AD7193 4-Channel, 4.8 kHz, Ultralow Noise, 24-Bit Sigma-Delta ADC with PGA

The AD7193 is designed for the measurement of wide dynamic range, low frequency signals such as those in pressure transducers, strain gauge transducers, flow measurement, chromatography and data acquisition systems etc.

The AD7193 is an low power, flexible, high performance, ultra-low noise, 24 bit, Sigma Delta ADC suitable for converting low input bandwidth analog signals with a fully flexible ODR (output data rate) between 4.7SPS to 4.8kSPS

There is an on-chip low noise gain stage which allows signals of small amplitude to interface directly to the ADC.

The AD7193 combines 4 differential or 8 pseudo differential input channels with low power figures.

With an ODR of 4.7sps and a gain of 128 the AD7193 can boast RMS noise of 11nV.

The AD7193 is user friendly, with full part configuration available over a 3 wire serial interface.

The AD7193 comes in a 28 lead TSSOP package and a 32 lead LFCSP package.

Features and Benefits

Fast settling filter option
4 differential/8 pseudo differential input channels
RMS noise: 11 nV @ 4.7 Hz (gain = 128)
15.5 noise-free bits @ 2.4 kHz (gain = 128)
Up to 22 noise-free bits (gain = 1)
Offset drift: ±5 nV/°C

Gain drift: ±1 ppm/°C
Specified drift over time
Automatic channel sequencer
Programmable gain (1 to 128)
Output data rate: 4.7 Hz to 4.8 kHz
See data sheet for additional features

Analog to Digital Converters

A/D Converters

Design Tools

Reference Designs

Data Sheets

Document	note
AD7193: 4-Channel, 4.8 kHz, Ultralow Noise, 24-Bit Sigma-Delta ADC with PGA Data Sheet (Rev. D) AD7193 Key Sheet	PDF 993 kB

Application Notes

Document	note
AN-1131: Chopping on the AD7190, AD7192, AD7193, AD7194, and AD7195 (Rev. 0)	PDF 125 kB
AN-1084: Channel Switching: AD7190, AD7192, AD7193, AD7194, AD7195 (Rev. 0)	PDF 118 kB
AN-1069: Zero Latency for the AD7190, AD7192, AD7193, AD7194, and AD7195 (Rev. 0)	PDF 82 kB

User Guides

Document	note
UG-223: Evaluation Board for the AD7193, 4.8 kHz, Ultralow Noise, 24-Bit Sigma-Delta (Σ-Δ) ADC	PDF 736 kB

Frequently Asked Questions

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Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
AD7193BCPZ Production	32 ld LFCSP (5x5x.85mm) w/3.5exposed pad	OTH 490	-40 to 105C	6.85	5.85	Y
AD7193BCPZ-RL Production	32 ld LFCSP (5x5x.85mm) w/3.5exposed pad	REEL 5000	-40 to 105C	0	5.4	Y
AD7193BCPZ-RL7 Production	32 ld LFCSP (5x5x.85mm) w/3.5exposed pad	REEL 1500	-40 to 105C	0	5.4	Y
AD7193BRUZ Production	28 ld TSSOP (4.4mm)	OTH 50	-40 to 105C	6.3	5.4	Y
AD7193BRUZ-REEL Production	28 ld TSSOP (4.4mm)	REEL 2500	-40 to 105C	0	5.4	Y