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ADS8166

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16-bit, 250-kSPS, 8-ch SAR ADC with VREF, VREF buffer and direct sensor interface

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Data sheet

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ADS7066 ACTIVE Eight-channel, 250-kSPS, 16-bit analog-to-digital converter with internal reference, GPIOs and SPI Small size

ADS8166

ACTIVE
Data sheet Order now

Product details

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 voltage (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) 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 voltage (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 mm × 5 mm)
  • 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: 92dB, THD: –110dB
    • INL: ±0.3LSB, 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
    • 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:
    • 1MSPS throughput with 16MHz SCLK
    • High-speed, 50MHz digital interface
  • Wide operating range:
    • External VREF input range: 2.5V to 5V
    • AVDD from 3V to 5.5V
    • DVDD from 1.65V to 5.5V
    • –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: 92dB, THD: –110dB
    • INL: ±0.3LSB, 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
    • 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:
    • 1MSPS throughput with 16MHz SCLK
    • High-speed, 50MHz digital interface
  • Wide operating range:
    • External VREF input range: 2.5V to 5V
    • AVDD from 3V to 5.5V
    • DVDD from 1.65V to 5.5V
    • –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). The ADCs operate from a single 5V supply with a 1MSPS (ADS8168), 500kSPS (ADS8167), and 250kSPS (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). The ADCs operate from a single 5V supply with a 1MSPS (ADS8168), 500kSPS (ADS8167), and 250kSPS (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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Technical documentation

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* Data sheet ADS816x 8-Channel, 16-Bit, 1MSPS, SAR ADC With Direct Sensor Interface datasheet (Rev. D) PDF | HTML Jun 4, 2024
Application brief Designing a Cost-Optimized DAQ Solution (Rev. B) Jun 24, 2019

Design & development

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Evaluation board

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Simulation model

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Calculation tool

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Design tool

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The ADC-TO-VREF-SELECT tool enables the pairing of TI analog-to-digital converters (ADCs) and series voltage references. Users can select an ADC device and the desired reference voltage, and the tool will list up to two voltage reference recommendations.
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VQFN (RHB) 32 Ultra Librarian
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