MAX1032EUG(2006) Просмотр технического описания (PDF) - Maxim Integrated

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MAX1032EUG
(Rev.:2006)

8-/4-Channel, ±12V Multirange Inputs, Serial 14-Bit ADCs

Maxim Integrated 

8-/4-Channel, ±12V Multirange Inputs,

Serial 14-Bit ADCs

ELECTRICAL CHARACTERISTICS (continued)

(AVDD1 = AVDD2 = DVDD = DVDDO = 5V, AGND1 = DGND = DGNDO = AGND2 = AGND3 = 0, fCLK = 3.5MHz (50% duty cycle),

external clock mode, VREF = 4.096V (external reference operation), REFCAP = AVDD1, maximum single-ended bipolar input range

(±12V), CDOUT = 50pF, CSSTRB = 50pF, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)

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

VREF

4.056

Reference Temperature

Coefficient

TCREF

4.096

±30

4.136

V

ppm/°C

Reference Short-Circuit Current

IREFSC

Reference Load Regulation

EXTERNAL REFERENCE (REFCAP = AVDD)

Reference Input Voltage Range

VREF

REFCAP Buffer Disable

Threshold

VRCTH

REF shorted to AGND1

REF shorted to AVDD

IREF = 0 to 0.5mA

(Note 4)

10

mA

-1

0.1

10

mV

3.800

AVDD1

- 0.4

4.136

V

AVDD1

V

- 0.1

Reference Input Current

VREF = +4.096V, external clock mode,

external acquisition mode, internal clock

IREF

mode, or partial power-down mode

90

200

µA

Reference Input Resistance

RREF

VREF = +4.096V, full power-down mode

External clock mode, external acquisition

mode, internal clock mode, or partial

power-down mode

±0.1 ±10

20

45

kΩ

Full power-down mode

40

DIGITAL INPUTS (DIN, SCLK, CS)

Input High Voltage

VIH

0.7 x

DVDDO

V

Input Low Voltage

VIL

0.3 x

V

DVDDO

Input Hysteresis

VHYST

0.2

V

Input Leakage Current

IIN

VIN = 0 to DVDDO

-10

+10

µA

Input Capacitance

CIN

10

pF

DIGITAL OUTPUTS (DOUT, SSTRB)

Output Low Voltage

VOL

DVDDO = 4.75V, ISINK = 10mA

DVDDO = 2.7V, ISINK = 5mA

0.4

V

0.4

Output High Voltage

VOH

ISOURCE = 0.5mA

DVDDO

V

- 0.4

DOUT Tri-State Leakage Current

IDDO

CS = DVDDO

-10

+10

µA

POWER REQUIREMENTS (AVDD1 and AGND1, AVDD2 and AGND2, DVDD and DGND, DVDDO and DGNDO)

Analog Supply Voltage

AVDD1

4.75

5.25

V

Digital Supply Voltage

DVDD

4.75

5.25

V

4 _______________________________________________________________________________________

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