Datasheet

ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +3V, V
SS
= V
CM
= 0V, V
OUT_
= V
DD
/2, R
L
to V
DD
/2, C
L
= 15pF, T
A
= T
MIN
to T
MAX
, unless otherwise specified.) (Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
V
DD
= 1.4V 2.9
MAX4038
V
DD
= 3.6V 3.2
V
DD
= 1.4V 3.4
MAX4038A
V
DD
= 3.6V 3.7
V
DD
= 1.8V 5.2
Supply Current I
DD
MAX4039
V
DD
= 3.6V 5.3
µA
OPERATIONAL AMPLIFIERS
Input Offset Voltage V
OS
±8 mV
Input Offset Voltage Temperature
Coefficient
TCV
OS
±1 µV/°C
Input Bias Current I
B
±100 pA
Input Offset Current I
OS
±200 pA
V
DD
= 1.4V
(MAX4036/MAX4038 only)
V
SS
V
DD
-
0.4
V
DD
= 1.8V V
SS
V
DD
-
0.4
Input Common-Mode Voltage
Range
V
CM
Guaranteed by
CMRR test
V
DD
= 3.3V V
SS
V
DD
-
0.2
V
V
DD
= 1.4V, V
SS
≤ V
CM
≤ (V
DD
- 0.5V)
(MAX4036/MAX4038 only)
44
V
DD
= 1.8V, V
SS
≤ V
CM
≤ (V
DD
- 0.4V) 50
Common-Mode Rejection Ratio CMRR
V
DD
= 3.3V, V
SS
≤ V
CM
≤ (V
DD
- 0.3V) 52
dB
1.4V ≤ V
DD
≤ 3.6V
(MAX4036/MAX4038 only)
60
Power-Supply Rejection Ratio PSRR
1.8V ≤ V
DD
≤ 3.6V 60
dB
R
L
= 100kΩ, 50mV ≤ V
OUT
≤ (V
DD
- 50mV) 75
Large-Signal Voltage Gain A
VOL
R
L
= 5kΩ, 150mV ≤ V
OUT
≤ (V
DD
- 150mV) 73
dB
R
L
= 100kΩ 10
Output Voltage Swing High V
DD
- V
OH
R
L
= 5kΩ 100
mV
R
L
= 100kΩ 10
Output Voltage Swing Low V
OL
- V
SS
R
L
= 5kΩ 100
mV
REFERENCE (MAX4037/MAX4039)
MAX4037EUT-T, MAX4039ETB,
MAX4039EUB
25 120
Reference Voltage Temperature
Coefficient
TCV
REF
(Note 1)
MAX4039EBL-T 35 200
ppm/°C
Line Regulation
ΔV
REF
/
ΔV
DD
V
DD
= 1.8V to 3.6V 0.6 %/V
0 ≤ I
LOAD
≤ 100µA, sourcing 0.003
Load Regulation
ΔV
REF
/
ΔI
LOAD
-20µA ≤ I
LOAD
≤ 0, sinking 0.015
%/µA
Capacitive-Load Stability Range C
LOAD
(Note 1) 0 250 pF
Note 1: Guaranteed by design.
Note 2: All devices are production tested at T
A
= +25°C. All temperature limits are guaranteed by design.
Note 3: Output settles within 1% of final value.
MAX4036–MAX4039
Low I
BIAS
, +1.4V/800nA, Rail-to-Rail Op Amps
with +1.2V Buffered Reference
4 _______________________________________________________________________________________