®
2
OPA128
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes
no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant
any BURR-BROWN product for use in life support devices and/or systems.
SPECIFICATIONS
ELECTRICAL
At V
CC
= ±15VDC and T
A
= +25°C, unless otherwise noted. Pin 8 connected to ground.
OPA128JM OPA128KM OPA128LM OPA128SM
PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
INPUT
BIAS CURRENT
(1)
Input Bias Current V
CM
= 0VDC,
R
L
≥ 10kΩ±150 ±300 ±75 ±150 ±40 ±75 ±75 ±150 fA
OFFSET CURRENT
(1)
Input Offset Current V
CM
= 0VDC,
R
L
≥ 10kΩ 65 30 30 30 fA
OFFSET VOLTAGE
(1)
Input Offset Voltage V
CM
= 0VDC ±260 ±1000 ±140 ±500 ±140 ±500 ±140 ±500 µV
Average Drift T
A
= T
MIN
to T
MAX
±20 ±10 ±5 ±10 µV/°C
Supply Rejection 80 120 90 120 90 120 90 120 dB
±1 ±100 ±1 ±32 ±1 ±32 ±1 ±32 µV/V
NOISE
Voltage: f
O
= 10Hz 92 92 92 92 nV/√Hz
f
O
= 100Hz 78 78 78 78 nV/√Hz
f
O
= 1kHz 27 27 27 27 nV/√Hz
f
O
= 10kHz 15 15 15 15 nV/√Hz
f
B
= 10Hz to 10kHz 2.4 2.4 2.4 2.4 µVrms
f
B
= 0.1Hz to 10Hz 4444µVp-p
Current: f
B
= 0.1Hz to 10Hz 4.2 3 2.3 3 fA, p-p
f
O
= 0.1Hz to 20kHz 0.22 0.16 0.12 0.16 fA/√Hz
IMPEDANCE
Differential 10
13
|| 1 10
13
|| 1 10
13
|| 1 10
13
|| 1 Ω || pF
Common-Mode 10
15
|| 2 10
15
|| 2 10
15
|| 2 10
15
|| 2 Ω || pF
VOLTAGE RANGE
(4)
Common-Mode Input Range ±10 ±12 ±10 ±12 ±10 ±12 ±10 ±12 V
Common-Mode Rejection V
IN
= ±10VDC 80 118 90 118 90 118 90 118 dB
OPEN-LOOP GAIN, DC
Open-Loop Voltage Gain R
L
≥ 2kΩ 94 128 110 128 110 128 110 128 dB
FREQUENCY RESPONSE
Unity Gain, Small Signal
(2)
0.5 1 0.5 1 0.5 1 0.5 1 MHz
Full Power Response 20Vp-p, R
L
= 2kΩ 47 47 47 47 kHz
Slew Rate V
O
= ±10V, R
L
= 2kΩ 0.53131313V/µs
Settling Time, 0.1% Gain = –1, R
L
= 2kΩ 5555µs
0.01% 10V Step 10 10 10 10 µs
Overload Recovery,
50% Overdrive
(3)
Gain = –1 5555µs
RATED OUTPUT
Voltage Output R
L
= 2kΩ±10 ±13 ±10 ±13 ±10 ±13 ±10 ±13 V
Current Output V
O
= ±10VDC ±5 ±10 ±5 ±10 ±5 ±10 ±5 ±10 mA
Output Resistance DC, Open Loop 100 100 100 100 Ω
Load Capacitance Stability Gain = +1 1000 1000 1000 1000 pF
Short Circuit Current 10 34 55 10 34 55 10 34 55 10 34 55 mA
POWER SUPPLY
Rated Voltage ±15 ±15 ±15 ±15 VDC
Voltage Range,
Derated Performance ±5 ±18 ±5 ±18 ±5 ±18 ±5 ±18 VDC
Current, Quiescent I
O
= 0mADC 0.9 1.5 0.9 1.5 0.9 1.5 0.9 1.5 mA
TEMPERATURE RANGE
Specification Ambient Temp. 0 +70 0 +70 0 +70 –55 +125 °C
Operating Ambient Temp. –55 +125 –55 +125 –55 +125 –55 +125 °C
Storage Ambient Temp. –65 +150 –65 +150 –65 +150 –65 +150 °C
θ
Junction-Ambient 200 200 200 200 °C/W
NOTES: (1) Offset voltage, offset current, and bias current are measured with the units fully warmed up. Bias current doubles approximately every 11°C. (2) Sample
tested. (3) Overload recovery is defined as the time required for the output to return from saturation to linear operation following the removal of a 50% input overdrive.
(4) If it is possible for the input voltage to exceed the supply voltage, a series protection resistor should be added to limit input current to 0.5mA. The input devices
can withstand overload currents of 0.3mA indefinitely without damage.
