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ADS8548

AKTIV

14-Bit, 8-Kanal-ADC mit simultaner Abtastung und bipolarem Eingang

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ADS8548

AKTIV
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Produktdetails

Resolution (Bits) 14 Sample rate (max) (ksps) 600 Number of input channels 8 Interface type Byte-Wide, Parallel, SPI Architecture SAR Input type Single-ended Multichannel configuration Simultaneous Sampling Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 12 Input voltage range (min) (V) -12 Features Daisy-Chainable, Oscillator Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 335 Analog supply voltage (min) (V) 4.5 Analog supply voltage (max) (V) 5.5 SNR (dB) 85 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.5
Resolution (Bits) 14 Sample rate (max) (ksps) 600 Number of input channels 8 Interface type Byte-Wide, Parallel, SPI Architecture SAR Input type Single-ended Multichannel configuration Simultaneous Sampling Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 12 Input voltage range (min) (V) -12 Features Daisy-Chainable, Oscillator Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 335 Analog supply voltage (min) (V) 4.5 Analog supply voltage (max) (V) 5.5 SNR (dB) 85 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.5
LQFP (PM) 64 144 mm² 12 x 12 VQFN (RGC) 64 81 mm² 9 x 9
  • Family of 12-, 14-, and 16-Bit, Pin- and Software-Compatible ADCs
  • Maximum Data Rate per Channel:
    • ADS8528: 650 kSPS (PAR) or
      480 kSPS (SER)
    • ADS8548: 600 kSPS (PAR) or
      450 kSPS (SER)
    • ADS8568: 510 kSPS (PAR) or
      400 kSPS (SER)
  • Excellent AC Performance:
    • Signal-to-Noise Ratio:
      ADS8528: 73.9 dB, ADS8548: 85 dB, ADS8568: 91.5 dB
    • Total Harmonic Distortion:
      ADS8528: –89 dB, ADS8548: –91 dB, ADS8568: –94 dB
  • Programmable, Buffered Internal Reference:
    0.5 V–2.5 V or 0.5 V–3.0 V Supports Input Voltage Ranges up to ±12 V
  • Selectable Parallel or Serial Interface
  • Scalable Low-Power Operation Using Auto-Sleep Mode: Only 32 mW at 10 kSPS
  • Fully Specified Over Extended Industrial Temperature Range
  • Family of 12-, 14-, and 16-Bit, Pin- and Software-Compatible ADCs
  • Maximum Data Rate per Channel:
    • ADS8528: 650 kSPS (PAR) or
      480 kSPS (SER)
    • ADS8548: 600 kSPS (PAR) or
      450 kSPS (SER)
    • ADS8568: 510 kSPS (PAR) or
      400 kSPS (SER)
  • Excellent AC Performance:
    • Signal-to-Noise Ratio:
      ADS8528: 73.9 dB, ADS8548: 85 dB, ADS8568: 91.5 dB
    • Total Harmonic Distortion:
      ADS8528: –89 dB, ADS8548: –91 dB, ADS8568: –94 dB
  • Programmable, Buffered Internal Reference:
    0.5 V–2.5 V or 0.5 V–3.0 V Supports Input Voltage Ranges up to ±12 V
  • Selectable Parallel or Serial Interface
  • Scalable Low-Power Operation Using Auto-Sleep Mode: Only 32 mW at 10 kSPS
  • Fully Specified Over Extended Industrial Temperature Range

The ADS85x8 contain eight low-power, 12-, 14-, or 16-bit, successive approximation register (SAR)-based analog-to-digital converters (ADCs) with true bipolar inputs. These channels are grouped in four pairs, thus allowing simultaneous high-speed signal acquisition of up to 650 kSPS.

The devices support selectable parallel or serial interface with daisy-chain capability. The programmable reference allows handling of analog input signals with amplitudes up to ±12 V.

The ADS85x8 family supports an auto-sleep mode for minimum power dissipation and is available in both 64-pin VQFN and LQFP packages. The entire family is specified over a temperature range of –40°C to +125°C.

The ADS85x8 contain eight low-power, 12-, 14-, or 16-bit, successive approximation register (SAR)-based analog-to-digital converters (ADCs) with true bipolar inputs. These channels are grouped in four pairs, thus allowing simultaneous high-speed signal acquisition of up to 650 kSPS.

The devices support selectable parallel or serial interface with daisy-chain capability. The programmable reference allows handling of analog input signals with amplitudes up to ±12 V.

The ADS85x8 family supports an auto-sleep mode for minimum power dissipation and is available in both 64-pin VQFN and LQFP packages. The entire family is specified over a temperature range of –40°C to +125°C.
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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Datum
* Data sheet ADS85x8 12-, 14-, and 16-Bit, 8-Channel, Simultaneous Sampling ADCs datasheet (Rev. C) PDF | HTML 03 Feb 2016
Circuit design Circuit for driving an ADC with an instrumentation amplifier in high gain (Rev. A) PDF | HTML 24 Sep 2024
Circuit design Circuit for driving high-voltage SAR ADC with a buffered instrumentation (Rev. A) PDF | HTML 20 Sep 2024
Circuit design Circuit for driving a high-voltage SAR with an instrumentation amplifier (Rev. A) PDF | HTML 18 Sep 2024
E-book Best of Baker's Best: Precision Data Converters -- SAR ADCs 21 Mai 2015
Application note ADS856x Design Challenges and Improvement Techniques for SAR Driver Circuit (Rev. A) 18 Mai 2015
Application note ADS8528, ADS8548, and ADS8568 Timing Considerations 21 Jun 2014
Application note Determining Minimum Acquisition Times for SAR ADCs, part 2 17 Mär 2011

Design und Entwicklung

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Simulationsmodell

ADS8568, ADS8548, ADS8528 IBIS Model (Rev. B)

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