OPA314-Q1 Datasheet, PDF (10/38 Pages) Texas Instruments – 3-MHz, Low-Power, Low-Noise, RRIO, 1.8-V CMOS Operational Amplifier

OPA314-Q1, OPA2314-Q1, OPA4314-Q1
SLOS896B – DECEMBER 2014 – REVISED JANUARY 2017
www.ti.com
6.7 Electrical Characteristics
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, V_S = 1.8 V to 5.5 V, unless otherwise noted.
The phrase overtemperature refers to values over the specified temperature range of T_A = –40°C to 125°C.⁽¹⁾
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
OFFSET VOLTAGE
V_OS
dV_OS/dT
Input offset voltage
Input offset voltage vs
temperature
V_CM = (V_S+) – 1.3 V
0.5
2.5
mV
1
μV/°C
PSRR
vs power supply
Input offset voltage
overtemperature
V_CM = (V_S+) – 1.3 V
78
92
dB
74
dB
Channel separation, DC
At DC
10
µV/V
INPUT VOLTAGE RANGE
V_CM
Common-mode voltage
range
(V–) – 0.2
(V+) + 0.2
V
CMRR
Common-mode rejection
ratio
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⁾
75
96
66
80
dB
dB
Common-mode rejection
ratio overtemperature
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⁾
70
86
dB
73
90
dB
60
dB
INPUT BIAS CURRENT
I_B
Input bias current
Input bias current
overtemperature
±0.2
±10
pA
±600
pA
I_OS
Input offset current
Input offset current
overtemperature
±0.2
±10
pA
±600
pA
NOISE
Input voltage noise (peak-
to-peak)
f = 0.1 Hz to 10 Hz
5
μV_PP
f = 10 kHz
e_n
Input voltage noise density
f = 1 kHz
13
nV/√Hz
14
nV/√Hz
i_n
Input current noise density f = 1 kHz
5
fA/√Hz
(1) Parameters with minimum or maximum specification limits are 100% production tested at 25ºC, unless otherwise noted.
Overtemperature limits are based on characterization and statistical analysis.
(2) Specified by design and characterization; not production tested.
10
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