Datasheet
OPA2180
OPA4180
www.ti.com
SBOS584C –NOVEMBER 2011–REVISED DECEMBER 2012
ELECTRICAL CHARACTERISTICS: V
S
= ±2 V to ±18 V (V
S
= +4 V to +36 V)
At T
A
= +25°C, R
L
= 10 kΩ connected to V
S
/2, and V
COM
= V
OUT
= V
S
/2, unless otherwise noted.
OPA2180, OPA4180
PARAMETER CONDITIONS MIN TYP MAX UNIT
OFFSET VOLTAGE
V
OS
Input offset voltage 15 75 μV
dV
OS
/dT Input offset voltage drift T
A
= –40°C to +105°C 0.1 0.35 μV/°C
V
S
= 4 V to 36 V, V
CM
= V
S
/2 0.1 0.5 μV/V
PSRR Power-supply rejection ratio
T
A
= –40°C to +105°C,
0.5 μV/V
V
S
= 4 V to 36 V, V
CM
= V
S
/2
See
Long-term stability μV
note
(1)
Channel separation, dc 1 μV/V
INPUT BIAS CURRENT
OPA2180 ±0.25 ±1 nA
OPA2180, T
A
= –40°C to +105°C ±5 nA
I
B
Input bias current
OPA4180 ±0.25 ±1.7 nA
OPA4180, T
A
= –40°C to +105°C ±6 nA
OPA2180 ±0.5 ±2 nA
OPA2180, T
A
= –40°C to +105°C ±2.5 nA
I
OS
Input offset current
OPA4180 ±3.4 nA
OPA4180, T
A
= –40°C to +105°C ±3 nA
NOISE
Input voltage noise f = 0.1 Hz to 10 Hz 0.25 μV
PP
e
n
Input voltage noise density f = 1 kHz 10 nV/Hz
i
n
Input current noise density f = 1 kHz 10 fA/Hz
INPUT VOLTAGE RANGE
V
CM
Common-mode voltage range V– (V+) – 1.5 V
(V–) < V
CM
< (V+) – 1.5 V 104 114 dB
CMRR Common-mode rejection ratio
T
A
= –40°C to +105°C,
100 104 dB
(V–) + 0.5 V < V
CM
< (V+) – 1.5 V
INPUT IMPEDANCE
Differential 100/6 MΩ/pF
Common-mode 6/9.5
10
12
Ω/pF
OPEN-LOOP GAIN
(V–) + 500 mV < V
O
< (V+) – 500 mV, R
L
= 10 kΩ 110 120 dB
A
OL
Open-loop voltage gain
T
A
= –40°C to +105°C,
104 114 dB
(V–) + 500 mV < V
O
< (V+) – 500 mV, R
L
= 10 kΩ
FREQUENCY RESPONSE
GBW Gain-bandwidth product 2 MHz
SR Slew rate G = +1 0.8 V/μs
0.1% V
S
= ±18 V, G = 1, 10-V step 22 μs
Settling time
0.01% V
S
= ±18 V, G = 1, 10-V step 30 μs
Overload recovery time V
IN
× G = V
S
1 μs
THD+N Total harmonic distortion + noise f = 1 kHz, G = 1, V
OUT
= 1 V
RMS
0.0001 %
(1) 1000-hour life test at +125°C demonstrated randomly distributed variation in the range of measurement limits, or approximately 4 μV.
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