Datasheet

MAX1020/MAX1022/MAX1057/MAX1058
10-Bit, Multichannel ADCs/DACs with FIFO,
Temperature Sensing, and GPIO Ports
______________________________________________________________________________________ 15
DAC DIGITAL FEEDTHROUGH (R
LOAD
= 10kΩ,
C
LOAD
= 100pF, CS = HIGH, DIN = LOW)
MAX1020 toc55
200ns
V
OUT
100mV/div
AC-COUPLED
SCLK
1V/div
MAX1057
DAC DIGITAL FEEDTHROUGH (R
LOAD
= 10kΩ,
C
LOAD
= 100pF, CS = HIGH, DIN = LOW)
MAX1020 toc56
200ns
V
OUT
100mV/div
AC-COUPLED
SCLK
2V/div
MAX1020/MAX1022/MAX1058
NEGATIVE FULL-SCALE SETTLING TIME
R
LOAD
= 10kΩ, C
LOAD
= 100pF
MAX1020 toc57
1µs
V
OUT
1V/div
MAX1057
V
LDAC
1V/div
NEGATIVE FULL-SCALE SETTLING TIME
R
LOAD
= 10kΩ, C
LOAD
= 100pF
MAX1020 toc58
2µs
V
OUT_
2V/div
MAX1020/MAX1022/MAX1058
V
LDAC
2V/div
POSITIVE FULL-SCALE SETTLING TIME
R
LOAD
= 10kΩ, C
LOAD
= 100pF
MAX1020 toc59
1µs
V
OUT_
1V/div
MAX1057
V
LDAC
1V/div
POSITIVE FULL-SCALE SETTLING TIME
R
LOAD
= 10kΩ, C
LOAD
= 100pF
MAX1020 toc60
1µs
V
OUT_
2V/div
MAX1020/MAX1022/MAX1058
V
LDAC
2V/div
ADC REFERENCE FEEDTHROUGH
R
LOAD
= 10kΩ, C
LOAD
= 100pF
MAX1020 toc61
200µs
V
DAC-OUT
10mV/div
AC-COUPLED
MAX1057
V
REF2
1V/div
ADC REFERENCE SWITCHING
ADC REFERENCE FEEDTHROUGH
R
LOAD
= 10kΩ, C
LOAD
= 100pF
MAX1020 toc62
200µs
V
DAC-OUT
2mV/div
AC-COUPLED
MAX1020/MAX1022/MAX1058
V
REF2
2V/div
ADC REFERENCE SWITCHING
Typical Operating Characteristics (continued)
(V
AVDD
= V
DVDD
= 3V (MAX1057), external V
REF
= 2.5V (MAX1057), V
AVDD
= V
DVDD
= 5V (MAX1020/MAX1022/MAX1058), external
V
REF
= 4.096V (MAX1020/MAX1022/MAX1058), f
CLK
= 3.6MHz (50% duty cycle), f
SAMPLE
= 225ksps, C
LOAD
= 50pF, 0.1µF capaci-
tor at REF, T
A
= +25°C, unless otherwise noted.)