ADS8167 16-bit, 500-kSPS, 8-ch SAR ADC with VREF, VREF buffer and direct sensor interface

Description

The ADS816x is a family of 16-bit, 8-channel, high-precision successive approximation register (SAR) analog-to-digital converters (ADCs) operating from a single 5-V supply with a 1-MSPS (ADS8168),
500-kSPS (ADS8167), and 250-kSPS (ADS8166) total throughput.

The input multiplexer supports extended settling time, which makes driving the analog inputs easier. The output of the multiplexer and ADC analog inputs are available as device pins. This configuration allows one ADC driver op amp to be used for all eight analog inputs of the multiplexer.

The ADS816x features a digital window comparator with programmable high and low alarm thresholds per analog input channel. The single op-amp solution with programmable alarm thresholds enables low power, low cost, and smallest form-factor applications.

Features

Compact low-power data acquisition system:
- MUX breakout enables single external driver amplifier
- 16-bit SAR ADC
- Low-drift integrated reference and buffer
- 0.5 × V_REF output for analog input DC biasing
Excellent AC and DC performance:
- SNR: 92 dB, THD: –110 dB
- INL: ±0.3 LSB, 16-bit no missing codes
Multiplexer with channel sequencer:
- Multiple channel-sequencing options:
  - Manual mode, on-the-fly mode, auto sequence mode, custom channel sequencing
- Early switching enables direct sensor interface
- Fast response time with on-the-fly mode
System monitoring features:
- Per channel programmable window comparator
- False trigger avoidance with programmable hysteresis
Enhanced-SPI digital interface:
- 1-MSPS throughput with 16-MHz SCLK
- High-speed, 70-MHz digital interface
Wide operating range:
- External V_REF input range: 2.5 V to 5 V
- AVDD from 3 V to 5.5 V
- DVDD from 1.65 V to 5.5 V
- –40°C to +125°C temperature range

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Parametrics

Compare all products in Precision ADCs (<=10MSPS)

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Part number	Order	Resolution (Bits)	Sample rate (Max) (kSPS)	Number of input channels	Interface	Operating temperature range (C)	Package Group	Approx. price (US$)	Power consumption (Typ) (mW)	Package size: mm2:W x L (PKG)	Architecture	Input type	Multi-channel configuration	Reference mode	Features	Input range (Max) (V)	Input range (Min) (V)	Analog voltage AVDD (Min) (V)	Analog voltage AVDD (Max) (V)	Digital supply (Min) (V)	Digital supply (Max) (V)	INL (Max) (+/-LSB)	SNR (dB)	THD (Typ) (dB)	Rating
ADS8167	Order now	16	500	8	Enhanced SPI SPI	-40 to 125	VQFN \| 32	6.55 \| 1ku		32VQFN: 25 mm2: 5 x 5 (VQFN \| 32)	SAR	Pseudo-Differential Single-Ended	Multiplexed	Ext Int	Comparator	5	0	3	5.5	1.65	5.5	0.8	92	-110	Catalog
ADS8166	Order now	16	250	8	Enhanced SPI SPI	-40 to 125	VQFN \| 32	4.05 \| 1ku	15	32VQFN: 25 mm2: 5 x 5 (VQFN \| 32)	SAR	Pseudo-Differential Single-Ended	Multiplexed	Ext Int	Comparator	5	0	3	5.5	1.65	5.5	0.8	92	-110	Catalog
ADS8168	Order now	16	1000	8	Enhanced SPI SPI	-40 to 125	VQFN \| 32	9.95 \| 1ku	30	32VQFN: 25 mm2: 5 x 5 (VQFN \| 32)	SAR	Pseudo-Differential Single-Ended	Multiplexed	Ext Int	Comparator	5	0	3	5.5	1.65	5.5	0.8	92	-110	Catalog
ADS8331	Order now	16	500	4	SPI	-40 to 85

ADS8167 ACTIVE This product has been released to the market and is available for purchase. For some products, newer alternatives may be available. 16-bit, 500-kSPS, 8-ch SAR ADC with VREF, VREF buffer and direct sensor interface

Description

Features

Parametrics

ADS8167
ACTIVE

This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.

16-bit, 500-kSPS, 8-ch SAR ADC with VREF, VREF buffer and direct sensor interface