Specification	AD7718BRUZ

Architecture	Sigma-Delta
Configuration	MUX-PGA-ADC
Data Interface	DSP, SPI
Features	PGA
Input Type	Pseudo-Differential, Differential
Mounting Type	Surface Mount
Number of A/D Converters	1 count
Number of Bits	24 bits
Number of Inputs	8, 5, 10, 4, 4/5, 8/10
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Package Length	0.173 in
Package Name	28-TSSOP
Package Width	4.4 mm
Reference Type	External
Sampling Rate (Per Second)	1.37 kHz
Voltage - Supply, Analog (Additional)	5 V
Voltage - Supply, Analog (Max)	3.6 V
Voltage - Supply, Analog (Min)	2.7 V
Voltage - Supply, Analog (Typical)	5 V
Voltage - Supply, Digital (Additional)	5 V
Voltage - Supply, Digital (Range 1) Maximum	3.6 V
Voltage - Supply, Digital (Range 1) Minimum	2.7 V

AD7718 Series

24-Bit, 8/10-Channel, Low Voltage, Low Power, Sigma Delta ADC

Part	Number of Inputs	Package Name	Mounting Type	Architecture	Sampling Rate (Per Second)	Number of A/D Converters	Reference Type	Voltage - Supply, Digital (Additional)	Voltage - Supply, Digital (Range 1) Minimum	Voltage - Supply, Digital (Range 1) Maximum	Data Interface	Operating Temperature (Min)	Operating Temperature (Max)	Configuration	Features	Package Width	Package Length	Input Type	Number of Bits	Voltage - Supply, Analog (Typical)	Voltage - Supply, Analog (Additional)	Voltage - Supply, Analog (Max)	Voltage - Supply, Analog (Min)	Supplied Contents	Input Voltage (Max)	Input Voltage (Min)	Utilized IC / Part	Contents	Power (Typ)
Analog Devices Inc./Maxim Integrated AD7718BRZ-REEL	10 4 4/5 5 8 8/10	28-SOIC	Surface Mount	Sigma-Delta	1.37 kHz	1 count	External	5 V	2.7 V	3.6 V	DSP SPI	-40 °C	85 °C	MUX-PGA-ADC	PGA	7.5 mm	0.295 in	Differential Pseudo-Differential	24 bits	5 V	5 V	3.6 V	2.7 V
Analog Devices Inc./Maxim Integrated AD7718BR-REEL	10 4 4/5 5 8 8/10	28-SOIC	Surface Mount	Sigma-Delta	1.37 kHz	1 count	External	5 V	2.7 V	3.6 V	DSP SPI	-40 °C	85 °C	MUX-PGA-ADC	PGA	7.5 mm	0.295 in	Differential Pseudo-Differential	24 bits	5 V	5 V	3.6 V	2.7 V
Analog Devices Inc./Maxim Integrated AD7718BRUZ	10 4 4/5 5 8 8/10	28-TSSOP	Surface Mount	Sigma-Delta	1.37 kHz	1 count	External	5 V	2.7 V	3.6 V	DSP SPI	-40 °C	85 °C	MUX-PGA-ADC	PGA	4.4 mm	0.173 in	Differential Pseudo-Differential	24 bits	5 V	5 V	3.6 V	2.7 V
Analog Devices Inc./Maxim Integrated AD7718BRZ	10 4 4/5 5 8 8/10	28-SOIC	Surface Mount	Sigma-Delta	1.37 kHz	1 count	External	5 V	2.7 V	3.6 V	DSP SPI	-40 °C	85 °C	MUX-PGA-ADC	PGA	7.5 mm	0.295 in	Differential Pseudo-Differential	24 bits	5 V	5 V	3.6 V	2.7 V
Analog Devices Inc./Maxim Integrated AD7718BRU-REEL7	10 4 4/5 5 8 8/10	28-TSSOP	Surface Mount	Sigma-Delta	1.37 kHz	1 count	External	5 V	2.7 V	3.6 V	DSP SPI	-40 °C	85 °C	MUX-PGA-ADC	PGA	4.4 mm	0.173 in	Differential Pseudo-Differential	24 bits	5 V	5 V	3.6 V	2.7 V
Analog Devices Inc./Maxim Integrated AD7718BR	10 4 4/5 5 8 8/10	28-SOIC	Surface Mount	Sigma-Delta	1.37 kHz	1 count	External	5 V	2.7 V	3.6 V	DSP SPI	-40 °C	85 °C	MUX-PGA-ADC	PGA	7.5 mm	0.295 in	Differential Pseudo-Differential	24 bits	5 V	5 V	3.6 V	2.7 V
Analog Devices Inc./Maxim Integrated AD7718BRUZ-REEL7	10 4 4/5 5 8 8/10	28-TSSOP	Surface Mount	Sigma-Delta	1.37 kHz	1 count	External	5 V	2.7 V	3.6 V	DSP SPI	-40 °C	85 °C	MUX-PGA-ADC	PGA	4.4 mm	0.173 in	Differential Pseudo-Differential	24 bits	5 V	5 V	3.6 V	2.7 V
Analog Devices Inc./Maxim Integrated AD7718BRZ-REEL7	10 4 4/5 5 8 8/10	28-SOIC	Surface Mount	Sigma-Delta	1.37 kHz	1 count	External	5 V	2.7 V	3.6 V	DSP SPI	-40 °C	85 °C	MUX-PGA-ADC	PGA	7.5 mm	0.295 in	Differential Pseudo-Differential	24 bits	5 V	5 V	3.6 V	2.7 V
Analog Devices Inc./Maxim Integrated EVAL-AD7718EBZ					1.37 kHz	1 count					Serial								24 bits					Board(s)	2.5 V	-2.5 V	AD7718	Board	3.84 mW

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	$ 15.99	<2d
		10	$ 12.67
		50	$ 11.34
		100	$ 10.93
		250	$ 10.50
		500	$ 10.23

CAD

3D models and CAD resources for this part

Description

General part information

AD7718 Series

The AD7708/18 are complete analog front-ends for low frequency measurement applications. The AD7718 contains a 24-bit sigma delta ADC with PGA and can be configured as 4/5 fully-differential input channels or 8/10 pseudo-differential input channels. Two pins on the device are configurable as analog inputs or reference inputs. The AD7708 is a 16-bit version of the AD7718. Inputs signal ranges from 20mV to 2.56V can be directly converted using these ADCs. Signals can be converted directly from a transducer without the need for signal conditioning.

Documents

Technical documentation and resources

AN-311: How to Reliably Protect CMOS Circuits Against Power Supply Overvoltaging

Application Note

AN-610: The PGA on Sigma-Delta ADCs (Rev.A)

Application Note

AN-665: Channel Switching Using Σ-Δ ADCs (Rev.0)

Application Note

AD7718BRUZ

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AD7718BRUZ

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Technical Specifications

AD7718 Series

Pricing

CAD

Description

AD7718 Series

Documents

AD7718BRUZ | Datasheet

AN-389: Using Sigma-Delta Converters-Part 2

EVAL-AD7718: 8/10-Channel, 24-Bit, Sigma Delta ADC

AN-609: Chopping on Sigma-Delta ADCs (Rev.0)

AN-397: Electrically Induced Damage to Standard Linear Integrated Circuits:

AN-615: Peak-to-Peak Resolution Versus Effective Resolution (Rev.0)

AN-611: 50 Hz/60Hz Rejection on Sigma-Delta ADCs (Rev.0)

Package Drawing - 28-Lead TSSOP (4.4mm x 9.7mm)

AN-283: Sigma-Delta ADCs and DACs

AN-608: Input Buffers on Sigma-Delta ADCs (Rev.0)

AN-347: Shielding and Guarding

AN-101: Cross Plot Generator Allows Quick A/D Converter Evaluation

AN-388: Using Sigma-Delta Converters-Part 1

AN-311: How to Reliably Protect CMOS Circuits Against Power Supply Overvoltaging

AN-610: The PGA on Sigma-Delta ADCs (Rev.A)

AN-665: Channel Switching Using Σ-Δ ADCs (Rev.0)

AD7718 Series