AD7294 datasheet(5/45 Pages) AD

Part #	AD7294

Description	12-Bit, Multichannel, DAC/ADC Temperature Sensor and Current Sense for Monitor and Control Applications

PDF	45 Pages

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Manufacturer	AD [Analog Devices]

Direct Link	http://www.analog.com

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5 / 45 page

Preliminary Technical Data

AD7294

Rev. PrB | Page 5 of 45

GENERAL SPECIFICATIONS1

AVDD = DVDD 4.5 V to 5.5 V, AGND = DGND= 0 V, external 2.5 V reference. Temperature range for B version: −40°C to +105°C. All

specifications TMIN to TMAX, unless otherwise noted.

Parameter

Min

Typ

Max

Unit

Test Conditions / Comments

LOGIC INPUTS (SDA, SCL ONLY)

VIH, Input High Voltage

0.7 VDRIVE

VIL, Input Low Voltage

0.3 VDRIVE

IIN, Input Leakage Current

±1

µA

VHYST, Input Hysteresis

0.05 DVDD

CIN, Input Capacitance

Glitch Rejection

Input filtering suppresses noise

spikes of less than 50 ns

LOGIC OUTPUTS

(SDA, ALERT, FAULT)

VOL, Output Low Voltage

0.4

ISINK = 3 mA

0.6

ISINK = 6 mA

Three-State Leakage Current

±1

µA

Three-State Output Capacitance

POWER REQUIREMENTS

VPP

AVDD

4.5

5.5

V(+)

4.5

16.5

DVDD

4.5

5.5

VDRIVE

5.5

IPP

TBD

AIDD

TBD

Outputs unloaded

DIDD

VIH = DVDD, VIL = DGND

AIDD (Power-Down)

µA

DIDD (Power-Down)

µA

Power Dissipation

TBD

1 Guaranteed by design and characterization; not subject to production testing.

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