Datasheet

OPA140
OPA2140, OPA4140
www.ti.com SBOS498A –JULY 2010–REVISED AUGUST 2010
ELECTRICAL CHARACTERISTICS: V
S
= +4.5V to +36V; ±2.25V to ±18V
Boldface limits apply over the specified temperature range, T
A
= –40°C to +125°C.
At T
A
= +25°C, R
L
= 2kΩ connected to midsupply, V
CM
= V
OUT
= midsupply, unless otherwise noted.
OPA140, OPA2140, OPA4140
PARAMETER CONDITIONS MIN TYP MAX UNIT
OFFSET VOLTAGE
Offset Voltage, RTI V
OS
V
S
= ±18V 30 120 mV
Over Temperature V
S
= ±18V 220 mV
Drift dV
OS
/dT V
S
= ±18V ±0.35 1.0 mV/°C
vs Power Supply PSRR V
S
= ±2.25V to ±18V ±0.1 ±0.5 mV/V
xxxOver Temperature V
S
= ±2.25V to ±18V ±4 mV/V
INPUT BIAS CURRENT
(1)
Input Bias Current I
B
±0.5 ±10 pA
Over Temperature ±3 nA
Input Offset Current I
OS
±0.5 ±10 pA
Over Temperature ±1 nA
NOISE
Input Voltage Noise
f = 0.1Hz to 10Hz 250 nV
PP
f = 0.1Hz to 10Hz 42 nV
RMS
Input Voltage Noise Density e
n
f = 10Hz 8 nV/√Hz
f = 100Hz 5.8 nV/√Hz
f = 1kHz 5.1 nV/√Hz
Input Current Noise Density I
n
f = 1kHz 0.8 fA/√Hz
INPUT VOLTAGE RANGE
Common-Mode Voltage Range V
CM
(V–) –0.1 (V+)–3.5 V
V
S
= ±18V, V
CM
= (V–) –0.1V
Common-Mode Rejection Ratio CMRR 126 140 dB
to (V+) – 3.5V
V
S
= ±18V, V
CM
= (V–) –0.1V
Over Temperature 120 dB
to (V+) – 3.5V
INPUT IMPEDANCE
Differential 10
13
|| 10 Ω || pF
Common-Mode V
CM
= (V–) –0.1V to (V+) –3.5V 10
13
|| 7 Ω || pF
OPEN-LOOP GAIN
V
O
= (V–)+0.35V to (V+)–0.35V, R
L
=
Open-Loop Voltage Gain A
OL
120 126 dB
10kΩ
V
O
= (V–)+0.35V to (V+)–0.35V, R
L
= 2kΩ 114 126 dB
Over Temperature V
O
= (V–)+0.35V to (V+)–0.35V, R
L
= 2kΩ 108 dB
FREQUENCY RESPONSE
Gain Bandwidth Product BW 11 MHz
Slew Rate 20 V/ms
Settling Time, 12-bit (0.024) 880 ns
Settling Time, 16-bit 1.6 ms
THD+N 1kHz, G = 1, V
O
= 3.5V
RMS
0.00005 %
Overload Recovery Time 600 ns
(1) High-speed test, T
A
= T
J
.
Copyright © 2010, Texas Instruments Incorporated 3
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