OPA378_15 Datasheet, PDF (3/29 Pages) Texas Instruments – Low-Noise, 900kHz, RRIO,Precision OPERATIONAL AMPLIFIER Zerø-Drift Series

OPA378
OPA2378
www.ti.com
SBOS417D – JANUARY 2008 – REVISED OCTOBER 2009
ELECTRICAL CHARACTERISTICS: V_S = +2.2V to +5.5V
Boldface limits apply over the specified temperature range, T_A = –40°C to +125°C.
At T_A = +25°C, R_L = 10kΩ connected to V_S/2, V_CM = V_S/2, and V_OUT = V_S/2, unless otherwise noted.
OPA378, OPA2378
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
OFFSET VOLTAGE
Input Offset Voltage, OPA378
vs Temperature
Input Offset Voltage, OPA2378
V_OS
dV_OS/dT
V_CM = V–
20
50
0.1
0.25
20
70
vs Temperature
dV_OS/dT
-40°C to +125°C
–40°C to +85°C
0.25
0.4
0.15
0.25
vs Power Supply, OPA378
over Temperature
vs Power Supply, OPA2378
over Temperature
Channel Separation (Dual Version)
PSRR
V_CM = 0V, V_S = +2.2V to +5.5V
V_CM = 0V, V_S = +2.2V to +5.5V
V_CM = 0V, V_S = +2.2V to +5.5V
V_CM = 0V, V_S = +2.2V to +5.5V
At dc
1.5
5
3
8
10
3
13
135
INPUT BIAS CURRENT
Input Bias Current, OPA378
I_B
Input Bias Current, OPA2378
±150
±150
±550
±670
over Temperature, OPA378 and OPA2378
±2
Input Offset Current, OPA378
I_OS
Input Offset Current, OPA2378
±0.3
±1.1
±0.3
±1.34
NOISE
Input Voltage Noise
e_n
f = 0.1Hz to 10Hz, V_S = +5.5V
0.4
Input Voltage Noise Density
e_n
f = 1kHz
20
Input Current Noise
i_n
f = 10Hz
200
INPUT VOLTAGE RANGE
Common-Mode Voltage Range
Common-Mode Rejection Ratio
over Temperature
INPUT CAPACITANCE
V_CM
(V–) – 0.05
(V+) + 0.05
CMRR (V–) – 0.05V < V_CM < (V+) + 0.05V, V_S = 5.5V
100
112
(V–) – 0.05V < V_CM < (V+) + 0.05V, V_S = 2.2V
94
106
(V–) – 0.05V < V_CM < (V+) + 0.05V, V_S = 5.5V
96
(V–) – 0.05V < V_CM < (V+) + 0.05V, V_S = 2.2V
90
Differential
C_IN
4
Common-Mode
5
OPEN-LOOP GAIN
Open-Loop Voltage Gain
over Temperature
FREQUENCY RESPONSE
A_OL
50mV < V_O < (V+) – 50mV, R_L = 100kΩ
110
134
100mV < V_O < (V+) – 100mV, R_L = 10kΩ
110
130
100mV < V_O < (V+) – 100mV, R_L = 10kΩ
106
Gain-Bandwidth Product
GBW
900
Slew Rate
SR
G = +1
0.4
Settling Time 0.1%
Settling Time 0.01%
Overload Recovery Time
THD + Noise
t_S
t_S
THD + N
V_S = 5.5V, 2V Step, G = +1
V_S = 5.5V, 2V Step, G = +1
V_IN × Gain > V_S
V_S = 5V, V_O = 3V_PP, G = +1, f = 1kHz
7
9
4
0.003
UNIT
μV
μV/°C
µV
µV/°C
µV/°C
μV/V
μV/V
μV/V
μV/V
dB
pA
pA
nA
nA
nA
μV_PP
nV/√Hz
fA/√Hz
V
dB
dB
dB
dB
pF
pF
dB
dB
dB
kHz
V/μs
μs
μs
μs
%
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Product Folder Link(s): OPA378 OPA2378
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