ADS8166 Texas instruments

ADS8166

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ADS8166

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Описание

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.

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

Resolution (Bits)	16
Sample rate (max) (ksps)	250
Number of input channels	8
Interface type	Enhanced SPI, SPI
Architecture	SAR
Input type	Pseudo-Differential, Single-ended
Multichannel configuration	Multiplexed
Rating	Catalog
Reference mode	External, Internal
Input voltage range (max) (V)	5
Input voltage range (min) (V)	0
Features	Comparator
Operating temperature range (°C)	-40 to 125
Power consumption (typ) (mW)	15
Analog supply (min) (V)	3
Analog supply voltage (max) (V)	5.5
SNR (dB)	92
Digital supply (min) (V)	1.65
Digital supply (max) (V)	5.5