Rainbow Electronics MAX1303 - Manual (Page 5)

MAX1302/MAX1303
8-/4-Channel, ±V
REF
Multirange Inputs,
Serial 16-Bit ADCs
_______________________________________________________________________________________ 5
ELECTRICAL CHARACTERISTICS (continued)
(AV DD1 = AV DD2 = DV DD = DV DDO = 5V, AGND1 = DGND = DGNDO = AGND2 = AGND3 = 0, f CLK = 3.5MHz (50% duty cycle),
external clock mode, V REF = 4.096V (external reference operation), REFCAP = AV DD1 , maximum single-ended bipolar input range
(±V REF ), C DOUT = 50pF, C SSTRB = 50pF, T A = -40°C to +85°C, unless otherwise noted. Typical values are at T A = +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Preamplifier Supply Voltage AV DD2 4.75 5.25 V
Digital I/O Supply Voltage DV DDO 2.70 5.25 V
Internal reference 3 3.5
AV DD1 Supply Current I AVDD1
External clock mode,
external acquisition
mode, or internal
clock mode
External reference 2.5 3
mA
DV DD Supply Current I DVDD
External clock mode, external acquisition
mode, or internal clock mode
0.9 2 mA
AV DD2 Supply Current I AVDD2
External clock mode, external acquisition
mode, or internal clock mode
17.5 25 mA
DV DDO Supply Current I DVDDO
External clock mode, external acquisition
mode, or internal clock mode
0.2 1 mA
Partial power-down mode 1.3 mA
Total Supply Current
Full power-down mode 2 µA
Power-Supply Rejection Ratio PSRR All analog input ranges ±0.5 LSB
TIMING CHARACTERISTICS (Figures 15 and 16)
External clock mode 272 62
External acquisition mode 228 62 SCLK Period t
CP
Internal clock mode 100 83
µs
External clock mode 109
External acquisition mode 92 SCLK High Pulse Width (Note 6) t CH
Internal clock mode 40
ns
External clock mode 109
External acquisition mode 92 SCLK Low Pulse Width (Note 6) t CL
Internal clock mode 40
ns
DIN to SCLK Setup t
DS
40 ns
DIN to SCLK Hold t DH 0 ns
SCLK Fall to DOUT Valid t DO 40 ns
CS Fall to DOUT Enable t DV 40 ns