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| MAX157 Datasheet, PDF (3/16 Pages) Maxim Integrated Products – Dual-Channel CardBus and PCMCIA VCC/VPP Power-Switching Networks | |||
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+2.7V, Low-Power, 2-Channel,
108ksps, Serial 10-Bit ADCs in 8-Pin µMAX
ELECTRICAL CHARACTERISTICS (continued)
(VDD = +2.7V to +5.25V, VREF = 2.5V, 0.1µF capacitor at REF, fSCLK = 2.17MHz, 16 clocks/conversion cycle (108ksps),
CH- = GND for MAX159, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
CONVERSION RATE
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Conversion Time (Note 5)
T/H Acquisition Time
Aperture Delay
tCONV
tACQ
External clock, fSCLK = 2.17MHz, 16 clock
cycles per conversion
Internal clock
7.4
µs
5
7
2.5
µs
25
ns
Aperture Jitter
Serial Clock Frequency
fSCLK
External clock mode
Internal clock mode, for data transfer only
<50
ps
0.1
2.17 MHz
MHz
0
5
ANALOG INPUTS
Analog Input Voltage Range
(Note 6)
VIN
0
VREF
V
Multiplexer Leakage Current
Input Capacitance
EXTERNAL REFERENCE
Input Voltage Range (Note 7)
Input Current
Input Resistance
Shutdown REF Input Current
On/off-leakage current, VIN = 0 to VDD
CIN
VREF
VREF = 2.5V
±0.01 ±1
µA
16
µA
0
VDD + 50mV
V
100
140
µA
18
25
kâ¦
0.01
10
µA
DIGITAL INPUTS (CS/SHDN, SCLK) AND DIGITAL OUTPUT (DOUT)
Input High Voltage
VIH
VDD ⤠3.6V
VDD > 3.6V
Input Low Voltage
VIL
Input Hysteresis
VHYS
Input Leakage Current
IIN
VIN = 0 or VDD
Input Capacitance
CIN
(Note 8)
Output Low Voltage
VOL
ISINK = 5mA
ISINK = 16mA
Output High Voltage
VOH ISOURCE = 0.5mA
2.0
V
3.0
0.8
V
0.2
V
±1
µA
15
pF
0.4
V
0.5
VDD - 0.5
V
Three-State Output Leakage
Current
Three-State Output Capacitance
COUT
CS/SHDN = VDD
CS/SHDN = VDD (Note 8)
±10
µA
15
pF
_______________________________________________________________________________________ 3
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