OPA314 Datasheet, PDF (3/35 Pages) Texas Instruments – 3-MHz, Low-Power, Low-Noise, RRI/O, 1.8-V CMOS OPERATIONAL AMPLIFIER

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OPA314
OPA2314
OPA4314
SBOS563D – MAY 2011 – REVISED MARCH 2012
ELECTRICAL CHARACTERISTICS: V_S = +1.8 V to +5.5 V⁽¹⁾
Boldface limits apply over the specified temperature range: T_A = –40°C to +125°C.
At T_A = +25 °C, R_L = 10 kΩ connected to V_S/2, V_CM = V_S/2, and V_OUT = V_S/2, unless otherwise noted.
OPA314, OPA2314, OPA4314
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
OFFSET VOLTAGE
V_OS
dV_OS/dT
PSRR
Input offset voltage
vs Temperature
vs power supply
Over temperature
V_CM = (V_S+) – 1.3 V
V_CM = (V_S+) – 1.3 V
0.5
2.5
1
78
92
74
Channel separation, dc
At dc
10
INPUT VOLTAGE RANGE
V_CM
CMRR
Common-mode voltage range
Common-mode rejection ratio
Over temperature
INPUT BIAS CURRENT
V_S = 1.8 V to 5.5 V, (V_S–) – 0.2 V < V_CM < (V_S+) – 1.3 V
V_S = 5.5 V, V_CM = –0.2 V to 5.7 V⁽²⁾
V_S = 1.8 V, (V_S–) – 0.2 V < V_CM < (V_S+) – 1.3 V
V_S = 5.5 V, (V_S–) – 0.2 V < V_CM < (V_S+) – 1.3 V
V_S = 5.5 V, V_CM = –0.2 V to 5.7 V⁽²⁾
(V–) – 0.2
75
66
70
73
60
(V+) + 0.2
96
80
86
90
I_B
Input bias current
Over temperature
±0.2
±10
±600
I_OS
Input offset current
Over temperature
±0.2
±10
±600
NOISE
Input voltage noise (peak-to-
peak)
f = 0.1 Hz to 10 Hz
5
f = 10 kHz
13
e_n
Input voltage noise density
f = 1 kHz
14
i_n
Input current noise density
f = 1 kHz
5
INPUT CAPACITANCE
Differential
C_IN
Common-mode
V_S = 5.0 V
V_S = 5.0 V
1
5
OPEN-LOOP GAIN
A_OL
Open-loop voltage gain
Over temperature
Phase margin
V_S = 1.8 V, 0.2 V < V_O < (V+) – 0.2 V, R_L = 10 kΩ
V_S = 5.5 V, 0.2 V < V_O < (V+) – 0.2 V, R_L = 10 kΩ
V_S = 1.8 V, 0.5 V < V_O < (V+) – 0.5 V, R_L = 2 kΩ ⁽²⁾
V_S = 5.5 V, 0.5 V < V_O < (V+) – 0.5 V, R_L = 2 kΩ ⁽²⁾
V_S = 5.5 V, 0.2 V < V_O < (V+) – 0.2 V, R_L = 10 kΩ
V_S = 5.5 V, 0.5 V < V_O < (V+) – 0.2 V, R_L = 2 kΩ
V_S = 5.0 V, G = +1, R_L = 10 kΩ
90
115
100
128
90
100
94
110
90
110
100
65
UNIT
mV
μV/°C
dB
dB
µV/V
V
dB
dB
dB
dB
dB
pA
pA
pA
pA
μV_PP
nV/√Hz
nV/√Hz
fA/√Hz
pF
pF
dB
dB
dB
dB
dB
dB
deg
(1) Parameters with minimum or maximum specification limits are 100% production tested at +25ºC, unless otherwise noted. Over
temperature limits are based on characterization and statistical analysis.
(2) Specified by design and characterization; not production tested.
Copyright © 2011–2012, Texas Instruments Incorporated
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