Datasheet
OPA1S2384
OPA1S2385
www.ti.com
SBOS645A –DECEMBER 2012–REVISED JUNE 2013
ELECTRICAL CHARACTERISTICS: Amplifier Section, V
SS
= +2.7 V to +5.5 V
(1)(2)
At T
A
= +25°C, R
L
= 1 kΩ connected to V
S
/ 2, and V
O
= V
CM
= V
S
/ 2, unless otherwise noted.
OPA1S238x
PARAMETER CONDITIONS MIN TYP MAX UNIT
OFFSET VOLTAGE
V
OS
Input offset voltage 2 8 mV
ΔV
OS/
ΔT Input offset voltage vs temperature T
A
= –40°C to +85°C 6 µV/°C
PSRR Input offset voltage vs power supply V
CM
= (V
S
/ 2) – 0.65 V 0.2 0.8 mV/V
Channel separation f = 5 MHz 33 µV/V
INPUT VOLTAGE RANGE
V
CM
Common-mode voltage range No phase reversal, rail-to-rail input (V–) – 0.1 (V+) + 0.1 V
V
S
= 5.5 V, (V–) – 0.1 V < V
CM
< (V+) – 2 V 66 80 dB
CMRR Common-mode rejection ratio
V
S
= 3.3 V, (V–) – 0.1 V < V
CM
< (V+) + 0.1 V 50 68 dB
INPUT BIAS CURRENT
I
B
Input bias current ±3 ±50 pA
I
OS
Input offset current ±1 ±50 pA
NOISE
f = 1 MHz 6 nV/√Hz
Input noise voltage density
f = 10 MHz 26 nV/√Hz
Input current noise density f = 1 MHz 50 fA/√Hz
INPUT CAPACITANCE
Differential 2 pF
Common-mode 2 pF
OPEN-LOOP GAIN
V
S
= 2.7 V, 0.3 V < V
O
< (V+) – 0.3 V, R
L
= 1 kΩ 88 100 dB
V
S
= 5.5 V, 0.3 V < V
O
< (V+) – 0.3 V, R
L
= 1 kΩ 90 110 dB
A
OL
Open-loop voltage gain
T
A
= –40°C to +85°C
84 dB
V
S
= 5.5 V, 0.3 V < V
O
< (V+) – 0.3 V, R
L
= 1 kΩ
FREQUENCY RESPONSE
V
S
= 3.3 V, R
L
= 1 kΩ, C
L
= 10 pF, G = 10 90 MHz
Gain bandwidth product
V
S
= 5.0 V, R
L
= 1 kΩ, C
L
= 10 pF, G = 10 100 MHz
V
S
= 5.0 V, G = 1, V
O
= 0.1 V
PP
, R
F
= 25 Ω 250 MHz
Small-signal bandwidth
V
S
= 5.0 V, G = 2, V
O
= 0.1 V
PP
, R
F
= 25 Ω 90 MHz
V
S
= 3.3 V, G = 1, 2-V step 110 V/µs
SR Slew rate V
S
= 5 V, G = 1, 2-V step 130 V/µs
V
S
= 5 V, G = 1, 4-V step 150 V/µs
t
r
Rise time V
S
= 5 V, G = 1, V
O
= 2 V
PP
, 10% to 90% 11 ns
t
f
Fall time V
S
= 5 V, G = 1, V
O
= 2 V
PP
, 90% to 10% 11 ns
To 0.1%, V
S
= 3.3 V, G = 1, 2-V step 30 ns
t
s
Settling time
To 0.01%, V
S
= 3.3 V, G = 1, 2-V step 60 ns
Overload recovery time V
S
= 3.3 V, V
IN
× gain = V
S
5 ns
OUTPUT
Voltage output swing from supply rails V
S
= 5.5 V, R
L
= 1 kΩ 100 mV
V
S
= 5.0 V 100 mA
Short-circuit current
V
S
= 3.3 V 50 mA
Closed-loop output impedance 0.05 Ω
Open-loop output impedance 35 Ω
(1) Parameters with MIN and MAX 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/or characterization; not production tested.
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