Datasheet

5Maxim Integrated
Dual 36V Op Amp for 18-Bit
SAR ADC Front-End
MAX9633
Typical Operating Characteristics (continued)
(V
CC
= +15V, V
EE
= -15V, V
CM
= 0V, outputs have R
L
= 10kI connected to V
GND
= 0V. Typical values are at T
A
= +25NC, unless
otherwise noted.)
COMMON-MODE REJECTION RATIO
vs. FREQUENCY
MAX9633 toc10
FREQUENCY (kHz)
CMRR (dB)
10,0001000100101
-100
-80
-60
-40
-20
0
-120
0.1 100,000
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX9633 toc11
FREQUENCY (kHz)
PSRR (dB)
10,000100010010
-120
-100
-80
-60
-40
-20
0
-140
1
100,000
OPEN-LOOP GAIN vs. FREQUENCY
MAX9633 toc12
FREQUENCY (kHz)
OPEN-LOOP GAIN (dB)
1000100.1
0
20
40
60
80
100
120
140
160
-20
0.001 100,000
R
ISO
= 20I
C
LOAD
= 1nF
SMALL-SIGNAL UNITY GAIN
vs. FREQUENCY
MAX9633 toc13
FREQUENCY (kHz)
GAIN (dB)
10,0001000100
-15
-10
-5
0
5
10
15
20
-20
10 100,000
LARGE-SIGNAL UNITY GAIN
vs. FREQUENCY
MAX9633 toc14
FREQUENCY (kHz)
GAIN (dB)
100,00010,000 10 100 1000
-15
-10
-5
0
5
10
15
20
-20
1
1,000,00
0
INPUT REFERED VOLTAGE NOISE
vs. FREQUENCY
MAX9633 toc15
FREQUENCY (Hz)
INPUT REFERED VOLTAGE NOISE (nV/√Hz)
10k1k110 100
5
10
15
20
25
30
35
40
0
0.1 100k
0.1Hz TO 10Hz NOISE vs. TIME
MAX9633 toc16
100nV/div
10s/div
CURRENT NOISE vs. FREQUENCY
MAX9633 toc17
FREQUENCY (Hz)
CURRENT NOISE (pA/√Hz)
10k1k100101
20
40
60
80
100
120
140
160
180
200
0
0.1 100k
INPUT INFERRED