Rainbow Electronics MAX1204 - Manual (Page 3)

MAX1204
5V, 8-Channel, Serial, 10-Bit ADC
with 3V Digital Interface
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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.)
MAX1204AC
T A = +25°C
External clock, 2MHz, 12 clocks/conversion
(Note 6)
On/off leakage current, V CH_ = ±5V
Bipolar, V SS = -5V
Unipolar, V SS = 0V
6
Used for data transfer only
Internal compensation mode (Note 6)
Internal clock
External compensation mode, 4.7µF
CONDITIONS
ppm/°C
±30 ±50
V REF Temperature Coefficient
mA 30 REF Short-Circuit Current
V 4.076 4.096 4.116 REF Output Voltage
pF 16 Input Capacitance
µA ±0.01 ±1 Multiplexer Leakage Current
±V REF / 2
V
V REF Input Voltage Range, Single-
Ended and Differential (Note 7)
0 2.0
0.1 0.4 MHz
0.1 2.0
External Clock-Frequency Range
MHz 1.7 Internal Clock Frequency
ns 10 Aperture Delay
µs 1.5 t ACQ Track/Hold Acquisition Time
µs
5.5 10
t CONV Conversion Time (Note 5)
UNITS MIN TYP MAX SYMBOL PARAMETER
MAX1204AE ±30 ±60
±30 MAX1204B
0mA to 0.5mA output load mV 2.5 Load Regulation (Note 8)
Internal compensation mode
µF
0
Capacitive Bypass at REF
External compensation mode 4.7
µF 0.01 Capacitive Bypass at REFADJ
% ±1.5 REFADJ Adjustment Range
V
2.50 V DD +
50mV
Input Voltage Range
µA 200 350 Input Current
k Ω
12 20 Input Resistance
SHDN = 0V µA 1.5 10 REF Input Current in Shutdown
V
V DD -
50mV
REFADJ Buffer Disable Threshold
ps <50 Aperture Jitter
CONVERSION RATE
INTERNAL REFERENCE
ANALOG INPUT
EXTERNAL REFERENCE AT REF (Buffer disabled, V
REF
= 4.096V)