Rainbow Electronics MAX1301 - Manual (Page 4)

MAX1300/MAX1301
8-/4-Channel, ±12V Multirange Inputs,
Serial 16-Bit ADCs
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PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
INTERNAL REFERENCE (Bypass REFCAP with 0.1µF to AGND1 and REF with 1.0µF to AGND1)
Reference Output Voltage V REF 4.056 4.096 4.136 V
Reference Temperature
Coefficient
TC REF ±30 ppm/°C
REF shorted to AGND1 10
Reference Short-Circuit Current I REFSC
REF shorted to AV
DD
-1
mA
Reference Load Regulation I REF = 0 to 0.5mA 0.1 10 mV
EXTERNAL REFERENCE (REFCAP = AV DD )
Reference Input Voltage Range V REF 3.800 4.136 V
REFCAP Buffer Disable
Threshold
V RCTH (Note 5)
AV DD1
- 0.4
AV DD1
- 0.1
V
V REF = +4.096V, external clock mode,
external acquisition mode, internal clock
mode, or partial power-down mode 90 200
Reference Input Current I REF
V REF = +4.096V, full power-down mode ±0.1 ±10
µA
External clock mode, external acquisition
mode, internal clock mode, or partial
power-down mode
20 45 k Ω
Reference Input Resistance R REF
Full power-down mode 40 M Ω
DIGITAL INPUTS (DIN, SCLK, CS)
Input High Voltage V IH
0.7 x
DV DDO
V
Input Low Voltage V IL
0.3 x
DV
DDO
V
Input Hysteresis V HYST 0.2 V
Input Leakage Current I IN V IN = 0 to DV DDO -10 +10 µA
Input Capacitance C IN 10 pF
DIGITAL OUTPUTS (DOUT, SSTRB)
DV DDO = 4.75V, I SINK = 10mA 0.4
Output Low Voltage V OL
DV
DDO
= 2.7V, I
SINK
= 5mA 0.4
V
Output High Voltage V
OH
I
SOURCE
= 0.5mA
DV DDO
- 0.4
V
DOUT Tri-State Leakage Current I DDO
CS = DV
DDO -10 +10 µA
POWER REQUIREMENTS (AV DD1 and AGND1, AV DD2 and AGND2, DV DD and DGND, DV DDO and DGNDO)
Analog Supply Voltage AV DD1 4.75 5.25 V
Digital Supply Voltage DV DD 4.75 5.25 V
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
(±12V), C DOUT = 50pF, C SSTRB = 50pF, T A = -40°C to +85°C, unless otherwise noted. Typical values are at T A = +25°C.)