Datasheet

OPA340-EP
www.ti.com SBOS433A – AUGUST 2008–REVISED APRIL 2011
ELECTRICAL CHARACTERISTICS: V
S
= 2.7 V to 5 V
Over specified temperature range (T
A
= –55°C to 125°C), V
S
= 5 V, R
L
= 10 kΩ connected to V
S
/2, V
OUT
= V
S
/2 (unless
otherwise noted)
PARAMETER CONDITIONS MIN TYP MAX UNIT
OFFSET VOLTAGE
Input offset voltage V
OS
V
S
= 5 V T
A
= 25°C ±150 ±500 μV
T
A
= Full range ±1600 μV
vs temperature dV
OS
/dT ±2.5 μV/°C
vs power supply PSRR V
S
= 2.7 V to 5.5 V, V
CM
= 0 V 30 150 μV/V
Channel separation, dc 0.2 μV/V
INPUT BIAS CURRENT
Input bias current I
B
±0.2 ±500 pA
Input offset current I
OS
±0.2 ±600 pA
NOISE
Input voltage noise, f = 0.1 kHz to 50 8 μVrms
kHz
Input voltage noise density, f = 1 kHz e
n
25 nV/√Hz
Current noise density, f = 1 kHz i
n
3 fA/√Hz
INPUT VOLTAGE RANGE
Common-mode voltage range V
CM
–0.3 (V+) + 0.3 V
Common-mode rejection ratio CMRR –0.3 V < V
CM
< (V+) – 1.8 V T
A
= 25°C 78 92 dB
T
A
= Full range 75 dB
V
S
= 5 V, –0.3 V < V
CM
< 5.3 V T
A
= 25°C 70 84 dB
T
A
= Full range 64 dB
V
S
= 2.7 V, –0.3 V < V
CM
< 3 V T
A
= 25°C 66 80 dB
INPUT IMPEDANCE
Differential Ω ∥ pF
10
13
∥ 3
Common-mode Ω ∥ pF
10
13
∥ 6
OPEN-LOOP GAIN
Open-loop voltage gain A
OL
R
L
= 100 kΩ, 10 mV < V
O
< (V+) – 10 mV 103 124 dB
R
L
= 10 kΩ, 70 mV < V
O
< (V+) – 70 mV 98 120 dB
R
L
= 2 kΩ, 250 mV < V
O
< (V+) – 250 mV 92 114 dB
FREQUENCY RESPONSE
Gain-bandwidth product GBW G = 1 5.5 MHz
Slew rate SR V
S
= 5 V, G = 1, C
L
= 100 pF 6 V/μs
Settling time, 0.1% V
S
= 5 V, 2-V Step, C
L
= 100 pF 1 μs
Settling time, 0.01% V
S
= 5 V, 2-V Step, C
L
= 100 pF 1.6 μs
Overload recovery time V
IN
• G = V
S
0.2 μs
Total harmonic distortion + noise THD+N V
S
= 5 V, V
O
= 3 V
PP
(1)
, G = 1, f = 1 kHz 0.0007 %
(1) V
OUT
= 0.25 V to 3.25 V
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