LTC1783HS6#TR [Linear]
IC OP-AMP, 950 uV OFFSET-MAX, 1.3 MHz BAND WIDTH, PDSO6, PLASTIC, MO-193, TSOT-23, 6 PIN, Operational Amplifier;
| 型号： | LTC1783HS6#TR |
| 厂家： | 
Linear |
| 描述： | IC OP-AMP, 950 uV OFFSET-MAX, 1.3 MHz BAND WIDTH, PDSO6, PLASTIC, MO-193, TSOT-23, 6 PIN, Operational Amplifier 光电二极管 |
| 文件： | 总16页 (文件大小：173K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LT1783
1.25MHz, Over-The-Top
Micropower, Rail-to-Rail
Input and Output Op Amp in SOT-23
FEATURES
DESCRIPTION
+
The LT®1783 is a 1.25MHz op amp available in the small
SOT-23packagethatoperatesonallsingleandsplitsupplies
n
Operates with Inputs Above V
Rail-to-Rail Input and Output
n
n
Micropower: 300μA Supply Current Max
Operating Temperature Range: –40°C to 125°C
Gain Bandwidth Product: 1.25MHz
Slew Rate: 0.42V/μs
Low Input Offset Voltage: 800μV Max
Single Supply Input Range: 0V to 18V
High Output Current: 18mA Min
withatotalvoltageof2.5Vto18V. Theamplifierdrawsless
than 300μA of quiescent current and has reverse-battery
protection, drawing negligible current for reverse supply
voltages up to 18V.
n
n
n
n
n
n
n
n
n
n
n
The input range of the LT1783 includes ground, and a
unique feature of this device is its Over-The-Top® opera-
tion capabilitity with either or both of its inputs above the
positive rail. The inputs handle 18V both differential and
common mode, independent of supply voltage. The input
stage incorporates phase reversal protection to prevent
false outputs from occurring even when the inputs are 9V
below the negative supply.
Specified on 3V, 5V and 5V Supplies
Output Shutdown on 6-Lead Version
Reverse-Battery Protection to 18V
High Voltage Gain: 1500V/mV
™
Low Profile (1mm) ThinSOT Package
APPLICATIONS
The LT1783 can drive loads up to 18mA and still maintain
rail-to-rail capability. A shutdown feature on the 6-lead
version can disable the part, making the output high
impedance and reducing quiescent current to 5μA. The
LT1783 op amp is available in the 5- and 6-lead SOT-23
packages. For applications requiring lower power, refer
to the LT1782.
n
Portable Instrumentation
n
Battery- or Solar-Powered Systems
n
Sensor Conditioning
Supply Current Sensing
Battery Monitoring
MUX Amplifiers
n
n
n
L, LT, LTC, LTM and Over-The-Top are registered trademarks of Linear Technology
Corporation. ThinSOT is a trademark of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
n
4mA to 20mA Transmitters
TYPICAL APPLICATION
Positive Supply Rail Current Sense
Distribution of Input Offset Voltage
25
+
V
V
= 5V, 0V
CM
V
S
= 2.5V
5V TO 18V
20
15
10
5
200Ω
5V
0.2Ω
+
2N3904
V
LT1783
200Ω
= 2Ω(I
)
LOAD
–
OUT
0V TO 4.3V
I
2k
LOAD
LOAD
1783 TA01
0
–900 –600 –300
0
300
600
900
INPUT OFFSET VOLTAGE (μV)
1783 TA01b
1783fb
1
LT1783
(Note 1)
ABSOLUTE MAXIMUM RATINGS
+
–
Specified Temperature Range (Note 4)
Total Supply Voltage (V to V )................................ 18V
LT1783C ............................................. –40°C to 85°C
LT1783I .............................................. –40°C to 85°C
LT1783H ........................................... –40°C to 125°C
Junction Temperature ......................................... 150°C
Storage Temperature Range.................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec) ................. 300°C
Input Differential Voltage.......................................... 18V
–
Input Pin Voltage to V ................................ +24V/–10V
–
Shutdown Pin Voltage Above V ............................. 18V
Shutdown Pin Current ........................................ 10mA
Output Short-Circuit Duration (Note 2) ........... Indefinite
Operating Temperature Range (Note 3)
LT1783C ............................................. –40°C to 85°C
LT1783I .............................................. –40°C to 85°C
LT1783H ........................................... –40°C to 125°C
PIN CONFIGURATION
TOP VIEW
TOP VIEW
+
+
V
1
2
3
5
4
1
2
6
5
4
OUT
V
OUT
–
–
SHDN
–IN
V
V
+IN
–IN
+IN 3
S5 PACKAGE
5-LEAD PLASTIC SOT-23
S6 PACKAGE
6-LEAD PLASTIC SOT-23
T
JMAX
= 150°C, θ = 230°C/W
JA
T
= 150°C, θ = 250°C/W
JMAX
JA
ORDER INFORMATION
LEAD FREE FINISH
LTC1783CS5#PBF
LTC1783IS5#PBF
LTC1783HS5#PBF
LTC1783CS6#PBF
LTC1783IS6#PBF
LTC1783HS6#PBF
LEAD BASED FINISH
LTC1783CS5
TAPE AND REEL
PART MARKING
LTLF
PACKAGE DESCRIPTION
5-Lead Plastic SOT-23
5-Lead Plastic SOT-23
5-Lead Plastic SOT-23
6-Lead Plastic SOT-23
6-Lead Plastic SOT-23
6-Lead Plastic SOT-23
PACKAGE DESCRIPTION
5-Lead Plastic SOT-23
5-Lead Plastic SOT-23
5-Lead Plastic SOT-23
6-Lead Plastic SOT-23
6-Lead Plastic SOT-23
6-Lead Plastic SOT-23
TEMPERATURE RANGE
–40°C to 85°C
LTC1783CS5#TRPBF
LTC1783IS5#TRPBF
LTC1783HS5#TRPBF
LTC1783CS6#TRPBF
LTC1783IS6#TRPBF
LTC1783HS6#TRPBF
TAPE AND REEL
LTLG
–40°C to 85°C
LTXR
–40°C to 125°C
–40°C to 85°C
LTIU
LTIV
–40°C to 85°C
LTXS
–40°C to 125°C
TEMPERATURE RANGE
–40°C to 85°C
PART MARKING
LTLF
LTC1783CS5#TR
LTC1783IS5#TR
LTC1783IS5
LTLG
–40°C to 85°C
LTC1783HS5
LTC1783HS5#TR
LTC1783CS6#TR
LTC1783IS6#TR
LTXR
–40°C to 125°C
–40°C to 85°C
LTC1783CS6
LTIU
LTC1783IS6
LTIV
–40°C to 85°C
LTC1783HS6
LTC1783HS6#TR
LTXS
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
1783fb
2
LT1783
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the specified
temperature range, otherwise specifications are at TA = 25°C. VS = 3V, 0V; VS = 5V, 0V; VCM = VOUT = half supply, for the 6-lead part
VPIN5 = 0V, pulse power tested unless otherwise specified. (Note 4)
LT1783C/LT1783I
SYMBOL PARAMETER
CONDITIONS
T = 25°C
MIN
TYP
MAX
UNITS
V
Input Offset Voltage
400
800
950
μV
μV
μV
OS
A
l
l
0°C ≤ T ≤ 70°C
A
–40°C ≤ T ≤ 85°C
1100
A
l
Input Offset Voltage Drift (Note 9)
Input Offset Current
2
4
5
μV/°C
l
l
I
I
8
7
nA
μA
OS
V
V
= 18V (Note 5)
= 18V (Note 5)
CM
CM
l
l
Input Bias Current
45
35
0.1
80
60
nA
μA
nA
B
SHDN or V = 0V, V = 0V to 18V
S
CM
l
Input Bias Current Drift
Input Noise Voltage
0.06
0.6
nA/°C
0.1Hz to 10Hz
f = 1kHz
μV
P-P
e
n
Input Noise Voltage Density
Input Noise Current Density
Input Resistance
20
nV/√Hz
pA/√Hz
i
n
f = 1kHz
0.14
l
l
R
IN
Differential
0.65
0.3
1.3
1
0.5
MΩ
GΩ
MΩ
Common Mode, V = 0V to (V – 1V)
CM
CM
CC
Common Mode, V = 0V to 18V
C
Input Capacitance
5
pF
V
IN
l
Input Voltage Range
0
18
l
l
CMRR
PSRR
Common Mode Rejection Ratio
(Note 5)
V
V
= 0V to V – 1V
90
68
100
80
dB
dB
CM
CM
CC
= 0V to 18V (Note 8)
l
Power Supply Rejection Ratio
Large-Signal Voltage Gain
V = 3V to 12.5V, V = V = 1V
90
100
dB
S
CM
O
A
VOL
V = 3V, V = 500mV to 2.5V, R = 10k
200
133
100
1500
V/mV
V/mV
V/mV
S
S
S
O
L
l
l
V = 3V, 0°C ≤ T ≤ 70°C
A
V = 3V, –40°C ≤ T ≤ 85°C
A
V = 5V, V = 500mV to 4.5V, R = 10k
400
250
200
1500
V/mV
V/mV
V/mV
S
O
L
l
l
V = 5V, 0°C ≤ T ≤ 70°C
S
A
V = 5V, –40°C ≤ T ≤ 85°C
S
A
l
l
l
V
V
Output Voltage Swing LOW
Output Voltage Swing HIGH
No Load
3
8
400
600
mV
mV
mV
OL
I
= 5mA
200
330
SINK
V = 5V, I
= 10mA
SINK
S
l
l
V = 3V, No Load
2.91
2.6
2.94
2.8
V
V
OH
S
V = 3V, I
= 5mA
SOURCE
S
l
l
V = 5V, No Load
S
4.91
4.5
4.94
4.74
V
V
S
V = 5V, I
= 10mA
SOURCE
I
Short-Circuit Current (Note 2)
V = 3V, Short to GND
5
15
10
30
mA
mA
SC
S
V = 3V, Short to V
S
CC
V = 5V, Short to GND
15
20
30
40
mA
mA
S
V = 5V, Short to V
S
CC
l
l
Minimum Supply Voltage
Reverse Supply Voltage
2.5
2.7
V
V
I = –100μA
S
18
I
I
Supply Current
(Note 6)
210
300
350
375
μA
μA
μA
S
l
l
0°C ≤ T ≤ 70°C
A
–40°C ≤ T ≤ 85°C
A
l
Supply Current, SHDN
Shutdown Pin Current
V
PIN5
= 2V, No Load (Note 10)
5
18
μA
l
l
V
PIN5
V
PIN5
V
PIN5
= 0.3V, No Load (Note 10)
= 2V, No Load (Note 10)
= 5V, No Load (Note 10)
0.5
2
5
nA
μA
μA
SHDN
8
l
l
Shutdown Output Leakage Current
Maximum Shutdown Pin Current
V
PIN5
V
PIN5
= 2V, No Load (Note 10)
= 18V, No Load (Note 10)
0.05
10
1
μA
30
μA
1783fb
3
LT1783
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the specified
temperature range, otherwise specifications are at TA = 25°C. VS = 3V, 0V; VS = 5V, 0V; VCM = VOUT = half supply, for the 6-lead part
VPIN5 = 0V, pulse power tested unless otherwise specified. (Note 4)
LT1783C/LT1783I
SYMBOL PARAMETER
CONDITIONS
(Note 10)
MIN
TYP
MAX
UNITS
l
l
V
V
Shutdown Pin Input Low Voltage
Shutdown Pin Input High Voltage
Turn-On Time
0.3
V
V
L
(Note 10)
2
H
t
t
V
V
= 5V to 0V, R = 10k (Note 10)
25
3
μs
μs
ON
OFF
PIN5
PIN5
L
Turn-Off Time
= 0V to 5V, R = 10k (Note 10)
L
GBW
Gain Bandwidth Product
(Note 5)
f = 5kHz
0°C ≤ T ≤ 70°C
750
600
550
1250
kHz
kHz
kHz
l
l
A
–40°C ≤ T ≤ 85°C
A
SR
Slew Rate
(Note 7)
0.24
0.21
0.19
0.42
V/μs
V/μs
V/μs
A = –1, R = ∞
V
L
l
l
0°C ≤ T ≤ 70°C
A
–40°C ≤ T ≤ 85°C
A
FPBW
Full-Power Bandwidth (Note 11)
Settling Time
V
= 2V
66
12
kHz
μs
OUT
P-P
t
S
V = 5V, ΔV
S
= 2V to 0.1%, A = –1
V
OUT
THD
Distortion
V = 3V, V = 2V , A = 1, R = 10k, f = 1kHz
0.001
%
S
O
P-P
V
L
The l denotes the specifications which apply over the specified temperature range, otherwise specifications are at TA = 25°C.
VS = 5V, VCM = 0V, VOUT = 0V, for the 6-lead part VPIN5 = V–, pulse power tested unless otherwise specified. (Note 4)
LT1783C/LT1783I
SYMBOL PARAMETER
CONDITIONS
T = 25°C
MIN
TYP
MAX
UNITS
V
Input Offset Voltage
500
900
1050
1200
μV
μV
μV
OS
A
l
l
0°C ≤ T ≤ 70°C
A
–40°C ≤ T ≤ 85°C
A
l
l
l
l
Input Offset Voltage Drift (Note 9)
Input Offset Current
2
4
5
8
μV/°C
nA
I
I
OS
Input Bias Current
40
0.06
1
80
nA
B
Input Bias Current Drift
Input Noise Voltage
nA/°C
0.1Hz to 10Hz
f = 1kHz
μV
P-P
e
Input Noise Voltage Density
Input Noise Current Density
Input Resistance
20
0.14
nV/√Hz
pA/√Hz
n
i
n
f = 1kHz
l
l
R
Differential
Common Mode, V = –5V to 13V
0.65
0.3
1.3
0.5
MΩ
MΩ
IN
CM
C
Input Capacitance
5
pF
V
IN
l
l
Input Voltage Range
–5
68
13
CMRR
Common Mode Rejection Ratio
Large-Signal Voltage Gain
V
= –5V to 13V
80
dB
CM
A
VOL
V = 4V, R = 10k
70
50
40
160
V/mV
V/mV
V/mV
O
L
l
l
0°C ≤ T ≤ 70°C
A
–40°C ≤ T ≤ 85°C
A
l
l
l
V
Output Voltage Swing LOW
Output Voltage Swing HIGH
No Load
–4.997 –4.992
V
V
V
OL
OH
I
I
= 5mA
–4.8
–4.6
–4.4
SINK
SINK
= 10mA
–4.67
l
l
l
V
No Load
4.91
4.6
4.5
4.94
4.8
4.74
V
V
V
I
I
= 5mA
SOURCE
SOURCE
= 10mA
I
Short-Circuit Current (Note 2)
Power Supply Rejection Ratio
Short to GND
0°C ≤ T ≤ 70°C
18
15
30
mA
mA
SC
l
l
A
PSRR
V = 1.5V to 9V
S
90
100
dB
1783fb
4
LT1783
The l denotes the specifications which apply over the specified
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at TA = 25°C. VS = 5V, VCM = 0V, VOUT = 0V, for the 6-lead part VPIN5 = V–,
pulse power tested unless otherwise specified. (Note 4)
LT1783C/LT1783I
SYMBOL PARAMETER
CONDITIONS
0°C ≤ T ≤ 70°C
MIN
TYP
MAX
UNITS
I
I
Supply Current
230
325
375
400
μA
μA
μA
S
l
l
A
–40°C ≤ T ≤ 85°C
A
l
l
Supply Current, SHDN
Shutdown Pin Current
V
= –3V, V = 5V, No Load (Note 10)
6
20
μA
PIN5
S
V
PIN5
V
PIN5
= –4.7V, V = 5V, No Load (Note 10)
0.5
2
nA
μA
SHDN
S
= –3V, V = 5V, No Load (Note 10)
8
30
1
S
l
l
l
l
l
l
Maximum Shutdown Pin Current
Shutdown Output Leakage Current
Shutdown Pin Input Low Voltage
Shutdown Pin Input High Voltage
Turn-On Time
V
PIN5
V
PIN5
= 9V, V = 9V (Note 10)
10
μA
μA
V
S
= –7V, V = 9V, No Load (Note 10)
0.05
S
V
V
V = 5V (Note 10)
S
–4.7
L
V = 5V (Note 10)
S
–2.8
V
H
t
t
V
V
= 0V to –5V, R = 10k (Note 10)
25
3
μs
μs
ON
OFF
PIN5
PIN5
L
Turn-Off Time
= –5V to 0V, R = 10k (Note 10)
L
GBW
Gain Bandwidth Product
f = 5kHz
0°C ≤ T ≤ 70°C
800
700
625
1300
kHz
kHz
kHz
l
l
A
–40°C ≤ T ≤ 85°C
A
SR
Slew Rate
0.26
0.23
0.21
0.45
V/μs
V/μs
V/μs
A = –1, R = ∞, V = 4V, Measured at V = 2V
V
L
O
O
l
l
0°C ≤ T ≤ 70°C
A
–40°C ≤ T ≤ 85°C
A
FPBW
Full-Power Bandwidth (Note 11)
Settling Time
V
= 8V
18
10
kHz
μs
OUT
P-P
t
S
ΔV
= 4V to 0.1%, A = 1
V
OUT
The l denotes the specifications which apply over the full operating temperature range of –40°C ≤ TA ≤ 125°C. VS = 3V, 0V; VS = 5V, 0V;
VCM = VOUT = half supply, for the 6-lead part VPIN5 = 0V, pulse power tested unless otherwise specified. (Note 4)
LT1783H
TYP
SYMBOL
PARAMETER
CONDITIONS
MIN
MAX
UNITS
V
Input Offset Voltage
400
850
3
μV
OS
l
l
mV
Input Offset Voltage Drift (Note 9)
Input Offset Current
15
μV/°C
l
l
I
I
15
10
nA
μA
OS
V
V
= 18V (Note 5)
= 18V (Note 5)
CM
l
l
Input Bias Current
150
150
nA
μA
B
CM
l
Input Voltage Range
0.3
18
V
l
l
CMRR
Common Mode Rejection Ratio
V
CM
V
CM
= 0.3V to V – 1V
76
60
dB
dB
CC
= 0.3V to 18V
A
VOL
Large-Signal Voltage Gain
V = 3V, V = 500mV to 2.5V, R = 10k
200
50
1500
1500
V/mV
V/mV
S
O
L
l
V = 5V, V = 500mV to 4.5V, R = 10k
400
100
V/mV
V/mV
S
O
L
l
l
l
l
V
V
Output Voltage Swing LOW
Output Voltage Swing HIGH
No Load
15
mV
mV
mV
OL
I
= 5mA
800
SINK
V = 5V, I
= 10mA
SINK
1200
S
l
l
V = 3V, No Load
2.85
2.30
V
V
OH
S
V = 3V, I
= 5mA
SOURCE
S
l
l
V = 5V, No Load
S
4.85
4
V
V
S
V = 5V, I
= 10mA
SOURCE
l
PSRR
Power Supply Rejection Ratio
V = 3V to 12.5V, V = V = 1V
80
dB
S
CM
O
1783fb
5
LT1783
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range of –40°C ≤ TA ≤ 125°C. VS = 3V, 0V; VS = 5V, 0V; VCM = VOUT = half supply, for the 6-lead part VPIN5 = 0V,
pulse power tested unless otherwise specified. (Note 4)
LT1783H
SYMBOL
PARAMETER
CONDITIONS
MIN
2.7
18
TYP
MAX
UNITS
l
l
Minimum Supply Voltage
Reverse Supply Voltage
Supply Current
V
V
I = –100μA
S
I
I
210
0.5
300
600
μA
μA
S
l
l
Supply Current, SHDN
Shutdown Pin Current
V
= 2V, No Load (Note 10)
25
μA
PIN5
l
l
V
PIN5
V
PIN5
= 0.3V, No Load (Note 10)
= 2V, No Load (Note 10)
nA
μA
SHDN
12
2.5
40
l
l
Output Leakage Current
V
PIN5
V
PIN5
= 2V, No Load (Note 10)
= 18V, No Load (Note 10)
μA
μA
Maximum Shutdown Pin Current
Gain Bandwidth Product
GBW
SR
f = 5kHz (Note 5)
750
400
1250
0.42
kHz
kHz
l
l
Slew Rate
0.24
0.12
V/μs
V/μs
A = –1, R = ∞ (Note 7)
V
L
The l denotes the specifications which apply over the full operating temperature range of –40°C ≤ TA ≤ 125°C. VS = 5V, VCM = 0V,
VOUT = 0V, VSHDN = V–, TA = –40°C to 125°C, for the 6-lead part VPIN5 = V–, pulse power tested unless otherwise specified. (Note 4)
LT1783H
TYP
SYMBOL
PARAMETER
CONDITIONS
MIN
MAX
UNITS
V
Input Offset Voltage
500
950
3.1
μV
OS
l
l
l
l
l
mV
Input Offset Voltage Drift (Note 9)
Input Offset Current
15
15
μV/°C
nA
I
I
OS
Input Bias Current
150
nA
B
CMRR
Common Mode Rejection Ratio
Large-Signal Voltage Gain
V
= –4.7V to 13V
60
dB
CM
A
VOL
V = 4V, R = 10k
O
70
10
160
V/mV
V/mV
L
l
l
l
l
V
O
Output Voltage Swing
No Load
4.85
4.20
3.80
V
V
V
I
I
=
=
5mA
OUT
OUT
10mA
l
l
PSRR
Power Supply Rejection Ratio
Minimum Supply Voltage
Supply Current
V = 1.5V to 9V
80
dB
V
S
1.35
I
230
0.5
325
650
μA
μA
S
l
l
Supply Current, SHDN
Shutdown Pin Current
V
= –3V, V = 5V, No Load (Note 10)
25
μA
PIN5
S
l
l
I
V
PIN5
V
PIN5
= –4.7V, V = 5V, No Load (Note 10)
nA
μA
SHDN
S
= –3V, V = 5V, No Load (Note 10)
12
45
S
l
l
l
l
Maximum Shutdown Pin Current
Output Leakage Current
V
PIN5
V
PIN5
= 9V, V = 9V (Note 10)
μA
μA
V
S
= –7V, V = 9V, No Load
3
S
V
V
Shutdown Pin Input Low Voltage
Shutdown Pin Input High Voltage
Gain Bandwidth Product
V = 5V
S
–4.7
L
V = 5V
S
–2.8
V
H
GBW
f = 5kHz
800
425
1300
0.45
kHz
kHz
l
l
SR
Slew Rate
0.26
0.14
V/μs
V/μs
A = –1, R = ∞, V = 4V
V
L
O
Measured at V = 2V
O
1783fb
6
LT1783
ELECTRICAL CHARACTERISTICS
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 5: V = 5V limits are guaranteed by correlation to V = 3V and
S
S
V = 5V or V = 9V tests.
S
S
Note 6: V = 3V limits are guaranteed by correlation to V = 5V and
S
S
V = 5V or V = 9V tests.
S
S
Note 2: A heat sink may be required to keep the junction temperature
below absolute maximum.
Note 7: Guaranteed by correlation to slew rate at V = 5V, and GBW at
S
V = 3V and V = 5V tests.
S
S
Note 3: The LT1783C and LT1873I are guaranteed functional over the
operating temperature range of –40°C to 85°C. The LT1783H is guaranteed
functional over the operating temperature range of –40°C to 125°C.
Note 8: This specification implies a typical input offset voltage of 1.8mV at
= 18V and a maximum input offset voltage of 7.2mV at V = 18V.
Note 9: This parameter is not 100% tested.
V
CM
CM
Note 4: The LT1783C is guaranteed to meet specified performance from
0°C to 70°C. The LT1783C is designed, characterized and expected to
meet specified performance from –40°C to 85°C but is not tested or
QA sampled at these temperatures. The LT1783I is guaranteed to meet
specified performance from –40°C to 85°C. The LT1783H is guaranteed to
meet specified performance from –40°C to 125°C.
Note 10: Specifications apply to 6-lead SOT-23 with shutdown.
Note 11: Full-power bandwidth is calculated from the slew rate:
FPBW = SR/2πV .
P
TYPICAL PERFORMANCE CHARACTERISTICS
Output Voltage vs Large Input
Voltage
Supply Current vs Supply Voltage
Minimum Supply Voltage
300
280
260
240
220
200
180
160
140
120
400
300
5
4
3
2
1
0
V
= 5V, 0V
S
T
T
= 125°C
= 25°C
A
A
200
100
T
T
= –55°C
= 25°C
A
0
T
= 125°C
A
5V
–100
–200
–300
–400
+
–
V
IN
T
= –55°C
A
A
2
4
6
8
10 12 14 16 18
0
1
2
3
4
5
–10–8 –6 –4 –2 0
2
4
6
8 10 12 14 16 18
SUPPLY VOLTAGE (V)
TOTAL SUPPLY VOLTAGE (V)
V
(V)
IN
1783 G01
1783 G02
1783 G02a
Input Bias Current vs Common
Mode Voltage
Output Saturation Voltage vs
Load Current (Output High)
Output Saturation Voltage vs
Load Current (Output Low)
1
0.1
1
50000
40000
30000
20000
10000
V
V
=
OD
2.5V
= 30mV
V
V
=
OD
2.5V
= 30mV
S
S
T
= 125°C
A
T
= 125°C
A
0.1
250
200
150
100
50
T
= –55°C
A
0.01
0.001
T
= 25°C
T
= –55°C
A
A
T
= 25°C
100μ
T
= 25°C
A
A
T
= 125°C
A
T
= –55°C
0
A
0.01
–50
1μ
10μ
1m
10m
3.8
4
4.2 4.4 4.6 4.8
5 5.2 5.4 5.6 14 16 18
1μ
10μ
100μ
1m
10m
SOURCING LOAD CURRENT (A)
COMMON MODE VOLTAGE (V)
SINKING LOAD CURRENT (A)
1783 G04
1783 G05
1783 G03
1783fb
7
LT1783
TYPICAL PERFORMANCE CHARACTERISTICS
Output Saturation Voltage vs
Input Overdrive
Output Short-Circuit Current vs
Temperature
0.1Hz to 10Hz Noise Voltage
55
50
45
40
35
30
100
10
1
V
= 2.5V
V
= 5V
S
S
OUTPUT HIGH
SOURCING CURRENT
SINKING CURRENT
OUTPUT LOW
V
= 2.5V
S
NO LOAD
0
10
20
30
40
50
60
–50 –25
0
25
50
75 100 125
0
1
2
3
4
5
6
7
8
9
10
INPUT OVERDRIVE (mV)
TEMPERATURE (°C)
TIME (sec)
1783 G06
1783 G06a
1783 G07
Noise Voltage Density vs
Frequency
Gain and Phase Shift vs
Frequency
Input Noise Current vs Frequency
70
60
50
40
30
20
10
3.0
2.5
2.0
1.5
1.0
0.5
0
70
60
120
100
80
V
= 2.5V
V
=
2.5V
V
=
2.5V
S
S
S
PHASE
50
40
60
30
40
20
20
GAIN
10
0
0
–20
–40
–60
–80
–10
–20
–30
1
10
100
1k
10k
1
10
100
1k
10k
1k
10k
100k
1M
10M
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
1783 G10
1783 G08
1783 G09
Gain Bandwidth Product vs
Temperature
Slew Rate vs Temperature
1400
1350
1300
1250
1200
1150
1100
0.8
0.7
0.6
0.5
0.4
0.3
0.2
V
= 5V
f = 5kHz
S
V
= 2.5V
S
RISING
FALLING
–50 –25
0
25
50
75 100 125
–50 –25
0
25
50
75 100 125
TEMPERATURE (°C)
TEMPERATURE (°C)
1783 G11
1783 G12
1783fb
8
LT1783
TYPICAL PERFORMANCE CHARACTERISTICS
Gain Bandwidth Product and
Gain Bandwidth and Phase
Margin vs Load Resistance
Phase Margin vs Supply Voltage
65
65
60
55
A
= –1
G
V
F
R
= R = 10k
PHASE MARGIN
f = 5kHz
60
55
PHASE MARGIN
1400
1200
1000
800
GAIN BANDWIDTH PRODUCT
1300
1250
1200
V
A
= 2.5V
= –1
G
S
V
F
GAIN BANDWIDTH PRODUCT
R
= R = 10k
f = 5kHz
1k
10k
LOAD RESISTANCE (Ω)
100k
0
2
4
6
8
10 12 14 16 18
TOTAL SUPPLY VOLTAGE (V)
1783 G14
1783 G13
PSRR vs Frequency
CMRR vs Frequency
Output Impedance vs Frequency
100
10
90
80
70
60
50
40
30
20
10
0
110
100
90
V
S
= 2.5V
V
= 2.5V
V
S
=
2.5V
S
A
A
= 100
= 10
V
V
POSITIVE SUPPLY
80
1
0.1
70
60
NEGATIVE SUPPLY
50
A
= 1
V
40
0.01
100
–10
30
10k
1k
10k
100k
1M
1k
10k
100k
1M
100k
1M
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
1783 G15
1783 G17
1783 G16
Disabled Output Impedance vs
Frequency (Note 8)
Settling Time to 0.1% vs Output
Step
Capacitive Load Handling
Overshoot vs Capacitive Load
1M
100k
10k
1k
4
3
40
35
30
25
20
15
10
5
V
V
=
PIN5
2.5V
V
V
= 5V, 0V
= 2.5V
V
= 5V
S
S
CM
S
(SHUTDOWN) = 2.5V
A
= 1
A = –1
V
V
2
1
0
A
= 1
= 5
–1
–2
–3
–4
V
A
= 1
A = –1
V
V
A
A = 10
V
V
100
0
100
1k
10k
100k
1M
0
2
4
6
8
10 12 14 16 18 20
10
100
1000
10000
FREQUENCY (Hz)
SETTLING TIME (μs)
CAPACITIVE LOAD (pF)
1783 G19
1783 G17a
1783 G18
1783fb
9
LT1783
TYPICAL PERFORMANCE CHARACTERISTICS
Undistorted Output Swing vs
Frequency
Total Harmonic Distortion + Noise
vs Frequency
Total Harmonic Distortion + Noise
vs Load Resistance
1
1
12
10
8
V
V
V
= 3V, 0V
= 2V
CM
= 10k
V
A
V
= 3V TOTAL
= 1
S
OUT
S
V
V
=
5V
P-P
S
= 1.2V
= 2V AT 1kHz
IN
P-P
V
V
=
1.5V
1V
S
R
L
0.1
0.1
=
IN
6
0.010
0.001
0.01
0.001
A
= –1
= 1
V
V
V
V
= 3V, 0V
IN
S
V
=
2.5V
S
= 0.5V TO 2.5V
4
V
V
= 3V, 0V
IN
A
S
2
= 0.2V TO 2.2V
DISTORTION ≤ 1%
= 1
A
V
0.0001
0
0.0001
100
1k
10k
100k
10
100
1k
FREQUENCY (Hz)
10k
100k
100
1k
10k
100k
FREQUENCY (Hz)
LOAD RESISTANCE TO GROUND (Ω)
1783 G20
1783 G21
1783 G22
Total Harmonic Distortion + Noise
vs Output Voltage Amplitude
Supply Current vs SHDN Pin
Voltage
Open-Loop Gain
10
1
275
250
225
200
175
150
125
100
75
V
= 5V
V
= 5V, 0V
S
S
A
= –1
V
F
S
T
= 125°C
A
R
V
= R = 100k
G
=
1.5V
= 0V
R
R
= 2k
L
L
V
CM
T
= 25°C
A
A
= –1
= 10k
V
F
S
R
= R = 100k
G
V
V
= 3V, 0V
T
A
= –55°C
0.1
0.01
= 1.5V
R
= 50k
CM
L
A
V
V
= 1
V
S
= 3V, 0V
= 1.5V
CM
A
V
V
= 1
=
CM
V
S
50
1.5V
25
= 0V
0.001
0
–6 –5 –4 –3 –2 –1
0
1
2
3
4
5
6
0
0.5
1
1.5
2
2.5
0
1
2
3
OUTPUT VOLTAGE (V)
SHUTDOWN PIN VOLTAGE (V)
OUTPUT VOLTAGE AMPLITUDE (V
)
P-P
1783 G23
1783 G24
1783 G25
Large-Signal Response
Small-Signal Response
1783 G27
1783 G26
V
A
C
=
5V
S
V
L
V
A
C
=
5V
S
V
L
= 1
= 1
= 15pF
= 15pF
1783fb
10
LT1783
APPLICATIONS INFORMATION
Supply Voltage
The inputs are protected against excursions as much as
–
10V below V by an internal 1k resistor in series with each
The positive supply pin of the LT1783 should be bypassed
with a small capacitor (typically 0.1μF) within an inch of
the pin. When driving heavy loads, an additional 4.7μF
electrolytic capacitor should be used. When using split
supplies, the same is true for the negative supply pin.
input and a diode from the input to the negative supply.
The input stage of the LT1783 incorporates phase reversal
protection to prevent the output from phase reversing for
–
inputs up to 9V below V . There are no clamping diodes
between the inputs and the maximum differential input
voltage is 18V.
The LT1783 is protected against reverse-battery voltages
up to 18V. In the event a reverse-battery condition occurs,
the supply current is less than 1nA.
Output
The output of the LT1783 can swing to within 60mV of the
positive rail with no load and within 3mV of the negative
rail with no load. When monitoring input voltages within
60mV of the positive rail or within 3mV of the negative rail,
gain should be taken to keep the output from clipping. The
LT1783 can sink and source over 30mA at 5V supplies,
sourcing current is reduced to 10mA at 3V total supplies
as noted in the Electrical Characteristics.
Inputs
The LT1783 has two input stages, NPN and PNP (see the
SimplifiedSchematic),resultinginthreedistinctoperating
regions as shown in the Input Bias Current vs Common
Mode typical performance curve.
+
For input voltages about 0.8V or more below V , the PNP
input stage is active and the input bias current is typically
–40nA. When the input common mode voltage is within
0.5V of the positive rail, the NPN stage is operating and
the input bias current is typically 80nA. Increases in tem-
peraturewillcausethevoltageatwhichoperationswitches
from the PNP input stage to the NPN input stage to move
The LT1783 is internally compensated to drive at least
400pF of capacitance under any output loading condi-
tions. A 0.22μF capacitor in series with a 150Ω resistor
between the output and ground will compensate these
amplifiers for larger capacitive loads, up to 10,000pF, at
all output currents.
+
towards V . The input offset voltage of the NPN stage is
untrimmed and is typically 1.8mV.
Distortion
A Schottky diode in the collector of the input transistors,
along with special geometries for these NPN transistors,
allowtheLT1783tooperatewitheitherorbothofitsinputs
There are two main contributors to distortion in op amps:
output crossover distortion as the output transitions from
sourcing to sinking current, and distortion caused by non-
linear common mode rejection. If the op amp is operating
inverting, there is no common mode induced distortion.
If the op amp is operating in the PNP input stage (input is
+
+
aboveV . Atabout0.3VaboveV , theNPNinputtransistor
isfullysaturatedandtheinputbiascurrentistypically30μA
at room temperature. The input offset voltage is typically
+
1.8mV when operating above V . The LT1783 will operate
–
+
+
with its inputs 18V above V regardless of V .
not within 0.8V of V ), the CMRR is very good, typically
1783fb
11
LT1783
100dB. When the LT1783 switches between input stages,
there is significant nonlinearity in the CMRR. Lower load
resistance increases the output crossover distortion but
has no effect on the input stage transition distortion. For
lowest distortion, the LT1783 should be operated single
supply, with the output always sourcing current and with
in single supply applications where the load is returned to
ground. The typical performance curve of open-loop gain
for various loads shows the details.
Shutdown
The 6-lead part includes a shutdown feature that disables
thepart,reducingquiescentcurrentandmakingtheoutput
high impedance. The part can be shut down by bringing
+
the input voltage swing between ground and (V – 0.8V).
See the Typical Performance Characteristics curves,
“Total Harmonic Distortion + Noise vs Output Voltage
Amplitude.”
–
the SHDN pin 1.2V or more above V . When shut down,
the supply current is about 5μA and the output leakage
–
+
current is less than 1μA (V ≤ V
≤ V ). In normal opera-
OUT
Gain
–
tion, the SHDN pin can be tied to V or left floating. See
the Typical Performance Characteristics curves, “Supply
Current vs Shutdown Voltage.”
The open-loop gain is almost independent of load when
theoutputissourcingcurrent.Thisoptimizesperformance
SIMPLIFIED SCHEMATIC
+
V
Q2
Q1
Q3
Q22
D1
D3
SHDN
J1
R1
6k
R2
1k
Q19
Q4
–IN
+IN
Q17
Q18
Q20
+
OUT
Q7
Q8
Q11 Q12
R3
1k
10μA
Q16
Q15
Q9
Q10
Q26
Q13
Q14
Q21
R4
8k
R5
8k
Q25 Q23
Q24
Q5
Q6
D4
D5
–
V
1783 SS
1783fb
12
LT1783
TYPICAL APPLICATION
Protected Fault Conditions
OK!
–18V
OK!
5V
+
+
V
V
LT1783
LT1783
+
24V
REVERSE BATTERY
INPUT OVERVOLTAGE
OK!
5V
OK!
5V
+
18V
LT1783
LT1783
10V
+
INPUT DIFFERENTIAL VOLTAGE
INPUTS BELOW GROUND
1783 TA03
1783fb
13
LT1783
PACKAGE DESCRIPTION
S5 Package
5-Lead Plastic TSOT-23
(Reference LTC DWG # 05-08-1635)
0.62
MAX
0.95
REF
2.90 BSC
(NOTE 4)
1.22 REF
1.50 – 1.75
(NOTE 4)
2.80 BSC
1.4 MIN
3.85 MAX 2.62 REF
PIN ONE
RECOMMENDED SOLDER PAD LAYOUT
PER IPC CALCULATOR
0.30 – 0.45 TYP
5 PLCS (NOTE 3)
0.95 BSC
0.80 – 0.90
0.20 BSC
DATUM ‘A’
0.01 – 0.10
1.00 MAX
0.30 – 0.50 REF
1.90 BSC
0.09 – 0.20
(NOTE 3)
NOTE:
S5 TSOT-23 0302 REV B
1. DIMENSIONS ARE IN MILLIMETERS
2. DRAWING NOT TO SCALE
3. DIMENSIONS ARE INCLUSIVE OF PLATING
4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR
5. MOLD FLASH SHALL NOT EXCEED 0.254mm
6. JEDEC PACKAGE REFERENCE IS MO-193
1783fb
14
LT1783
PACKAGE DESCRIPTION
S6 Package
6-Lead Plastic TSOT-23
(Reference LTC DWG # 05-08-1636)
2.90 BSC
(NOTE 4)
0.62
MAX
0.95
REF
1.22 REF
1.4 MIN
1.50 – 1.75
2.80 BSC
3.85 MAX 2.62 REF
(NOTE 4)
PIN ONE ID
RECOMMENDED SOLDER PAD LAYOUT
PER IPC CALCULATOR
0.30 – 0.45
6 PLCS (NOTE 3)
0.95 BSC
0.80 – 0.90
0.20 BSC
DATUM ‘A’
0.01 – 0.10
1.00 MAX
0.30 – 0.50 REF
1.90 BSC
0.09 – 0.20
(NOTE 3)
S6 TSOT-23 0302 REV B
NOTE:
1. DIMENSIONS ARE IN MILLIMETERS
2. DRAWING NOT TO SCALE
3. DIMENSIONS ARE INCLUSIVE OF PLATING
4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR
5. MOLD FLASH SHALL NOT EXCEED 0.254mm
6. JEDEC PACKAGE REFERENCE IS MO-193
1783fb
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
15
LT1783
TYPICAL APPLICATION
Current Source
V
CC
LT1634-1.25
R1
+
2N3906
LT1783
–
1.25V
R1
I
=
OUT
1783 TA02
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
LT1782
Micropower, Over-The-Top SOT-23 Rail-to-Rail Input and
Output Op Amp
SOT-23 Package, Micropower 40μA per Amplifier, Rail-to-Rail Input and
Output , 200kHz GBW
LT1490/LT1491
LT1636
Dual/Quad Over-The-Top Micropower Rail-to-Rail Input and Single Supply Input Range: –0.4V to 44V, Micropower 50μA per
Output Op Amps
Amplifier, Rail-to-Rail Input and Output , 200kHz GBW
Single Over-The-Top Micropower Rail-to-Rail Input and
Output Op Amp
55μA Supply Current, V Extends 44V Above V , Independent of V ,
CM EE CC
MSOP Package, Shutdown Function
LT1638/LT1639
Dual/Quad, 1.2MHz, 0.4V/μs, Over-The-Top Micropower
Rail-to-Rail Input and Output Op Amps
170μA Supply Current, Single Supply Input Range: –0.4V to 44V,
Rail-to-Rail Input and Output
1783fb
LT 0908 REV B • PRINTED IN USA
LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
16
●
●
© LINEAR TECHNOLOGY CORPORATION 1999
(408) 432-1900 FAX: (408) 434-0507 www.linear.com
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