MAX1204 Datasheet, PDF (3/24 Pages) Maxim Integrated Products – 5v, 8-cHANNEL, sERIAL, 10-bIT adc WITH 3v dIGITAL iNTERFACE

5V, 8-Channel, Serial, 10-Bit ADC
with 3V Digital Interface
ELECTRICAL CHARACTERISTICS (continued)
(V_DD = +5V ±5%, VL = 2.7V to 3.6V; V_SS = 0V or -5V ±5%; f_SCLK = 2.0MHz, external clock (50% duty cycle); 15 clocks/conversion
cycle (133ksps); 4.7µF capacitor at REF; T_A = T_MIN to T_MAX; unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
CONVERSION RATE
Conversion Time (Note 5)
Internal clock
5.5
t_{CONV External clock, 2MHz, 12 clocks/conversion}
6
10
µs
Track/Hold Acquisition Time
t_ACQ
1.5
µs
Aperture Delay
10
ns
Aperture Jitter
<50
ps
Internal Clock Frequency
1.7
MHz
External compensation mode, 4.7µF
0.1
2.0
External Clock-Frequency Range
Internal compensation mode (Note 6)
0.1
0.4 MHz
Used for data transfer only
0
2.0
ANALOG INPUT
Input Voltage Range, Single-
Ended and Differential (Note 7)
Unipolar, V_SS = 0V
Bipolar, V_SS = -5V
Multiplexer Leakage Current
On/off leakage current, V_{CH_} = ±5V
Input Capacitance
(Note 6)
INTERNAL REFERENCE
REF Output Voltage
T_A = +25°C
REF Short-Circuit Current
MAX1204AC
V_REF Temperature Coefficient
MAX1204AE
MAX1204B
Load Regulation (Note 8)
0mA to 0.5mA output load
Capacitive Bypass at REF
Internal compensation mode
External compensation mode
Capacitive Bypass at REFADJ
REFADJ Adjustment Range
EXTERNAL REFERENCE AT REF (Buffer disabled, V_REF = 4.096V)
Input Voltage Range
V_REF
V
±V_REF / 2
±0.01 ±1
µA
16
pF
4.076
0
4.7
0.01
4.096
±30
±30
±30
2.5
4.116
30
±50
±60
V
mA
ppm/°C
mV
µF
µF
±1.5
%
2.50
V_DD +
50mV
V
Input Current
Input Resistance
REF Input Current in Shutdown
REFADJ Buffer Disable Threshold
SHDN = 0V
200
350
µA
12
20
kΩ
1.5
10
µA
V_DD -
50mV
V
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