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| MAX1392 Datasheet, PDF (3/19 Pages) Maxim Integrated Products – 1.5V to 3.6V, 357ksps, 1-Channel True-Differential/ 2-Channel Single-Ended, 10-Bit, SAR ADCs | |||
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1.5V to 3.6V, 357ksps, 1-Channel True-Differential/
2-Channel Single-Ended, 10-Bit, SAR ADCs
ELECTRICAL CHARACTERISTICS (continued)
(VDD = +1.5V to +3.6V, VREF = VDD, CREF = 0.1µF, fSCLK = 5MHz, TA = TMIN to TMAX, unless otherwise noted. Typical values are at
TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
CONVERSION RATE
Conversion Time
tCONV 11 clock cycles
2.2
µs
Throughput Rate
14 clocks per conversion; includes power-
up, acquisition, and conversion time
357 ksps
Power-Up and Acquisition Time
tACQ
Aperture Delay
tAD
Aperture Jitter
tAJ
Serial Clock Frequency
fCLK
ANALOG INPUTS (AIN+, AIN-, AIN1, AIN2)
Three SCLK cycles
600
ns
8
ns
30
ps
0.1
5.0
MHz
Input Voltage Range
Unipolar
VIN
Bipolar, MAX1392 only (AIN+ - AIN-)
0
-VREF/2
VREF
V
+VREF/2
Common-Mode Input Voltage
Range
VCM Bipolar, MAX1392 only [(AIN+) + (AIN-)] / 2
0
VDD
V
Input Leakage Current
Input Capacitance
REFERENCE INPUT (REF)
Channel not selected, or conversion
stopped, or in shutdown mode
REF Input Voltage Range
VREF
REF Input Capacitance
REF DC Leakage Current
REF Input Dynamic Current
357ksps
DIGITAL INPUTS (SCLK, CS, OE, CH1/CH2, UNI/BIP)
Input-Voltage Low
VIL
Input-Voltage High
VIH
Input Hysteresis
Input Leakage Current
Input Capacitance
DIGITAL OUTPUT (DOUT)
Output-Voltage Low
IIL
Inputs at GND or VDD
CS, OE
CIN
CH1/CH2, UNI/BIP
VOL
ISINK = 2mA
Output-Voltage High
VOH
ISOURCE = 2mA
±1
µA
16
pF
0.6
VDD +
0.05
V
24
pF
0.025 ±2.5
µA
20
60
µA
0.3 x
V
VDD
0.7 x
V
VDD
0.06 x
V
VDD
±1
µA
1
pF
12.5
0.9 x
VDD
0.1 x
V
VDD
V
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