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See Technical Specifications

AD7796BRUZ

Low Power 16-Bit Sigma-Delta A/D Converter for Bridge Sensors

Manufacturer:

Analog Devices Inc.
Mfr.Part #:

AD7796BRUZ
Datasheet:

AD7796BRUZ Datasheet (PDF)
Number of Bits:

16
Sampling Rate (Per Second):

123
Number of Inputs:

1
Input Type:

Differential

Email: [email protected]

Skype: live:.cid.ab6b29428937b76

Tel: +852 95804164

AD7796BRUZ General Description

The AD7796/AD7797 are complete, analog front ends for highprecision, bridge sensor applications such as weigh scales. TheAD7796/AD7797 contain a Σ-∆ ADC capable of 16-/24-bitresolution, respectively. The on-chip instrumentation amplifierhas a fixed gain of 128, allowing small amplitude signals such asthose from bridge sensors to be directly interfaced to the ADC.

Key Features

RMS noise: 65 nV
Instrumentation amp
Temperature sensor
Internal clock oscillator
Simultaneous 50 Hz/60 Hz rejection
Update rate range: 4.17 Hz to 123 Hz
Current: 250 µA typ
Power-down: 1 µA
Power supply range: 2.7 V to 5.25 V
–40°C to +85°C temperature range
Independent interface power supply
16-lead TSSOP

Application

Weigh scales
Strain gages
Industrial process control
Instrumentation
Portable instrumentation

Specifications

Number of Bits	16	Sampling Rate (Per Second)	123
Number of Inputs	1	Input Type	Differential
Data Interface	SPI, DSP	Configuration	MUX-ADC
Number of A/D Converters	1	Architecture	Sigma-Delta
Reference Type	External	Voltage - Supply, Analog	2.7V ~ 5.25V
Voltage - Supply, Digital	2.7V ~ 5.25V	Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount	Base Product Number	AD7796