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| MAX1220_10 Datasheet, PDF (5/43 Pages) Maxim Integrated Products – 12-Bit, Multichannel ADCs/DACs with FIFO, Temperature Sensing, and GPIO Ports | |||
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12-Bit, Multichannel ADCs/DACs with FIFO,
Temperature Sensing, and GPIO Ports
ELECTRICAL CHARACTERISTICS (continued)
(AVDD = DVDD = 2.7V to 3.6V (MAX1257), external reference VREF = 2.5V (MAX1257), AVDD = 4.75V to 5.25V, DVDD = 2.7V to AVDD
(MAX1220/MAX1258), external reference VREF = 4.096V (MAX1220/MAX1258), fCLK = 3.6MHz (50% duty cycle), TA = -40°C to +85°C,
unless otherwise noted. Typical values are at AVDD = DVDD = 3V (MAX1257), AVDD = DVDD = 5V (MAX1220/MAX1258), TA = +25°C.
Outputs are unloaded, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
DYNAMIC PERFORMANCE (Notes 5, 13)
Output-Voltage Slew Rate
SR Positive and negative
Output-Voltage Settling Time
Digital Feedthrough
tS
To 1 LSB, 400 - C00 hex (Note 7)
Code 0, all digital inputs from 0 to DVDD
Major Code Transition Glitch
Impulse
Between codes 2047 and 2048
Output Noise (0.1Hz to 50MHz)
From VREF
Using internal reference
Output Noise (0.1Hz to
500 kH z)
From VREF
Using internal reference
DAC-to-DAC Transition
Crosstalk
INTERNAL REFERENCE
REF1 Output Voltage (Note 8)
MAX1257
MAX1220/MAX1258
REF1 Temperature Coefficient
REF1 Short-Circuit Current
TCREF
EXTERNAL-REFERENCE INPUT
VREF = 2.5V
VREF = 4.096V
REF1 Input Voltage Range
VREF1 REF modes 01, 10, and 11 (Note 4)
REF1 Input Impedance
RREF1
DIGITAL INTERFACE
DIGITAL INPUTS (SCLK, DIN, CS, CNVST, LDAC)
Input-Voltage High
VIH
Input-Voltage Low
VIL
Input Leakage Current
IL
Input Capacitance
CIN
DIGITAL OUTPUT (DOUT) (Note 14)
Output-Voltage Low
VOL
DVDD = 2.7V to 5.25V
DVDD = 3.6V to 5.25V
DVDD = 2.7V to 3.6V
ISINK = 2mA
Output-Voltage High
VOH ISOURCE = 2mA
Three-State Leakage Current
Three-State Output
Capacitance
COUT
MIN
3
2.482
4.066
0.7
70
2.4
DVDD -
0.5
TYP
2
0.5
4
660
720
260
320
0.5
2.5
4.096
±30
0.39
0.63
100
±0.01
15
15
MAX
5
2.518
4.126
AVDD
130
0.8
0.6
±10
0.4
±10
UNITS
V/μs
μs
nVâ¢s
nVâ¢s
μVP-P
μVP-P
nVâ¢s
V
ppm/°C
mA
V
k
V
V
μA
pF
V
V
μA
pF
_______________________________________________________________________________________ 5
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