Datasheet

80
dB
Ultra-Small, 1.8V, µPower,
Rail-to-Rail I/O Op Amps
4 _______________________________________________________________________________________
Note 1: All devices are 100% tested at T
A
= +25°C. All temperature limits are guaranteed by design.
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 1.8V to 5.5V, V
EE
= V
CM
= 0, V
OUT
= V
CC
/2, R
L
= 100kΩ connected to V
CC
/2, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
(Note 1)
MAX4291/MAX4292/MAX4294
120R
L
= 2kΩ to V
CC
/2
R
L
= 100kΩ to V
CC
/2
R
L
= 100kΩ to V
CC
/2
80
80
80
V
CC
= 5.0V
R
L
= 2kΩ,
0.1V ≤ V
OUT
≤ V
CC
- 0.1V
R
L
= 100kΩ,
0.02V ≤ V
OUT
≤ V
CC
- 0.02V
R
L
= 2kΩ,
0.1V ≤ V
OUT
≤ V
CC
- 0.1V
R
L
= 100kΩ,
0.02V ≤ V
OUT
≤ V
CC
- 0.02V
PARAMETER SYMBOL MIN TYP MAX UNITS
Large-Signal Voltage Gain A
V
80
dB
50
Input Common-Mode Voltage
Range
V
CM
0V
CC
V
Output-Voltage Swing High
V
OH
20
mV
Output-Voltage Swing Low
V
OL
mV
Input Bias Current
Input Offset Voltage Drift TCV
OS
1.2 µV/°C
I
B
±90 nA
Input Offset Current I
OS
±10 nA
CONDITIONS
V
CC
= 1.8V
Inferred from CMRR test
Specified as
|V
CC
- V
OH
|
Specified as
|V
EE
- V
OL
|
V
CC
= 5.0V, 0 ≤ V
CM
≤ 5.0V
V
CC
= 5.0V, 0 ≤ V
CM
≤ 5.0V
dB
CMRRCommon-Mode Rejection Ratio
Tested for
0 ≤ V
CM
≤ 1.8V,
V
CC
= 1.8V
75 dBPSRRPower-Supply Rejection Ratio
53
Tested for
0 ≤ V
CM
≤ 5.0V,
V
CC
= 5.0V
60
62
dB
MAX4291
MAX4292/MAX4294
MAX4291
MAX4292/MAX4294
40
R
L
= 2kΩ to V
CC
/2