Specification	ADS8900BRGER

Architecture	SAR
Configuration	S/H-ADC
Data Interface	SPI
Input Type	Differential
Mounting Type	Surface Mount
Number of A/D Converters	1
Number of Bits	20
Number of Inputs	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Package / Case	24-VFQFN Exposed Pad
Ratio - S/H:ADC	1:1
Reference Type	External, Internal
Sampling Rate (Per Second)	1 M
Supplier Device Package	24-VQFN (4x4)
Voltage - Supply, Analog [Max]	5.5 V
Voltage - Supply, Analog [Min]	3 V
Voltage - Supply, Digital [Max]	5.5 V
Voltage - Supply, Digital [Min]	1.65 V

ADS8900B Series

20-bit, 1-MSPS, one-channel SAR ADC with internal VREF buffer, internal LDO and enhanced SPI

Part	Sampling Rate (Per Second)	Utilized IC / Part	Supplied Contents	Input Range	Number of A/D Converters	Number of Bits	Data Interface	Power (Typ) @ Conditions	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Voltage - Supply, Analog [Min]	Voltage - Supply, Analog [Max]	Architecture	Ratio - S/H:ADC	Package / Case	Number of Inputs	Voltage - Supply, Digital [Max]	Voltage - Supply, Digital [Min]	Configuration	Reference Type	Input Type	Mounting Type
Texas Instruments ADS8900BEVM-PDK	1 M	ADS8900B	Board(s)	±VREF	1	20	Serial SPI	21 mW
Texas Instruments ADS8900BRGER	1 M				1	20	SPI		125 °C	-40 °C	24-VQFN (4x4)	3 V	5.5 V	SAR	1:1	24-VFQFN Exposed Pad	1	5.5 V	1.65 V	S/H-ADC	External Internal	Differential	Surface Mount

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	$ 47.73
		10	$ 44.53
		25	$ 42.66
		100	$ 38.66
	Digi-Reel®	1	$ 47.73
		10	$ 44.53
		25	$ 42.66
		100	$ 38.66
	Tape & Reel (TR)	3000	$ 33.06
Texas Instruments	LARGE T&R	1	$ 40.39
		100	$ 35.90
		250	$ 29.52
		1000	$ 26.40

Description

General part information

ADS8900B Series

The ADS8900B, ADS8902B, and ADS8904B (ADS890xB) belong to a family of pin-to-pin compatible, high-speed, single-channel, high-precision, 20-bit successive-approximation-register (SAR) analog-to-digital converters (ADCs) with an integrated reference buffer and integrated low-dropout regulator (LDO). The device family includes the ADS891xB (18-bit) and ADS892xB (16-bit) resolution variants.

The ADS89xxB boosts analog performance while maintaining high-resolution data transfer by using TI’s Enhanced-SPI feature. Enhanced-SPI enables ADS89xxB in achieving high throughput at lower clock speeds, there by simplifying the board layout and lowering system cost. Enhanced-SPI also simplifies the host’s clocking-in of data there by making it ideal for applications involving FPGAs, DSPs. ADS89xxB is compatible with standard SPI Interface.

The ADS89xxB has an internal data parity feature which can be appended to the ADC data output. ADC data validation by the host, using parity bits, improves system reliability.