OPA189 Datasheet, PDF (9/34 Pages) Texas Instruments – Precision, 36-V, 14-MHz, MUX-Friendly Low-Noise, Rail-to-Rail Output, Zero-Drift Operational Amplifiers

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OPA189, OPA2189, OPA4189
SBOS830 – JUNE 2017
7.7 Electrical Characteristics
at T_A = 25°C, V_CM = V_OUT = V_S / 2, and R_LOAD = 10 kΩ connected to V_S / 2 (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
OFFSET VOLTAGE
V_OS
dV_OS/dT
PSRR
Input offset voltage
Input offset voltage drift
Power-supply rejection
ratio
T_A = –40°C to 125°C
T_A = –40°C to 125°C
T_A = –40°C to 125°C
±0.4
±0.0035
±0.005
INPUT BIAS CURRENT
±70
I_B
Input bias current
R_IN = 100 kΩ
T_A = –20°C to 85°C
T_A = –40°C to 125°C
±140
I_OS
NOISE
Input offset current
T_A = –20°C to 85°C
T_A = –40°C to 125°C
17
E_N
Input voltage noise
f = 0.1 Hz to 10 Hz
0.11
f = 10 Hz
5.8
f = 100 Hz
5.8
e_N
Input voltage noise density
f = 1 kHz
5.8
f = 10 kHz
5.8
I_N
Input current noise density f = 1 kHz
165
INPUT VOLTAGE
V_CM
Common-mode voltage
range
(V–) – 0.1
CMRR
Common-mode rejection
ratio
INPUT IMPEDANCE
(V–) – 0.1 V ≤ V_CM ≤ (V+) – 2.5 V
(V–) – 0.1 V ≤ V_CM ≤ (V+) – 2.5 V
T_A = –40°C to 125°C
V_S = ±2.25 V
V_S = ±18 V
V_S = ±18 V
V_S = ±2.25 V
120
140
146
168
144
156
116
130
z_id
Differential input
impedance
100 || 2
z_ic
Common-mode input
impedance
60 || 4
OPEN-LOOP GAIN
V_S = ±18 V, (V–) + 0.3 V < V_O < (V+) – 0.3 V, R_LOAD = 10 kΩ
V_S = ±18 V, (V–) + 0.3 V < V_O < (V+) – 0.3 V, R_LOAD = 10 kΩ
A_OL
Open-loop voltage gain
T_A = –40°C to 125°C
V_S = ±18 V, (V–) + 0.6 V < V_O < (V+) – 0.6 V, R_LOAD = 2 kΩ
V_S = ±18 V, (V–) + 0.6 V < V_O < (V+) – 0.6 V, R_LOAD = 2 kΩ
T_A = –40°C to 125°C
150
170
130
160
150
170
130
160
MAX
±2.5
±4.5
±0.02
±0.05
±300
±400
±600
±600
±800
±1200
(V+) – 2.5
UNIT
µV
µV/°C
µV/V
pA
nV_RMS
µV_PP
nV/√Hz
fA/rtHz
V
dB
MΩ || pF
TΩ || pF
dB
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