AD7793B datasheet(5/18 Pages) AD

No de pièce	AD7793B

Description	Low Power, 16/24-Bit Sigma-Delta ADC with Low-Noise In-Amp and Embedded Reference

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Fabricant	AD [Analog Devices]

Site Internet	http://www.analog.com

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Preliminary Technical Data

AD7792/AD7793

REV.PrF 6/04 | Page 5

Parameter

AD7792/AD7793B

Unit

Test Conditions/Comments

VT(+)

0.9/2

V min/V max

DVDD = 3 V

VT(–)

0.4/1.1

V min/V max

DVDD = 3 V

VT(+) - VT(–)

CLK2

VINL, Input Low Voltage

VINH, Input High Voltage

Input Currents

Input Capacitance

0.3/0.85

0.8

0.4

3.5

2.5

±1

10

V min/V max

V max

V min

µA max

pF typ

DVDD = 3 V

DVDD = 5 V

DVDD = 3 V

DVDD = 5 V

DVDD = 3 V

VIN = DVDD or GND

All Digital Inputs

LOGIC OUTPUTS (Including CLK)

VOH, Output High Voltage2

DVDD – 0.6

V min

DVDD = 3 V, ISOURCE = 100 µA

VOL, Output Low Voltage2

0.4

V max

DVDD = 3 V, ISINK = 100 µA

VOH, Output High Voltage2

4

V min

DVDD = 5 V, ISOURCE = 200 µA

VOL, Output Low Voltage2

0.4

V max

DVDD = 5 V, ISINK = 1.6 mA (DOUT/RDY)/800 µA

(CLK)

Floating-State Leakage Current

±1

µA max

Floating-State Output Capacitance

10

pF typ

Data Output Coding

Offset Binary

SYSTEM CALIBRATION2

Full-Scale Calibration Limit

Zero-Scale Calibration Limit

Input Span

1.05 x FS

-1.05 x FS

0.8 x FS

2.1 x FS

V max

V min

V max

POWER REQUIREMENTS7

Power Supply Voltage

AVDD – GND

2.7/5.25

V min/max

DVDD – GND

2.7/5.25

V min/max

Power Supply Currents

IDD Current

150

µA max

125 µA typ, Unbuffered Mode, Ext. Reference

175

µA max

150 µA typ, Buffered Mode, In-Amp Bypassed, Ext

Ref

380

µA max

330 µA typ, In-Amp used, Ext. Ref

450

µA max

400 µA typ, In-Amp used, Int Ref

IDD (Power-Down Mode)

1

µA max

1 Temperature Range –40°C to +105°C.

2 Specification is not production tested but is supported by characterization data at initial product release.

3 Following a self-calibration, this error will be in the order of the noise for the programmed gain and update rate selected. A system calibration will completely remove

this error.

4 Recalibration at any temperature will remove these errors.

5 Full-scale error applies to both positive and negative full-scale and applies at the factory calibration conditions (AVDD = 4 V).

6 FS[3:0] are the four bits used in the mode register to select the output word rate.

7 Digital inputs equal to DVDD or GND.

Numéro de pièce similaire - AD7793B

Fabricant	No de pièce	Fiches technique	Description
Analog Devices	AD7793BRU	661Kb / 32P	3-Channel, Low Noise, Low Power, 16-/24-Bit 誇-? ADC with On-Chip In-Amp and Reference REV. B
	AD7793BRU-REEL	661Kb / 32P	3-Channel, Low Noise, Low Power, 16-/24-Bit 誇-? ADC with On-Chip In-Amp and Reference REV. B
	AD7793BRUZ-REEL1	661Kb / 32P	3-Channel, Low Noise, Low Power, 16-/24-Bit 誇-? ADC with On-Chip In-Amp and Reference REV. B
	AD7793BRUZ1	661Kb / 32P	3-Channel, Low Noise, Low Power, 16-/24-Bit 誇-? ADC with On-Chip In-Amp and Reference REV. B

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Description similaire - AD7793B

Fabricant	No de pièce	Fiches technique	Description
Analog Devices	AD7794	260Kb / 21P	Low Power, 24-Bit Sigma-Delta ADC with In-Amp and Embedded Reference (6 Channel) REV.PrE 6/04
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	AD7124-4	1Mb / 90P	4-Channel, Low Noise, Low Power, 24-Bit, Sigma-Delta ADC with PGA and Reference
	AD7124-8	1Mb / 91P	8-Channel, Low Noise, Low Power, 24-Bit, Sigma-Delta ADC with PGA and Reference
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Intersil Corporation	ISL26102AVZ	909Kb / 21P	Low-Noise 24-bit Delta Sigma ADC October 12, 2012
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