TL070PW [TI]
JFET-INPUT OPERATIONAL AMPLIFIER; JFET输入运算放大器
| 型号： | TL070PW |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | JFET-INPUT OPERATIONAL AMPLIFIER |
| 文件： | 总15页 (文件大小：239K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TL070
JFET-INPUT
OPERATIONAL AMPLIFIER
SLOS121A – NOVEMBER 1993 – REVISED AUGUST 1994
D, P, OR PW PACKAGE
(TOP VIEW)
Low Power Consumption
Wide Common-Mode and Differential
Voltage Ranges
N1/COMP
IN–
COMP
1
2
3
4
8
7
6
5
Low Input Bias and Offset Currents
Output Short-Circuit Protection
V
CC+
IN+
OUT
V
OFFSET N2
CC –
Low Total Harmonic Distortion
0.003% Typ
Low Noise
symbol
V = 18 nV/√Hz Typ at f = 1 kHz
n
N1/COMP
COMP
High Input Impedance . . . JFET Input Stage
Common-Mode Input Voltage Range
Includes V
CC+
Latch-Up-Free Operation
+
–
IN+
IN–
High Slew Rate . . . 13 V/µs Typ
OUT
description
OFFSET N2
The JFET-input TL070 operational amplifier is
designed as the lower-noise version of the TL080
amplifier with low input bias and offset currents and fast slew rate. The low harmonic distortion and low noise
make the TL070 ideally suited for high-fidelity and audio preamplifier applications. This amplifier features JFET
inputs (for high input impedance) coupled with bipolar output stages integrated on a single monolithic chip.
The TL070C device is characterized for operation from 0°C to 70°C. The TL070I device is characterized for
operation from – 40°C to 85°C. The TL070M device is characterized for operation from –55°C to 125°C.
AVAILABLE OPTIONS
PACKAGE
V
max
IO
T
A
SMALL OUTLINE
(D)
PLASTIC DIP
(P)
TSSOP
(PW)
AT 25°C
0°C to 70°C
–40°C to 85°C
–55°C to 125°C
10 mV
10 mV
10 mV
TL070CD
TL070ID
TL070MD
TL070CP
TL070IP
TL070MP
TL070CPW
—
—
Copyright 1994, 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
TL070
JFET-INPUT
OPERATIONAL AMPLIFIER
SLOS121A – NOVEMBER 1993 – REVISED AUGUST 1994
schematic
V
CC+
IN+
64 Ω
64 Ω
IN –
128 Ω
OUT
N1/COMP
OFFSET N2
COMP
1080 Ω
1080 Ω
V
CC–
All component values shown are nominal.
†
COMPONENT COUNT
Transistors
Diodes
Resistors
epi-FET
JFET
13
2
10
1
2
†
Includes all bias and trim circuitry
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TL070
JFET-INPUT
OPERATIONAL AMPLIFIER
SLOS121A – NOVEMBER 1993 – REVISED AUGUST 1994
†
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
Supply voltage, V
(see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –18 V
CC+
CC–
Differential input voltage, V (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±30 V
ID
Input voltage, V (see Notes 1 and 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±15 V
I
Duration of short-circuit current (see Note 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . unlimited
Continuous total dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table
Operating free-air temperature range, T : C suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
A
I suffix
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to 85°C
M suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55°C to 125°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
†
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 the midpoint between V
and V
.
CC +
CC –
2. Differential voltages are at IN+ with respect to IN–.
3. The magnitude of the input voltage must never exceed the magnitude of the supply voltage or 15 V, whichever is less.
4. The output may be shorted to ground or to either supply. Temperature and/or supply voltages must be limited to ensure that the
dissipation rating is not exceeded.
DISSIPATION RATING TABLE
T
≤ 25°C
DERATING
FACTOR
DERATE
ABOVE T
T
= 70°C
T
= 85°C
T = 125°C
A
A
A
A
PACKAGE
POWER RATING
POWER RATING POWER RATING POWER RATING
A
D
P
680 mW
5.8 mW/°C
8.0 mW/°C
4.2 mW/°C
33°C
65°C
70°C
464 mW
640 mW
336 mW
377 mW
520 mW
N/A
145 mW
200 mW
N/A
680 mW
PW
525 mW
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TL070
JFET-INPUT
OPERATIONAL AMPLIFIER
SLOS121A – NOVEMBER 1993 – REVISED AUGUST 1994
electrical characteristics, V
= ±15 V (unless otherwise noted)
±
CC
TL070C
TYP
3
†
T
A
PARAMETER
UNIT
TEST CONDITIONS
MIN
MAX
10
25°C
V
Input offset voltage
V
V
V
= 0,
= 0,
= 0
R
R
= 50 Ω
mV
IO
O
O
O
S
S
Full range
13
Temperature coefficient of input offset
voltage
α
= 50 Ω Full range
18
5
µV/°C
VIO
25°C
Full range
25°C
100
10
pA
nA
pA
nA
I
IO
Input offset current
65
200
7
‡
I
IB
V
O
= 0
Input bias current
Full range
–12
to
15
V
V
Common-mode input voltage range
Maimum peak output voltage swing
25°C
25°C
±11
V
ICR
R
R
R
= 10 kΩ
≥ 10 kΩ
≥ 2 kΩ
±12 ±13.5
±12
L
L
V
OM
Full range
±10
L
25°C
Full range
25°C
25
15
200
3
Large-signal differential voltage
amplification
V
R
= ±10 V,
≥ 2 kΩ
O
L
A
V/mV
VD
B
1
Unity-gain bandwidth
Input resistance
MHz
12
10
25°C
Ω
r
i
V
R
= V
= 50 Ω
min,
V
V
= 0,
IC
S
ICR
O
CMRR
Common-mode rejection ratio
Supply voltage rejection ratio
25°C
70
70
100
100
dB
dB
V
R
= ±9 V to ±15 V,
= 50 Ω
= 0,
CC
O
k
25°C
SVR
(∆V
CC±
/∆V
IO
)
S
I
Supply current
Crosstalk attenuation
V
= 0,
No load
25°C
25°C
1.4
2.5
mA
dB
CC
O
V
/V
A
VD
= 100
120
O1 O2
†
‡
All characteristics are measured under open-loop conditions with zero common-mode voltage unless otherwise specified. Full range for T is
A
0°C to 70°C.
Input bias currents of a FET-input operational amplifier are normal junction reverse currents, which are temperature sensitive as shown in
Figure 5. Pulse techniques must be used that will maintain the junction temperature as close to the ambient temperature as possible.
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TL070
JFET-INPUT
OPERATIONAL AMPLIFIER
SLOS121A – NOVEMBER 1993 – REVISED AUGUST 1994
electrical characteristics, V
= ±15 V (unless otherwise noted)
±
CC
TL070I
TYP
3
†
T
A
PARAMETER
UNIT
TEST CONDITIONS
MIN
MAX
10
25°C
V
Input offset voltage
V
V
V
= 0,
= 0,
= 0
R
R
= 50 Ω
mV
IO
O
O
O
S
S
Full range
13
Temperature coefficient of input offset
voltage
α
= 50 Ω Full range
18
5
µV/°C
VIO
25°C
Full range
25°C
100
10
pA
nA
pA
nA
I
IO
Input offset current
65
200
20
‡
I
IB
V
O
= 0
Input bias current
Full range
–12
to
15
V
V
Common-mode input voltage range
Maximum peak output voltage swing
25°C
±11
V
ICR
R
R
R
= 10 kΩ
≥ 10 kΩ
≥ 2 kΩ
25°C
±12 ±13.5
±12
L
L
L
V
OM
Full range
±10
25°C
Full range
25°C
25
15
200
Large-signal differential voltage
amplification
V
R
= ±10 V,
≥ 2 kΩ
O
L
A
V/mV
VD
B
1
Unity-gain bandwidth
Input resistance
3
MHz
12
10
25°C
Ω
r
i
V
R
= V
= 50 Ω
min,
V
V
= 0,
IC
S
ICR
O
CMRR
Common-mode rejection ratio
Supply voltage rejection ratio
25°C
70
70
100
100
dB
dB
V
R
= ±9 V to ±15 V,
= 50 Ω
= 0
CC
O
k
25°C
SVR
(∆V
CC±
/∆V
IO
)
S
I
Supply current
Crosstalk attenuation
V
= 0,
No load
25°C
25°C
1.4
2.5
mA
dB
CC
O
V
/V
A
VD
= 100
120
O1 O2
†
‡
All characteristics are measured under open-loop conditions with zero common-mode voltage unless otherwise specified. Full range for T is
A
–40°C to 85°C.
Input bias currents of a FET-input operational amplifier are normal junction reverse currents, which are temperature sensitive as shown in
Figure 5. Pulse techniques must be used that will maintain the junction temperature as close to the ambient temperature as possible.
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TL070
JFET-INPUT
OPERATIONAL AMPLIFIER
SLOS121A – NOVEMBER 1993 – REVISED AUGUST 1994
electrical characteristics, V
= ±15 V (unless otherwise noted)
±
CC
TL070M
TYP
3
†
T
A
PARAMETER
UNIT
TEST CONDITIONS
MIN
MAX
10
25°C
V
Input offset voltage
V
V
V
= 0,
= 0,
= 0
R
R
= 50 Ω
mV
IO
O
O
O
S
S
Full range
13
Temperature coefficient of input offset
voltage
α
= 50 Ω Full range
18
5
µV/°C
VIO
25°C
Full range
25°C
100
20
pA
nA
pA
nA
I
IO
Input offset current
65
200
50
‡
I
IB
V
O
= 0
Input bias current
Full range
–12
to
15
V
V
Common-mode input voltage range
Maximum peak output voltage swing
25°C
±11
V
ICR
R
R
R
= 10 kΩ
≥ 10 kΩ
≥ 2 kΩ
25°C
±12 ±13.5
±12
L
L
L
V
OM
Full range
±10
25°C
≥ 2 kΩ
25
15
200
Large-signal differential voltage
amplification
A
VD
V
O
= ±10 V,
R
V/mV
L
Full range
B
Unity-gain bandwidth
Input resistance
25°C
25°C
3
MHz
1
12
10
Ω
r
i
V
R
= V
= 50 Ω
min,
V
V
= 0,
IC
S
ICR
O
CMRR
Common-mode rejection ratio
Supply voltage rejection ratio
25°C
70
70
100
100
dB
dB
V
R
= ±9 V to ±15 V,
= 50 Ω
= 0,
CC
O
k
25°C
SVR
(∆V
CC±
/∆V
IO
)
S
I
Supply current
Crosstalk attenuation
V
= 0,
No load
25°C
25°C
1.4
2.5
mA
dB
CC
O
V
/V
A
VD
= 100
120
O1 O2
†
‡
All characteristics are measured under open-loop conditions with zero common-mode voltage unless otherwise specified. Full range for T is
A
–55°C to 125°C.
Input bias currents of a FET-input operational amplifier are normal junction reverse currents, which are temperature sensitive as shown in
Figure 5. Pulse techniques must be used that will maintain the junction temperature as close to the ambient temperature as possible.
operating characteristics, V
±15 V, T = 25°C
A
±
CC =
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
V = 10 V, = 2 kΩ,
R
I
L
SR
Slew rate at unity gain
8
13
V/µs
C
= 100 pF,
See Figure 1
R = 2 kΩ,
L
L
0.1
20
µs
%
V = 20 mV,
I
t
r
Rise time overshoot factor
C
R
R
= 100 pF,
See Figure 1
L
f = 1 kHz
18
nV/√Hz
µV
V
I
Equivalent input noise voltage
Equivalent input noise current
= 20 Ω
n
S
S
f = 10 Hz to 10 kHz
f = 1 kHz
4
= 20 Ω,
0.01
pA/√Hz
n
V
R
= 10 V,
R ≤ 1 kΩ,
S
f = 1 kHz
O(rms)
≥ 2 kΩ,
THD Total harmonic distortion
0.003
%
L
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TL070
JFET-INPUT
OPERATIONAL AMPLIFIER
SLOS121A – NOVEMBER 1993 – REVISED AUGUST 1994
PARAMETER MEASUREMENT INFORMATION
10 kΩ
–
+
OUT
1 kΩ
–
+
C
=
L
V
I
V
I
100 pF
OUT
R
= 2 kΩ
L
C
= 100 pF
C
= 18 pF
R
L
L
C
Figure 1. Unity-Gain Amplifier
Figure 2. Gain-of-10 Inverting Amplifier
100 kΩ
V
CC+
C2
1 MΩ
500 pF
C1
2 MΩ
–
N1
IN–
N2
OUT
+
N1
–
COMP
IN–
IN+
OUT
+
Figure 3. Feed-Forward Compensation
Figure 4. Input Offset Voltage Null Circuit
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TL070
JFET-INPUT
OPERATIONAL AMPLIFIER
SLOS121A – NOVEMBER 1993 – REVISED AUGUST 1994
TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
I
IB
Input bias current
vs Free-air temperature
5
vs Frequency
6, 7, 8
9
10
vs Free-air temperature
vs Load resistance
vs Supply voltage
V
OM
Maximum output voltage
11
vs Free-air temperature
vs Frequency
12
14
A
VD
Large-signal differential voltage amplification
A
Differential voltage amplification
Phase shift
vs Frequency
13
14
15
15
16
VD
vs Frequency
Normalized unity-gain bandwidth
Normalized phase shift
vs Free-air temperature
vs Free-air temperature
vs Free-air temperature
CMRR
Common-mode rejection ratio
vs Supply voltage
vs Free-air temperature
17
18
I
Supply current
CC
P
Total power dissipation
Normalized slew rate
vs Free-air temperature
vs Free-air temperature
vs Frequency
19
20
21
D
V
n
Equivalent input noise voltage
THD
Total harmonic distortion
Large-signal pulse response
Output voltage
vs Frequency
vs Time
22
23
24
V
O
vs Elapsed time
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TL070
JFET-INPUT
OPERATIONAL AMPLIFIER
SLOS121A – NOVEMBER 1993 – REVISED AUGUST 1994
†
TYPICAL CHARACTERISTICS
INPUT BIAS CURRENT
vs
MAXIMUM PEAK OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
FREQUENCY
100
10
±15
±12.5
±10
±7.5
±5
R
= 2 kΩ
= 25°C
V
CC±
= ±15 V
L
V
= ±15 V
CC±
T
A
See Figure 2
V
CC±
= ±10 V
1
V
= ±5 V
CC±
0.1
±2.5
0
0.01
–75 –50 –25
0
25
50
75 100 125
100
1 k
10 k
100 k
1 M
10 M
T
A
– Free-Air Temperature – °C
f – Frequency – Hz
Figure 5
Figure 6
MAXIMUM PEAK OUTPUT VOLTAGE
MAXIMUM PEAK OUTPUT VOLTAGE
vs
vs
FREQUENCY
FREQUENCY
±15
±12.5
±10
±7.5
±5
±15
±12.5
±10
±7.5
±5
V
R
= ±15 V
R
T
= 2 kΩ
= 25°C
CC±
= 2 kΩ
L
A
L
T
= 25°C
V
= ±15 V
= ±10 V
A
CC±
See Figure 2
See Figure 2
T
A
= –55°C
V
CC±
T
= 125°C
A
V
CC±
= ±5 V
±2.5
0
±2.5
0
100
1 k
10 k
100 k
1 M
10 M
10 k
40 k 100 k
400 k 1 M
4 M 10 M
f – Frequency – Hz
f – Frequency – Hz
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. An 18-pF
compensation capacitor is used.
9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TL070
JFET-INPUT
OPERATIONAL AMPLIFIER
SLOS121A – NOVEMBER 1993 – REVISED AUGUST 1994
†
TYPICAL CHARACTERISTICS
MAXIMUM PEAK OUTPUT VOLTAGE
MAXIMUM PEAK OUTPUT VOLTAGE
vs
vs
FREE-AIR TEMPERATURE
±15
LOAD RESISTANCE
±15
±12.5
±10
±7.5
±5
R
= 10 kΩ
V
= ±15 V
L
CC±
= 25°C
T
A
±12.5
±10
±7.5
±5
See Figure 2
R
= 2 kΩ
L
±2.5
0
±2.5
0
V
= ±15 V
CC±
See Figure 2
–75 –50 –25
0
25
50
75 100 125
0.1
0.2
0.4 0.7
1
2
4
7 10
T
A
– Free-Air Temperature – °C
R
– Load Resistance – kΩ
L
Figure 9
Figure 10
LARGE-SIGNAL
DIFFERENTIAL VOLTAGE AMPLIFICATION
MAXIMUM PEAK OUTPUT VOLTAGE
VS
vs
FREE-AIR TEMPERATURE
SUPPLY VOLTAGE
1000
±15
±12.5
±10
±7.5
±5
R
T
= 10 kΩ
= 25°C
L
A
400
200
100
40
20
10
4
2
1
V
V
R
= ±15 V
CC±
= ±10 V
±2.5
0
O
= 2 kΩ
L
–75 –50 –25
0
25
50
75 100 125
0
2
4
6
8
10
12
14
16
T
A
– Free-Air Temperature – °C
|V | – Supply Voltage – V
CC±
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. An 18-pF
compensation capacitor is used.
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TL070
JFET-INPUT
OPERATIONAL AMPLIFIER
SLOS121A – NOVEMBER 1993 – REVISED AUGUST 1994
†
TYPICAL CHARACTERISTICS
LARGE-SIGNAL
DIFFERENTIAL VOLTAGE AMPLIFICATION
AND PHASE SHIFT
DIFFERENTIAL VOLTAGE AMPLIFICATION
vs
FREQUENCY WITH FEED-FORWARD
COMPENSATION
vs
FREQUENCY
6
5
4
3
2
1
6
5
4
3
2
1
10
10
10
10
10
10
10
10
10
10
10
10
V
= ±5 V to ±15 V
V
= ±15 V
CC±
= 2 kΩ
= 25°C
CC±
C2 = 3 pF
= 25°C
R
T
L
T
A
A
See Figure 3
0°
Differential
Voltage
Amplification
(left scale)
45°
90°
135°
180°
Phase Shift
(right scale)
1
100
1
1 k
10 k
100 k
1 M
10 M
1
10
100
1 k
10 k 100 k 1 M 10 M
f – Frequency – Hz
f – Frequency – Hz
Figure 13
Figure 14
NORMALIZED UNITY-GAIN BANDWIDTH
AND PHASE SHIFT
COMMON-MODE REJECTION RATIO
vs
vs
FREE-AIR TEMPERATURE
FREE-AIR TEMPERATURE
1.03
89
88
87
86
85
84
83
1.3
V
= ±15 V
CC±
= 10 kΩ
R
L
Unity-Gain Bandwidth
(left scale)
1.02
1.01
1.2
1.1
1
Phase
Shift
(right scale)
1
0.99
0.9
0.8
0.7
V
= ±15 V
CC±
= 2 kΩ
0.98
0.97
R
L
f = B for Phase Shift
1
–75 –50 –25
0
25
50
75
100 125
–75 –50 –25
0
25
50
75
100 125
T
A
– Free-Air Temperature – °C
T
A
– Free-Air Temperature – °C
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. An 18-pF
compensation capacitor is used.
11
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TL070
JFET-INPUT
OPERATIONAL AMPLIFIER
SLOS121A – NOVEMBER 1993 – REVISED AUGUST 1994
†
TYPICAL CHARACTERISTICS
SUPPLY CURRENT
vs
SUPPLY CURRENT
vs
SUPPLY VOLTAGE
FREE-AIR TEMPERATURE
2
1.8
1.6
1.4
1.2
1
2
1.8
1.6
1.4
1.2
1
V
= ±15 V
CC±
T
= 25°C
A
No Signal
No Load
No Signal
No Load
0.8
0.6
0.4
0.2
0
0.8
0.6
0.4
0.2
0
0
2
4
6
8
10
12
14
16
–75 –50 –25
0
25
50
75
100 125
|V | – Supply Voltage – V
CC±
T
A
– Free-Air Temperature – °C
Figure 17
Figure 18
TOTAL POWER DISSIPATED
vs
NORMALIZED SLEW RATE
vs
FREE-AIR TEMPERATURE
FREE-AIR TEMPERATURE
100
75
1.15
1.10
1.05
1
V
= ±15 V
V
R
C
= ±15 V
= 2 kΩ
= 100 pF
CC±
CC±
L
L
No Signal
No Load
50
0.95
0.90
0.85
25
0
–75 –50 –25
0
25
50
75
100 125
–75 –50 –25
0
25
50
75
100 125
T
A
– Free-Air Temperature – °C
T
A
– Free-Air Temperature – °C
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. An 18-pF
compensation capacitor is used.
12
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TL070
JFET-INPUT
OPERATIONAL AMPLIFIER
SLOS121A – NOVEMBER 1993 – REVISED AUGUST 1994
TYPICAL CHARACTERISTICS
TOTAL HARMONIC DISTORTION
EQUIVALENT INPUT NOISE VOLTAGE
vs
vs
FREQUENCY
FREQUENCY
1
50
40
30
20
10
0
V
A
= ±15 V
CC±
= 10
V
A
V
= ±15 V
CC±
= 1
VD
VD
I (RMS)
= 25°C
0.4
R
= 20 Ω
= 25°C
S
= 6 V
T
A
T
A
0.1
0.04
0.01
0.004
0.001
100
400
1 k
4 k 10 k
40 k 100 k
10
40 100
400 1 k
4 k 10 k 40 k 100 k
f – Frequency – Hz
f – Frequency – Hz
Figure 21
Figure 22
OUTPUT VOLTAGE
vs
ELAPSED TIME
VOLTAGE-FOLLOWER
LARGE-SIGNAL PULSE RESPONSE
6
4
2
0
28
24
20
16
12
8
V
R
= ±15 V
= 2 kΩ
CC±
L
C
T
A
= 100 pF
= 25°C
L
Overshoot
Output
90%
–2
4
Input
10%
V
= ±15 V
CC±
= 2 kΩ
–4
–6
R
T
0
L
t
r
= 25°C
A
–4
0
0.5
1
1.5
2
2.5
3
3.5
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7
t – Time – µs
t – Elasped Time – µs
Figure 23
Figure 24
13
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TL070
JFET-INPUT
OPERATIONAL AMPLIFIER
SLOS121A – NOVEMBER 1993 – REVISED AUGUST 1994
APPLICATION INFORMATION
220 kΩ
0.00375 µF
10 kΩ
0.003 µF
0.03 µF
0.03 µF
27 kΩ
MIN
MIN
0.01 µF
1 µF
V
V
CC+
CC+
100 kΩ
Treble
MAX
100 kΩ
Bass
MAX
–
–
10 kΩ
3.3 kΩ
100 Ω
TL070
Output
TL070
+
+
Input
10 kΩ
0.003 µF
V
CC–
V
CC–
Balance
5 kΩ
+
47 kΩ
50 pF
68 kΩ
100 Ω
Gain
10 pF
10 pF
47 µF
75 µF
+
Figure 25. IC Preamplifier
IC PREAMPLIFIER
RESPONSE CHARACTERISTICS
25
20
MAX
Treble
MAX Bass
V
= ±15 V
CC±
= 25°C
15
T
A
See Figure 25
10
5
0
–5
–10
–15
–20
–25
MIN
Treble
MIN Bass
20
40 100 200 400
1 k 2 k 4 k 10 k 20 k
f – Frequency – Hz
Figure 26
14
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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