MAX1258 Maxim Integrated Products, MAX1258 Datasheet - Page 15

• Manufacturer Part Number: MAX1258
• Description: Multichannel ADCs/DACs
• Manufacturer: Maxim Integrated Products

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(AV
(MAX1220/MAX1222/MAX1258), external V
= 300ksps, C
NEGATIVE FULL-SCALE SETTLING TIME
POSITIVE FULL-SCALE SETTLING TIME
MAX1220/MAX1222/MAX1258
DD
R
R
R
LOAD
LOAD
MAJOR CARRY TRANSITION
LOAD
= DV
= 10kΩ, C
= 10kΩ, C
= 10kΩ, C
MAX1221/MAX1223/MAX1257
MAX1220/MAX1222/MAX1258
DD
12-Bit, Multichannel ADCs/DACs with FIFO,
LOAD
1µs
1µs
1µs
= 3V (MAX1221/MAX1223/MAX1257), external V
LOAD
LOAD
LOAD
= 50pF, 0.1µF capacitor at REF, T
______________________________________________________________________________________
= 100pF
= 100pF
= 100pF
MAX1220 toc61
MAX1220 toc64
MAX1220 toc58
Temperature Sensing, and GPIO Ports
V
1V/div
V
1V/div
V
2V/div
V
2V/div
CS
2V/div
V
20mV/div
AC-COUPLED
OUT
LDAC
LDAC
OUT_
OUT
REF
DAC DIGITAL FEEDTHROUGH R
NEGATIVE FULL-SCALE SETTLING TIME
ADC REFERENCE SWITCHING
MAX1220/MAX1222/MAX1258
C
= 4.096V (MAX1220/MAX1222/MAX1258), f
MAX1221/MAX1223/MAX1257
LOAD
ADC REFERENCE FEEDTHROUGH
Typical Operating Characteristics (continued)
R
R
LOAD
LOAD
= 100pF, CS = HIGH, DIN = LOW
A
= 10kΩ, C
= 10kΩ, C
= +25°C, unless otherwise noted.)
MAX1221/MAX1223/MAX1257
200µs
2µs
200ns
LOAD
LOAD
REF
= 100pF
= 100pF
LOAD
= 2.5V (MAX1221/MAX1223/MAX1257), AV
MAX1220 toc62
MAX1220 toc65
MAX1220 toc59
= 10kΩ,
V
2V/div
V
2V/div
V
1V/div
V
10mV/div
AC-COUPLED
LDAC
OUT_
REF2
DAC-OUT
SCLK
1V/div
V
100mV/div
AC-COUPLED
OUT
DAC DIGITAL FEEDTHROUGH R
POSITIVE FULL-SCALE SETTLING TIME
CLK
ADC REFERENCE SWITCHING
C
MAX1220/MAX1222/MAX1258
ADC REFERENCE FEEDTHROUGH
LOAD
R
R
LOAD
LOAD
= 4.8MHz (50% duty cycle), f
= 100pF, CS = HIGH, DIN = LOW
= 10kΩ, C
= 10kΩ, C
MAX1220/MAX1222/MAX1258
MAX1221/MAX1223/MAX1257
200µs
1µs
200ns
LOAD
LOAD
= 100pF
= 100pF
DD
LOAD
MAX1220 toc66
MAX1220 toc63
= DV
MAX1220 toc60
= 10kΩ,
DD
V
2V/div
V
2mV/div
AC-COUPLED
V
1V/div
V
1V/div
REF2
DAC-OUT
SAMPLE
OUT_
LDAC
SCLK
2V/div
V
100mV/div
AC-COUPLED
OUT
= 5V
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