC
No load
SVR
DD
DD
Supply current
= 0,
No load
110
DD
O
†
Referenced to 2.5 V
9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLV2721, TLV2721Y
Advanced LinCMOS RAIL-TO-RAIL
VERY LOW-POWER SINGLE OPERATIONAL AMPLIFIERS
SLOS197 – AUGUST 1997
TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
Distribution
vs Common-mode input voltage
1, 2
3, 4
V
IO
Input offset voltage
α
Input offset voltage temperature coefficient
Input bias and input offset currents
Distribution
5, 6
7
VIO
I
/I
vs Free-air temperature
IB IO
vs Supply voltage
vs Free-air temperature
8
9
V
I
Input voltage
V
V
V
High-level output voltage
vs High-level output current
vs Low-level output current
vs Frequency
10, 13
11, 12, 14
15
OH
Low-level output voltage
OL
Maximum peak-to-peak output voltage
O(PP)
vs Supply voltage
vs Free-air temperature
16
17
I
Short-circuit output current
OS
V
Output voltage
vs Differential input voltage
vs Load resistance
18, 19
20
O
A
VD
Differential voltage amplification
vs Frequency
vs Free-air temperature
21, 22
23, 24
A
Large signal differential voltage amplification
Output impedance
VD
o
z
vs Frequency
25, 26
vs Frequency
vs Free-air temperature
27
28
CMRR
Common-mode rejection ratio
vs Frequency
vs Free-air temperature
29, 30
31
k
Supply-voltage rejection ratio
Supply current
SVR
I
vs Supply voltage
32
DD
vs Load capacitance
vs Free-air temperature
33
34
SR
Slew rate
V
V
V
V
V
Inverting large-signal pulse response
Voltage-follower large-signal pulse response
Inverting small-signal pulse response
Voltage-follower small-signal pulse response
Equivalent input noise voltage
vs Time
35, 36
37, 38
39, 40
41, 42
43, 44
45
O
O
O
O
n
vs Time
vs Time
vs Time
vs Frequency
Over a 10-second period
vs Frequency
Input noise voltage (referred to input)
Total harmonic distortion plus noise
THD + N
46
vs Free-air temperature
vs Supply voltage
47
48
Gain-bandwidth product
Phase margin
vs Frequency
vs Load capacitance
21, 22
51, 52
φ
m
Gain margin
vs Load capacitance
vs Load capacitance
49, 50
53, 54
B
1
Unity-gain bandwidth
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLV2721, TLV2721Y
Advanced LinCMOS RAIL-TO-RAIL
VERY LOW-POWER SINGLE OPERATIONAL AMPLIFIERS
SLOS197 – AUGUST 1997
TYPICAL CHARACTERISTICS
DISTRIBUTION OF TLV2721
INPUT OFFSET VOLTAGE
DISTRIBUTION OF TLV2721
INPUT OFFSET VOLTAGE
25
20
15
20
18
16
545 Amplifiers
From 1 Wafer Lot
= ±1.5 V
545 Amplifiers From 1 Wafer Lot
V = ±2.5 V
DD
T = 25°C
V
A
DD
= 25°C
T
A
14
12
10
8
10
6
4
5
0
2
0
–1.5 –1.1 –0.7 –0.3
0.1
0.5
0.9
1.3
–1.5 –1.1 –0.7 –0.3 0.1
0.5
0.9
1.3
V
IO
– Input Offset Voltage – mV
V
IO
– Input Offset Voltage – mV
Figure 1
Figure 2
†
INPUT OFFSET VOLTAGE
vs
†
INPUT OFFSET VOLTAGE
vs
COMMON-MODE INPUT VOLTAGE
COMMON-MODE INPUT VOLTAGE
1
1
V
= 3 V
= 50 Ω
= 25°C
DD
V
= 5 V
= 50 Ω
= 25°C
DD
0.8
R
S
0.8
R
S
T
A
T
A
0.6
0.4
0.2
0.6
0.4
0.2
0
–0.2
–0.4
0
–0.2
–0.4
–0.6
–0.8
–0.6
–0.8
–1
–1
–1
0
1
2
3
–1
0
1
2
3
4
5
V
IC
– Common-Mode Input Voltage – V
V
IC
– Common-Mode Input Voltage – V
Figure 3
Figure 4
†
For all curves where V
DD
= 5 V, all loads are referenced to 2.5 V. For all curves where V
DD
= 3 V, all loads are referenced to 1.5 V.
11
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLV2721, TLV2721Y
Advanced LinCMOS RAIL-TO-RAIL
VERY LOW-POWER SINGLE OPERATIONAL AMPLIFIERS
SLOS197 – AUGUST 1997
TYPICAL CHARACTERISTICS
DISTRIBUTION OF TLV2721 INPUT OFFSET
VOLTAGE TEMPERATURE COEFFICIENT
DISTRIBUTION OF TLV2721 INPUT OFFSET
VOLTAGE TEMPERATURE COEFFICIENT
†
†
25
20
15
10
5
25
20
15
10
5
32 Amplifiers From 1 Wafer Lot
32 Amplifiers From 1 Wafer Lot
V
= ±2.5 V
DD
P Package
= 25°C to 125°C
V
= ±1.5 V
DD
P Package
= 25°C to 125°C
T
A
T
A
0
0
–4 –3
–2
–1
0
1
2
3
4
–4 –3
–2
–1
0
1
2
3
4
α
– Input Offset Voltage
α
VIO
– Input Offset Voltage
Temperature Coefficient – µV/°C
VIO
Temperature Coefficient – µV/°C
Figure 5
Figure 6
INPUT BIAS AND INPUT OFFSET CURRENTS
INPUT VOLTAGE
vs
vs
FREE-AIR TEMPERATURE
SUPPLY VOLTAGE
5
100
90
80
70
60
50
40
30
R
T
= 50 Ω
= 25°C
S
A
V
V
V
= ±2.5 V
= 0
= 0
= 50 Ω
DD±
IC
O
4
3
R
S
2
1
0
|V | ≤5 mV
IO
–1
–2
–3
–4
I
IB
20
10
0
I
IO
–5
1
1.5
2
2.5
3
3.5
4
25
45
65
85
105
125
T
A
– Free-Air Temperature – °C
|V | – Supply Voltage – V
DD±
Figure 7
Figure 8
†
Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.
12
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLV2721, TLV2721Y
Advanced LinCMOS RAIL-TO-RAIL
VERY LOW-POWER SINGLE OPERATIONAL AMPLIFIERS
SLOS197 – AUGUST 1997
TYPICAL CHARACTERISTICS
†‡
INPUT VOLTAGE
vs
†‡
HIGH-LEVEL OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
HIGH-LEVEL OUTPUT CURRENT
3
5
4
3
2
1
V
= 3 V
DD
V
DD
= 5 V
2.5
T
A
= –40°C
2
1.5
1
T
A
= 25°C
|V | ≤5 mV
IO
T
A
= 85°C
T
= 125°C
A
0
0.5
0
–1
–55 –35 –15
5
25
45
65 85 105 125
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
T
A
– Free-Air Temperature – °C
|I | – High-Level Output Current – mA
OH
Figure 9
Figure 10
‡
LOW-LEVEL OUTPUT VOLTAGE
vs
†‡
LOW-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT CURRENT
LOW-LEVEL OUTPUT CURRENT
1.2
1
1.4
1.2
1
V
T
= 3 V
V
= 3 V
DD
= 25°C
DD
= 1.5 V
V
IC
A
T
= 125°C
A
V
IC
= 0
0.8
0.6
0.4
0.2
0
V
= 1.5 V
IC
T
A
= 85°C
0.8
0.6
V
IC
= 0.75 V
T
A
= 25°C
0.4
T
A
= – 40°C
0.2
0
0
1
2
3
4
5
0
1
2
3
4
5
I
– Low-Level Output Current – mA
I
– Low-Level Output Current – mA
OL
OL
Figure 11
Figure 12
†
‡
Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.
For all curves where V = 5 V, all loads are referenced to 2.5 V. For all curves where V = 3 V, all loads are referenced to 1.5 V.
DD DD
13
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLV2721, TLV2721Y
Advanced LinCMOS RAIL-TO-RAIL
VERY LOW-POWER SINGLE OPERATIONAL AMPLIFIERS
SLOS197 – AUGUST 1997
TYPICAL CHARACTERISTICS
†‡
†‡
LOW-LEVEL OUTPUT VOLTAGE
vs
HIGH-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT CURRENT
HIGH-LEVEL OUTPUT CURRENT
1.4
1.2
5
4
3
V
V
= 5 V
V
V
= 5 V
DD
= 2.5 V
DD
IC
IC = 2.5 V
T
A
= 125°C
T
= –40°C
A
1
T
A
= 25°C
T
= 85°C
A
0.8
T
A
= 85°C
0.6
0.4
0.2
0
2
T
= 125°C
T
= 25°C
A
A
T
A
= –40°C
1
0
0
1
2
3
4
5
6
0
1
2
3
4
5
6
7
8
I
– Low-Level Output Current – mA
OL
|I | – High-Level Output Current – mA
OH
Figure 13
Figure 14
‡
SHORT-CIRCUIT OUTPUT CURRENT
MAXIMUM PEAK-TO-PEAK OUTPUT VOLTAGE
vs
vs
SUPPLY VOLTAGE
FREQUENCY
20
16
12
5
V
= V /2
DD
O
T
= 25°C
A
V
DD
= 5 V
V
= V /2
IC
DD
4
3
V
ID
= –100 mV
8
4
0
V
DD
= 3 V
2
1
0
V
= 100 mV
ID
–4
–8
R
T
A
= 2 kΩ
= 25°C
L
2
3
4
5
6
7
8
2
3
4
5
10
10
10
10
V
– Supply Voltage – V
DD
f – Frequency – Hz
Figure 15
Figure 16
†
‡
Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.
For all curves where V
= 5 V, all loads are referenced to 2.5 V. For all curves where V
= 3 V, all loads are referenced to 1.5 V.
DD
DD
14
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLV2721, TLV2721Y
Advanced LinCMOS RAIL-TO-RAIL
VERY LOW-POWER SINGLE OPERATIONAL AMPLIFIERS
SLOS197 – AUGUST 1997
TYPICAL CHARACTERISTICS
†‡
‡
SHORT-CIRCUIT OUTPUT CURRENT
OUTPUT VOLTAGE
vs
vs
DIFFERENTIAL INPUT VOLTAGE
FREE-AIR TEMPERATURE
3
20
16
V
= 3 V
V
V
V
= 5 V
= 2.5 V
= 2.5 V
DD
R = 2 kΩ
DD
IC
O
I
2.5
V
= 1.5 V
IC
= 25°C
T
A
12
8
2
1.5
1
V
ID
= –100 mV
4
0
V
ID
= 100 mV
0.5
0
–4
–8
–5 –4 –3 –2 –1
0
1
2
3
4
5
–75 –50 –25
0
25
50
75
100 125
T
A
– Free-Air Temperature – °C
V
ID
– Differential Input Voltage – V
Figure 17
Figure 18
‡
‡
OUTPUT VOLTAGE
DIFFERENTIAL VOLTAGE AMPLIFICATION
vs
vs
DIFFERENTIAL INPUT VOLTAGE
LOAD RESISTANCE
5
4
3
2
1
1
10
10
10
V
T
= 2 V
V
V
R
= 5 V
O(PP)
DD
= 25°C
= 2.5 V
= 2 kΩ
= 25°C
A
IC
L
V
DD
= 5 V
T
A
3
V
DD
= 3 V
2
1
0
1
10
2
3
10
–5 –4 –3 –2 –1
0
1
2
3
4
5
1
10
V
ID
– Differential Input Voltage – V
R
L
– Load Resistance – kΩ
Figure 19
Figure 20
†
‡
Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.
For all curves where V = 5 V, all loads are referenced to 2.5 V. For all curves where V = 3 V, all loads are referenced to 1.5 V.
DD DD
15
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLV2721, TLV2721Y
Advanced LinCMOS RAIL-TO-RAIL
VERY LOW-POWER SINGLE OPERATIONAL AMPLIFIERS
SLOS197 – AUGUST 1997
TYPICAL CHARACTERISTICS
†
LARGE-SIGNAL DIFFERENTIAL VOLTAGE
AMPLIFICATION AND PHASE MARGIN
vs
FREQUENCY
80
180°
135°
V
R
= 5 V
= 2 kΩ
DD
L
L
C = 100 pF
T
A
60
40
= 25°C
90°
45°
Phase Margin
20
0
Gain
0°
–45°
–90°
–20
–40
4
10
5
10
6
10
7
10
f – Frequency – Hz
Figure 21
LARGE-SIGNAL DIFFERENTIAL VOLTAGE
†
AMPLIFICATION AND PHASE MARGIN
vs
FREQUENCY
180°
135°
80
60
V
R
= 3 V
= 2 kΩ
DD
L
L
C = 100 pF
T
A
= 25°C
90°
45°
40
Phase Margin
20
0
Gain
0°
–45°
–90°
–20
–40
4
10
5
10
6
10
7
10
f – Frequency – Hz
Figure 22
†
For all curves where V
DD
= 5 V, all loads are referenced to 2.5 V. For all curves where V
= 3 V, all loads are referenced to 1.5 V.
DD
16
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLV2721, TLV2721Y
Advanced LinCMOS RAIL-TO-RAIL
VERY LOW-POWER SINGLE OPERATIONAL AMPLIFIERS
SLOS197 – AUGUST 1997
TYPICAL CHARACTERISTICS
LARGE-SIGNAL DIFFERENTIAL
VOLTAGE AMPLIFICATION
vs
LARGE-SIGNAL DIFFERENTIAL
VOLTAGE AMPLIFICATION
vs
†‡
†‡
FREE-AIR TEMPERATURE
FREE-AIR TEMPERATURE
4
3
3
2
10
10
10
10
V
V
V
= 5 V
= 2.5 V
= 1 V to 4 V
V
V
V
= 3 V
= 1.5 V
= 0.5 V to 2.5 V
DD
IC
O
DD
IC
O
R
= 1 MΩ
L
R
= 1 MΩ
L
2
1
10
10
1
10
R
0
= 2 kΩ
L
R
= 2 kΩ
L
1
1
–75 –50 –25
0
25
50
75
100 125
–75 –50 –25
25
50
75
100 125
T
A
– Free-Air Temperature – °C
T
A
– Free-Air Temperature – °C
Figure 23
Figure 24
‡
OUTPUT IMPEDANCE
‡
OUTPUT IMPEDANCE
vs
vs
FREQUENCY
FREQUENCY
1000
100
10
1000
100
10
V
T
A
= 3 V
= 25°C
DD
V
T
A
= 5 V
= 25°C
DD
A
= 100
V
A
= 100
V
A
= 10
= 1
V
A
= 10
= 1
V
A
1
V
A
V
1
0.1
10
1
10
2
3
4
5
10
10
10
10
1
2
3
4
5
10
10
10
f– Frequency – Hz
10
f– Frequency – Hz
Figure 25
Figure 26
†
‡
Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.
For all curves where V = 5 V, all loads are referenced to 2.5 V. For all curves where V = 3 V, all loads are referenced to 1.5 V.
DD DD
17
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLV2721, TLV2721Y
Advanced LinCMOS RAIL-TO-RAIL
VERY LOW-POWER SINGLE OPERATIONAL AMPLIFIERS
SLOS197 – AUGUST 1997
TYPICAL CHARACTERISTICS
†‡
†
COMMON-MODE REJECTION RATIO
COMMON-MODE REJECTION RATIO
vs
vs
FREE-AIR TEMPERATURE
FREQUENCY
100
80
88
86
T
A
= 25°C
V
V
= 5 V
= 2.5 V
DD
IC
V = 5 V
DD
V
V
= 3 V
= 1.5 V
DD
IC
84
60
40
20
0
V
DD
= 3 V
82
80
78
4
5
6
10
1
2
3
10
10
10
10
10
–75 –50 –25
0
25
50
75
100 125
T
A
– Free-Air Temperature – °C
f – Frequency – Hz
Figure 27
Figure 28
†
†
SUPPLY-VOLTAGE REJECTION RATIO
SUPPLY-VOLTAGE REJECTION RATIO
vs
vs
FREQUENCY
FREQUENCY
100
80
100
80
60
40
20
V
T
= 3 V
= 25°C
V
T
= 5 V
= 25°C
DD
A
DD
A
k
SVR+
k
SVR+
60
k
SVR–
k
SVR–
40
20
0
0
–20
–20
6
1
2
3
4
5
6
10
1
2
3
4
5
10
10
10
10
10
10
10
10
10
10
10
f – Frequency – Hz
f – Frequency – Hz
Figure 29
Figure 30
†
‡
For all curves where V
DD
= 5 V, all loads are referenced to 2.5 V. For all curves where V
Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.
= 3 V, all loads are referenced to 1.5 V.
DD
18
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLV2721, TLV2721Y
Advanced LinCMOS RAIL-TO-RAIL
VERY LOW-POWER SINGLE OPERATIONAL AMPLIFIERS
SLOS197 – AUGUST 1997
TYPICAL CHARACTERISTICS
†
SUPPLY CURRENT
vs
†
SUPPLY-VOLTAGE REJECTION RATIO
vs
SUPPLY VOLTAGE
FREE-AIR TEMPERATURE
200
175
150
125
100
V
= 0
V
V
= 2.7 V to 8 V
O
DD
= V = V /2
DD
No Load
IC
O
98
96
T
A
= –40°C
100
75
T
A
= 85°C
T
= 25°C
A
94
92
90
50
25
0
0
2
4
6
8
10
–75 –50 –25
0
25
50
75
100 125
V
DD
– Supply Voltage – V
T
A
– Free-Air Temperature – °C
Figure 31
Figure 32
‡
†‡
SLEW RATE
SLEW RATE
vs
vs
LOAD CAPACITANCE
FREE-AIR TEMPERATURE
0.5
0.4
0.5
0.4
0.3
0.2
V
= 5 V
V
= 5 V
DD
= –1
DD
A
R
C
A
= 2 kΩ
= 100 pF
= 1
V
A
L
L
V
T
= 25°C
SR–
0.3
0.2
SR–
SR+
SR+
0.1
0
0.1
0
1
2
10
3
10
4
10
5
10
–75 –50 –25
0
25
50
75 100 125
10
C
– Load Capacitance – pF
T
A
– Free-Air Temperature – °C
L
Figure 33
Figure 34
†
‡
Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.
For all curves where V = 5 V, all loads are referenced to 2.5 V. For all curves where V = 3 V, all loads are referenced to 1.5 V.
DD DD
19
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TYPICAL CHARACTERISTICS
INVERTING LARGE-SIGNAL PULSE
INVERTING LARGE-SIGNAL PULSE
†
†
RESPONSE
RESPONSE
5
4
3
2.5
2
V
R
C
= 5 V
= 2 kΩ
= 100 pF
= –1
DD
L
L
V
= 3 V
= 2 kΩ
= 100 pF
= –1
DD
R
C
A
L
L
V
A
V
A
T
= 25°C
T
A
= 25°C
3
2
1.5
1
1
0
0.5
0
0
5
10 15 20 25 30 35 40 45 50
0
5
10 15 20 25 30 35 40 45 50
t – Time – µs
t – Time – µs
Figure 35
Figure 36
VOLTAGE-FOLLOWER LARGE-SIGNAL
VOLTAGE-FOLLOWER LARGE-SIGNAL
†
†
PULSE RESPONSE
PULSE RESPONSE
5
4
5
4
3
2
V
= 5 V
= 100 pF
= 1
V
= 5 V
= 2 kΩ
= 100 pF
= 1
= 25°C
DD
L
DD
C
A
R
C
A
L
L
V
V
A
R
= 100 kΩ
T
= 25°C
L
Tied to 2.5 V
T
A
3
2
R
= 2 kΩ
R = 2 kΩ
L
L
1
0
1
0
Tied to 2.5 V
Tied to 0 V
0
5
10 15 20 25 30 35 40 45 50
0
5
10 15 20 25 30 35 40 45 50
t – Time – µs
t – Time – µs
Figure 37
Figure 38
†
For all curves where V
DD
= 5 V, all loads are referenced to 2.5 V. For all curves where V
= 3 V, all loads are referenced to 1.5 V.
DD
20
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SLOS197 – AUGUST 1997
TYPICAL CHARACTERISTICS
INVERTING SMALL-SIGNAL
INVERTING SMALL-SIGNAL
†
†
PULSE RESPONSE
PULSE RESPONSE
0.82
0.8
2.58
2.56
V
R
C
= 3 V
= 2 kΩ
= 100 pF
= –1
= 25°C
DD
L
L
V
R
C
= 5 V
= 2 kΩ
= 100 pF
= –1
= 25°C
DD
L
L
A
V
A
A
V
A
T
T
2.54
2.52
2.5
0.78
0.76
0.74
2.48
0.72
0.7
2.46
2.44
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
t – Time – µs
t – Time – µs
Figure 39
Figure 40
VOLTAGE-FOLLOWER SMALL-SIGNAL
VOLTAGE-FOLLOWER SMALL-SIGNAL
†
PULSE RESPONSE
†
PULSE RESPONSE
0.82
0.8
2.58
2.56
V
R
C
= 3 V
= 2 kΩ
= 100 pF
= 1
= 25°C
DD
L
L
V
R
C
= 5 V
= 2 kΩ
= 100 pF
= 1
= 25°C
DD
L
L
A
V
A
A
V
A
T
T
2.54
2.52
2.5
0.78
0.76
0.74
2.48
0.72
0.7
2.46
2.44
0
1
2
3
4
5
6
7
8
9
10
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
t – Time – µs
t – Time – µs
Figure 41
Figure 42
†
For all curves where V
DD
= 5 V, all loads are referenced to 2.5 V. For all curves where V = 3 V, all loads are referenced to 1.5 V.
DD
21
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TYPICAL CHARACTERISTICS
†
†
EQUIVALENT INPUT NOISE VOLTAGE
EQUIVALENT INPUT NOISE VOLTAGE
vs
vs
FREQUENCY
FREQUENCY
120
100
120
100
80
V
R
T
A
= 5 V
= 20 Ω
= 25°C
DD
S
V
R
T
A
= 3 V
= 20 Ω
= 25°C
DD
S
80
60
40
60
40
20
0
20
0
1
10
2
3
4
1
2
3
4
10
10
10
10
10
10
10
f – Frequency – Hz
f – Frequency – Hz
Figure 43
Figure 44
†
TOTAL HARMONIC DISTORTION PLUS NOISE
INPUT NOISE VOLTAGE OVER
vs
†
A 10-SECOND PERIOD
FREQUENCY
10
1000
V
T
= 5 V
= 25°C
V
= 5 V
DD
A
DD
f = 0.1 Hz to 10 Hz
750
500
250
0
T
A
= 25°C
A
V
= 10
R
R
= 2 kΩ Tied to 2.5 V
= 2 kΩ Tied to 0 V
L
L
A
V
= 1
1
–250
–500
0.1
A
V
= 10
–750
A
V
= 1
0.01
–1000
1
2
3
4
5
10
10
10
10
10
0
2
4
6
8
10
f – Frequency – Hz
t – Time – s
Figure 45
Figure 46
†
For all curves where V
DD
= 5 V, all loads are referenced to 2.5 V. For all curves where V
= 3 V, all loads are referenced to 1.5 V.
DD
22
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SLOS197 – AUGUST 1997
TYPICAL CHARACTERISTICS
†‡
GAIN-BANDWIDTH PRODUCT
vs
GAIN-BANDWIDTH PRODUCT
vs
FREE-AIR TEMPERATURE
SUPPLY VOLTAGE
800
700
600
500
400
300
200
600
575
550
525
V
= 5 V
DD
R
C
T
A
= 2k
= 100 pF
= 25°C
L
L
f = 10 kHz
R
C
= 2 kHz
= 100 pF
L
L
500
475
450
425
400
–75 –50 –25
0
25
50
75 100 125
– Free-Air Temperature – °C
0
1
2
V
3
4
5
6
7
8
T
A
– Supply Voltage – V
DD
Figure 47
Figure 48
GAIN MARGIN
vs
LOAD CAPACITANCE
GAIN MARGIN
vs
LOAD CAPACITANCE
20
15
10
20
15
10
R
= 1 kΩ
null
R
= 1 kΩ
null
R
= 500 Ω
null
R
= 100 Ω
R
null
500 Ω
=
null
R
= 0
R
= 0
null
null
R
= 200 Ω
null
5
0
5
0
T
R
= 25°C
= 2 kΩ
T
R
= 25°C
= ∞
A
L
A
L
1
2
3
4
10
1
10
2
3
4
10
10
10
10
10
10
C
– Load Capacitance – pF
L
C
– Load Capacitance – pF
L
Figure 49
Figure 50
†
‡
Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.
For all curves where V = 5 V, all loads are referenced to 2.5 V. For all curves where V = 3 V, all loads are referenced to 1.5 V.
DD DD
23
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TYPICAL CHARACTERISTICS
PHASE MARGIN
vs
LOAD CAPACITANCE
PHASE MARGIN
vs
LOAD CAPACITANCE
75°
60°
75°
60°
T
R
= 25°C
= ∞
A
L
T
R
= 25°C
= 2 kΩ
A
L
R
= 1 kΩ
null
R
= 1 kΩ
R
= 500 Ω
null
null
45°
30°
45°
30°
R
= 500 Ω
null
R
= 0
null
R
= 0
null
R
= 200 Ω
null
15°
0°
15°
0°
R
= 100 Ω
null
4
1
2
3
4
5
10
1
2
3
5
10
10
10
10
10
10
10
10
10
C
L
– Load Capacitance – pF
C
– Load Capacitance – pF
L
Figure 51
Figure 52
UNITY-GAIN BANDWIDTH
vs
LOAD CAPACITANCE
UNITY-GAIN BANDWIDTH
vs
LOAD CAPACITANCE
600
600
500
T
R
= 25°C
= ∞
A
L
T
R
= 25°C
= 2 kΩ
A
L
500
400
300
400
300
200
200
100
0
100
0
1
10
2
3
4
5
10
10
C
10
10
1
2
3
4
5
10
10
10
10
10
– Load Capacitance – pF
L
C
– Load Capacitance – pF
L
Figure 53
Figure 54
24
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APPLICATION INFORMATION
driving large capacitive loads
The TLV2721 is designed to drive larger capacitive loads than most CMOS operational amplifiers. Figure 50
through Figure 55 illustrate its ability to drive loads greater than 100 pF while maintaining good gain and phase
margins (R
= 0).
null
A small series resistor (R ) at the output of the device (Figure 55) improves the gain and phase margins when
null
driving large capacitive loads. Figure 50 through Figure 53 show the effects of adding series resistances of
100 Ω, 200 Ω, 500 Ω, and 1 kΩ. The addition of this series resistor has two effects: the first effect is that it adds
a zero to the transfer function and the second effect is that it reduces the frequency of the pole associated with
the output load in the transfer function.
The zero introduced to the transfer function is equal to the series resistance times the load capacitance. To
calculate the approximate improvement in phase margin, equation 1 can be used.
–1
(1)
∆φ
tan
2 × π × UGBW × R
× C
m1
null
L
where :
∆φ
improvement in phase margin
m1
UGBW
unity-gain bandwidth frequency
output series resistance
R
null
C
load capacitance
L
The unity-gain bandwidth (UGBW) frequency decreases as the capacitive load increases (Figure 54 and Figure
55). To use equation 1, UGBW must be approximated from Figure 54 and Figure 55.
V
DD+
R
null
V
I
–
+
C
L
R
L
V
/GND
DD–
Figure 55. Series-Resistance Circuit
The TLV2721 is designed to provide better sinking and sourcing output currents than earlier CMOS rail-to-rail
output devices. This device is specified to sink 500 µA and source 1 mA at V = 5 V at a maximum quiescent
DD
I
of 200 µA. This provides a greater than 80% power efficiency.
DD
When driving heavy dc loads, such as 2 kΩ, the positive edge under slewing conditions can experience some
distortion. This condition can be seen in Figure 38. This condition is affected by three factors:
Where the load is referenced. When the load is referenced to either rail, this condition does not occur. The
distortion occurs only when the output signal swings through the point where the load is referenced.
Figure 39 illustrates two 2-kΩ load conditions. The first load condition shows the distortion seen for a 2-kΩ
load tied to 2.5 V. The third load condition in Figure 39 shows no distortion for a 2-kΩ load tied to 0 V.
Load resistance. As the load resistance increases, the distortion seen on the output decreases. Figure 39
illustrates the difference seen on the output for a 2-kΩ load and a 100-kΩ load with both tied to 2.5 V.
Inputsignaledgerate. Fasterinputedgeratesforastepinputresultinmoredistortionthanwithslowerinput
edge rates.
25
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SLOS197 – AUGUST 1997
APPLICATION INFORMATION
macromodel information
Macromodel information provided was derived using Microsim Parts , the model generation software used
with Microsim PSpice . The Boyle macromodel (see Note 6) and subcircuit in Figure 57 are generated using
the TLV2721 typical electrical and operating characteristics at T = 25°C. Using this information, output
A
simulations of the following key parameters can be generated to a tolerance of 20% (in most cases):
Maximum positive output voltage swing
Maximum negative output voltage swing
Slew rate
Unity-gain frequency
Common-mode rejection ratio
Phase margin
Quiescent power dissipation
Input bias current
DC output resistance
AC output resistance
Short-circuit output current limit
Open-loop voltage amplification
NOTE 6: G. R. Boyle, B. M. Cohn, D. O. Pederson, andJ. E. Solomon, “MacromodelingofIntegratedCircuitOperationalAmplifiers”, IEEEJournal
of Solid-State Circuits, SC-9, 353 (1974).
99
DLN
3
EGND
+
–
V
DD+
92
9
FB
+
91
90
RSS
ISS
RO2
–
+
–
+
VB
DLP
RP
2
VLP
VLN
HLIM
–
+
–
10
+
–
VC
IN –
IN+
R2
C2
J1
J2
7
DP
6
53
+
–
1
VLIM
11
DC
12
RD2
GA
GCM
8
C1
RD1
60
RO1
+
–
DE
VAD
5
54
V
DD–
–
+
4
VE
OUT
.SUBCKT TLV2721 1 2 3 4 5
RD1
RD2
R01
R02
RP
RSS
VAD
VB
VC
VE
60
60
8
11
12
5
10.61E3
10.61E3
35
C1
11
6
12
7
12.53E–12
C2
50.00E–12
DC
5
53
5
DX
DX
DX
DX
DX
7
99
4
35
DE
54
90
92
4
3
49.50E3
22.22E6
–.5
DLP
DLN
DP
91
90
3
10
60
9
99
4
0
DC 0
EGND
FB
99
7
0
99
POLY (2) (3,0) (4,0) 0 .5 .5
POLY (5) VB VC VE VLP
3
53
4
DC .666
DC .666
DC 0
54
7
+ VLN 0 893.6E3 –90E3 90E3 90E3 –90E3
VLIM
VLP
VLN
8
GA
6
0
6
11
10
12 94.25E–6
99 9.300E–9
91
0
0
DC 3.4
DC 11.4
GCM
ISS
HLIM
J1
0
92
3
10
0
DC 9.000E–6
VLIM 1K
10 JX
10 JX
100.0E3
.MODEL DX D (IS=800.0E–18)
90
11
12
6
.MODEL JX PJF (IS=500.0E–15 BETA=1.527E–3
2
1
+ VTO=–.001)
.ENDS
J2
R2
9
Figure 56. Boyle Macromodel and Subcircuit
PSpice and Parts are trademark of MicroSim Corporation.
Macromodels, simulation models, or other models provided by TI,
directly or indirectly, are not warranted by TI as fully representing all
of the specification and operating characteristics of the
semiconductor product to which the model relates.
26
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MECHANICAL INFORMATION
DBV (R-PDSO-G5)
PLASTIC SMALL-OUTLINE PACKAGE
0,40
0,20
M
0,25
0,95
5
4
0,15 NOM
1,80
1,50
3,00
2,50
1
3
Gage Plane
3,10
2,70
0,25
0°–8°
0,55
0,35
Seating Plane
0,10
1,30
1,00
0,05 MIN
4073253-4/A 12/96
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Body dimensions include mold flash or protrusion.
27
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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