Specification	ADS1288IRHBT

Architecture	Sigma-Delta
Configuration	MUX-PGA-ADC
Data Interface	SPI
Features	PGA
Input Type	Differential
Mounting Type	Surface Mount
Number of A/D Converters	1
Number of Bits	32
Number of Inputs	2
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Package / Case	32-VFQFN Exposed Pad
Ratio - S/H:ADC	0:1
Reference Type	External
Sampling Rate (Per Second)	2k
Supplier Device Package	32-VQFN (5x5)
Voltage - Supply, Analog [Max]	5.25 V
Voltage - Supply, Analog [Min]	2.375 V
Voltage - Supply, Digital [Max]	3.6 V
Voltage - Supply, Digital [Min]	1.65 V

ADS1288 Series

Low-power, 32-bit two-channel delta-sigma ADC for seismic and geospace exploration

Part	Voltage - Supply, Digital [Min]	Voltage - Supply, Digital [Max]	Number of A/D Converters	Reference Type	Number of Inputs	Supplier Device Package	Architecture	Mounting Type	Ratio - S/H:ADC	Input Type	Package / Case	Data Interface	Number of Bits	Sampling Rate (Per Second)	Features	Configuration	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply, Analog [Min]	Voltage - Supply, Analog [Max]
Texas Instruments ADS1288IRHBT	1.65 V	3.6 V	1	External	2	32-VQFN (5x5)	Sigma-Delta	Surface Mount	0:1	Differential	32-VFQFN Exposed Pad	SPI	32	2k	PGA	MUX-PGA-ADC	85 °C	-40 °C	2.375 V	5.25 V

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	$ 50.00
		10	$ 46.97
		25	$ 45.45
		100	$ 42.12
	Digi-Reel®	1	$ 50.00
		10	$ 46.97
		25	$ 45.45
		100	$ 42.12
	Tape & Reel (TR)	250	$ 40.91
Texas Instruments	SMALL T&R	1	$ 45.90
		100	$ 40.80
		250	$ 33.54
		1000	$ 30.00

Description

General part information

ADS1288 Series

The ADS1288 is a 32-bit, low-power, analog-to-digital converter (ADC), with a programmable gain amplifier (PGA) and a finite impulse response (FIR) filter. The ADC is designed for the demanding requirements of seismology equipment requiring low power consumption to extend battery run time.

The low-noise PGA extends the ADC dynamic range through gains 1 to 64. The PGA allows direct connection to geophones and transformer-coupled hydrophones without the need of an external amplifier. The optional unity-gain buffer reduces power consumption.

The ADC incorporates a high-resolution, delta-sigma (ΔΣ) modulator and a FIR filter with programmable phase response. The high-pass filter removes dc and low-frequency content from the signal. Clock frequency error is compensated by the sample rate converter with up to 7ppb frequency accuracy.