Specification	AD7794CRUZ

Architecture	Sigma-Delta
Configuration	MUX-ADC
Data Interface	DSP, SPI
Features	Temperature Sensor, PGA
Input Type	Differential
Mounting Type	Surface Mount
Number of A/D Converters	1 count
Number of Bits	24 bits
Number of Inputs	6
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Package Length	0.173 in
Package Name	24-TSSOP
Package Width	4.4 mm
Reference Type	External, Internal
Sampling Rate (Per Second)	470 Hz
Voltage - Supply, Analog (Max)	5.25 V
Voltage - Supply, Analog (Min)	2.7 V
Voltage - Supply, Digital (Max)	5.25 V
Voltage - Supply, Digital (Min)	2.7 V

AD7794 Series

Part	Operating Temperature (Min)	Operating Temperature (Max)	Configuration	Number of A/D Converters	Number of Inputs	Number of Bits	Architecture	Mounting Type	Voltage - Supply, Analog (Max)	Voltage - Supply, Analog (Min)	Input Type	Reference Type	Sampling Rate (Per Second)	Package Width	Package Name	Package Length	Voltage - Supply, Digital (Min)	Voltage - Supply, Digital (Max)	Features	Data Interface	Supplied Contents	Input Range	Contents	Power (Typ)	Utilized IC / Part
Analog Devices Inc./Maxim Integrated AD7794BRUZ-REEL	-40 °C	105 °C	MUX-ADC	1 count	6	24 bits	Sigma-Delta	Surface Mount	5.25 V	2.7 V	Differential	External Internal	470 Hz	4.4 mm	24-TSSOP	0.173 in	2.7 V	5.25 V	PGA Temperature Sensor	DSP SPI
Analog Devices Inc./Maxim Integrated AD7794BRU-REEL	-40 °C	105 °C	MUX-ADC	1 count	6	24 bits	Sigma-Delta	Surface Mount	5.25 V	2.7 V	Differential	External Internal	470 Hz	4.4 mm	24-TSSOP	0.173 in	2.7 V	5.25 V	PGA Temperature Sensor	DSP SPI
Analog Devices Inc./Maxim Integrated EVAL-AD7794EBZ				1 count		24 bits							470 Hz							DSP SPI	Board(s) Cable(s)	±VREF/gain	Board Cable	2.5 mW	AD7794
Analog Devices Inc./Maxim Integrated AD7794CRUZ-REEL	-40 °C	125 °C	MUX-ADC	1 count	6	24 bits	Sigma-Delta	Surface Mount	5.25 V	2.7 V	Differential	External Internal	470 Hz	4.4 mm	24-TSSOP	0.173 in	2.7 V	5.25 V	PGA Temperature Sensor	DSP SPI
Analog Devices Inc./Maxim Integrated AD7794BRUZ	-40 °C	105 °C	MUX-ADC	1 count	6	24 bits	Sigma-Delta	Surface Mount	5.25 V	2.7 V	Differential	External Internal	470 Hz	4.4 mm	24-TSSOP	0.173 in	2.7 V	5.25 V	PGA Temperature Sensor	DSP SPI
Analog Devices Inc./Maxim Integrated AD7794CRUZ	-40 °C	125 °C	MUX-ADC	1 count	6	24 bits	Sigma-Delta	Surface Mount	5.25 V	2.7 V	Differential	External Internal	470 Hz	4.4 mm	24-TSSOP	0.173 in	2.7 V	5.25 V	PGA Temperature Sensor	DSP SPI

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$	Updated

Digikey	Tube	1	$ 21.53	<2d
		10	$ 17.22
		62	$ 15.32
		124	$ 14.82
		310	$ 14.29
		558	$ 14.01

CAD

3D models and CAD resources for this part

Description

General part information

AD7794 Series

The AD7794/AD7795are low power, low noise, complete analog front ends for high precision measurement applications. They contain a low noise, 24-/16-bit Σ-Δ ADC with six differential inputs. The on-chip low noise instrumentation amplifier means that signals of small amplitude can be interfaced directly to the ADC.Each device contains a precision, low noise, low drift internal band gap reference, and can also accept up to two external differential references. Other on-chip features include programmable excitation current sources, burnout currents, and a bias voltage generator that is used to set the common-mode voltage of a channel to AVDD/2. The low-side power switch can be used to power down bridge sensors between conversions, minimizing the system’s power consumption. The AD7794/AD7795 can operate with either an internal clock or an external clock. The output data rate from each part can vary from 4.17 Hz to 470 Hz.Both parts operate with a power supply from 2.7 V to 5.25 V. The B-grade parts (AD7794 and AD7795) are specified for a temperature range of −40°C to +105°C while the C-grade part (AD7794) is specified for a temperature range of −40°C to +125°C. They consume a current of 400 μA typical and are housed in a 24-lead TSSOP.ApplicationsTemperature measurementPressure measurementWeigh scalesStrain gage transducersGas analysis