Rainbow Electronics MAX1092 - Manual (Page 4)

Operating mode,
MAX1090/MAX1092
400ksps, +5V, 8-/4-Channel, 10-Bit ADCs
with +2.5V Reference and Parallel Interface
4 _______________________________________________________________________________________
TIMING CHARACTERISTICS
(V DD = V LOGIC = +5V ±10%, COM = GND, REFADJ = V DD , V REF = +2.5V, 4.7µF capacitor at REF pin, f CLK = 7.6MHz (50% duty
cycle), T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)
CONDITIONS UNITS MIN TYP MAX SYMBOL PARAMETER
Standby mode
Operating mode,
f
SAMPLE = 400ksps
1.0 1.2
mA
2.2 2.5
2.6 2.9
I DD Positive Supply Current
V 4.5 5.5 V DD Analog Supply Voltage
200
ELECTRICAL CHARACTERISTICS (continued)
(V DD = V LOGIC = +5V ±10%, COM = GND, REFADJ = V DD , V REF = +2.5V, 4.7µF capacitor at REF pin, f CLK = 7.6MHz (50% duty
cycle), T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)
V LOGIC Current I LOGIC C L = 20pF
2 10
µA
Power-Supply Rejection PSR V DD = 5V ±10%, full-scale input ±0.3 ±0.7 mV
f SAMPLE = 400ksps
Nonconverting
V 2.7
V DD +
0.3
V LOGIC Digital Supply Voltage
WR to CLK Fall Setup Time t CWS 40 ns
ns CLK Pulse Width High
ns CLK Period
t CH 40
t CP 132
CLK Pulse Width Low t CL 40 ns
Data Valid to WR Rise Time t DS 40 ns
WR Rise to Data Valid Hold Time t DH 0 ns
CLK Fall to WR Hold Time t CWH 40 ns
CS to CLK or WR Setup Time t CSWS 60 ns
CLK or WR to CS Hold Time t CSWH 0 ns
CS Pulse Width t CS 100 ns
WR Pulse Width (Note 8) t WR 60 ns
PARAMETER SYMBOL MIN TYP MAX UNITS CONDITIONS
Shutdown mode 2 10
0.5 0.8
POWER REQUIREMENTS
µA
External reference
Internal reference
External reference
Internal reference