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ADS8168

ACTIVE

16-bit, 1-MSPS, 8-ch SAR ADC with VREF, VREF buffer and direct sensor interface

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Data sheet

ADS8168

ACTIVE
Data sheet Order now

Product details

Resolution (Bits) 16 Sample rate (max) (ksps) 1000 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) 30 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
Resolution (Bits) 16 Sample rate (max) (ksps) 1000 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) 30 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
VQFN (RHB) 32 25 mm² 5 x 5
  • 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 × VREF 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 VREF 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
  • 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 × VREF 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 VREF 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

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.

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.
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* Data sheet ADS816x 8-Channel, 16-Bit, 1-MSPS, SAR ADC With Direct Sensor Interface datasheet (Rev. C) PDF | HTML 05 Nov 2019
Application brief Designing a Cost-Optimized DAQ Solution (Rev. B) 24 Jun 2019
Circuit design Circuit for protecting low-voltage SAR ADC from electrical overstress with minim 25 May 2019
EVM User's guide ADS8168EVM-PDK User's Guide 16 Nov 2017

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