Rainbow Electronics MAX1204 - Manual (Page 6)

C LOAD = 100pF MAX1204
5V, 8-Channel, Serial, 10-Bit ADC
with 3V Digital Interface
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External clock mode only, C LOAD = 100pF ns 240
C LOAD = 100pF ns
ns 20 240 t DO SCLK Fall to Output Data Valid
CONDITIONS
240 t DV
CS Fall to Output Enable
C LOAD = 100pF ns 240 t TR
CS Rise to Output Disable
t SDV
CS Fall to SSTRB Output Enable
(Note 6)
External clock mode only, C LOAD = 100pF ns 240 t STR
CS Rise to SSTRB Output
Disable (Note 6)
Internal clock mode only ns 0 t SCK
SSTRB Rise to SCLK Rise
(Note 6)
ns 0 t DH DIN to SCLK Hold
µs 1.5 t ACQ Acquisition Time
ns 100 t DS DIN to SCLK Setup
UNITS MIN TYP MAX SYMBOL PARAMETER
TIMING CHARACTERISTICS
(V DD = +5V ±5%, VL = 2.7V to 3.6V, V SS = 0V or -5V ±5%, T A = T MIN to T MAX , unless otherwise noted.)
ns 100 t CSS
CS to SCLK Rise Setup
ns 0 t CSH
CS to SCLK Rise Hold
ns 200 t CH SCLK Pulse Width High
ns 200 t CL SCLK Pulse Width Low
C LOAD = 100pF ns 240 t SSTRB SCLK Fall to SSTRB
C LOAD = 100pF
Note 1: Tested at V DD = 5.0V; V SS = 0V; unipolar input mode.
Note 2: Relative accuracy is the analog value’s deviation (at any code) from its theoretical value after the full-scale range is
calibrated.
Note 3: Internal reference, offset nulled.
Note 4: On-channel grounded; sine-wave applied to all off-channels.
Note 5: Conversion time is defined as the number of clock cycles multiplied by the clock period; clock has 50% duty cycle.
Note 6: Guaranteed by design. Not subject to production testing.
Note 7: Common-mode range for analog inputs is from V SS to V DD .
Note 8: External load should not change during the conversion for specified accuracy.
Note 9: Shutdown supply current is measured with VL at 3.3V, and with all digital inputs tied to either VL or GND (Figure 12c);
REFADJ = GND.
Note 10: Logic supply current is measured with the digital outputs (DOUT and SSTRB) disabled ( CS high). When the outputs are
active ( CS low), the logic supply current depends on f
SCLK , and on the static and capacitive load at DOUT and SSTRB.
Note 11: Measured at V SUPPLY +5% and V SUPPLY -5% only.
Note 12: Measured at VL = 2.7V and VL = 3.6V.