Integrated Circuits (ICs)

ADS8681IRUMR

Active

16-BIT, 1MSPS 1-CH SAR ADC WITH PROGRAMMABLE (±12V, ±10V, ±6V, ±5V, ±2.5V) INPUT RANGES ON 5V SUPPLY

Deep-Dive with AI

Search across all available documentation for this part.

DocumentsEMC Compliance Testing for Precision ADC Systems (Rev. A)Circuit for protecting ADC with TVS diode and PTC fuse +13

Integrated Circuits (ICs)

ADS8681IRUMR

Active

Texas Instruments

16-BIT, 1MSPS 1-CH SAR ADC WITH PROGRAMMABLE (±12V, ±10V, ±6V, ±5V, ±2.5V) INPUT RANGES ON 5V SUPPLY

Deep-Dive with AI

DocumentsEMC Compliance Testing for Precision ADC Systems (Rev. A)Circuit for protecting ADC with TVS diode and PTC fuse +13

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	ADS8681IRUMR

Architecture	SAR
Configuration	PGA-S/H-ADC
Data Interface	SPI
Features	PGA
Input Type	Single Ended, Pseudo-Differential
Mounting Type	Surface Mount
Number of A/D Converters	1
Number of Bits	16
Number of Inputs	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Package / Case	16-WQFN Exposed Pad
Ratio - S/H:ADC	1:1
Reference Type	External, Internal
Sampling Rate (Per Second)	1 M
Supplier Device Package	16-WQFN (4x4)
Voltage - Supply, Analog	5 V
Voltage - Supply, Digital [Max]	5.25 V
Voltage - Supply, Digital [Min]	1.65 V

ADS8681 Series

16-bit, 1MSPS 1-ch SAR ADC with programmable (±12V, ±10V, ±6V, ±5V, ±2.5V) input ranges on 5V supply

Part	Package / Case [x]	Package / Case	Package / Case [y]	Supplier Device Package	Features	Architecture	Voltage - Supply, Digital [Max]	Voltage - Supply, Digital [Min]	Sampling Rate (Per Second)	Configuration	Voltage - Supply, Analog	Number of Inputs	Operating Temperature [Min]	Operating Temperature [Max]	Input Type	Data Interface	Number of A/D Converters	Mounting Type	Reference Type	Ratio - S/H:ADC	Number of Bits
Texas Instruments ADS8681IPW	0.173 in	16-TSSOP	4.4 mm	16-TSSOP	PGA	SAR	5.25 V	1.65 V	1 M	PGA-S/H-ADC	5 V	1	-40 °C	125 °C	Pseudo-Differential Single Ended	SPI	1	Surface Mount	External Internal	1:1	16
Texas Instruments ADS8681IPWR	0.173 in	16-TSSOP	4.4 mm	16-TSSOP	PGA	SAR	5.25 V	1.65 V	1 M	PGA-S/H-ADC	5 V	1	-40 °C	125 °C	Pseudo-Differential Single Ended	SPI	1	Surface Mount	External Internal	1:1	16
Texas Instruments ADS8681IRUMR		16-WQFN Exposed Pad		16-WQFN (4x4)	PGA	SAR	5.25 V	1.65 V	1 M	PGA-S/H-ADC	5 V	1	-40 °C	125 °C	Pseudo-Differential Single Ended	SPI	1	Surface Mount	External Internal	1:1	16
Texas Instruments ADS8681IRUMT		16-WQFN Exposed Pad		16-WQFN (4x4)	PGA	SAR	5.25 V	1.65 V	1 M	PGA-S/H-ADC	5 V	1	-40 °C	125 °C	Pseudo-Differential Single Ended	SPI	1	Surface Mount	External Internal	1:1	16

Pricing

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

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 9.09
		10	$ 7.07
		25	$ 6.56
		100	$ 6.01
		250	$ 5.74
		500	$ 5.58
		1000	$ 5.45
	Digi-Reel®	1	$ 9.09
		10	$ 7.07
		25	$ 6.56
		100	$ 6.01
		250	$ 5.74
		500	$ 5.58
		1000	$ 5.45
	Tape & Reel (TR)	3000	$ 4.90
Texas Instruments	LARGE T&R	1	$ 6.75
		100	$ 5.50
		250	$ 4.33
		1000	$ 3.67

Description

General part information

ADS8681 Series

The ADS8681, ADS8685, and ADS8689 belong to a family of integrated data acquisition system based on a successive approximation (SAR) analog-to-digital converter (ADC). The devices feature a high-speed, high-precision SAR ADC, integrated analog front-end (AFE) input driver circuit, overvoltage protection circuit up to ±20 V, and an on-chip 4.096-V reference with extremely low temperature drift.

The devices operate on a single 5-V analog supply, but support true bipolar input ranges of ±12.288 V, ±6.144 V, ±10.24 V, ±5.12 V, and ±2.56 V, as well as unipolar input ranges of 0 V to 12.288 V, 0 V to 10.24 V, 0 V to 6.144 V, and 0 V to 5.12 V. The gain and offset errors are accurately trimmed within the specified values for each input range to ensure high dc precision. The input range selection is done by software programming of the device internal registers. The devices offer a high resistive input impedance (≥ 1 MΩ) irrespective of the selected input range.

The multiSPI digital interface is backward-compatible to the traditional SPI protocol. Additionally, configurable features simplify interface to a wide range of host controllers.