ADS8517 Low-Power 16-Bit 200kSPS ±10V Bipolar Input SAR ADC With S/P Interface | TI.com

ADS8517 (ACTIVE)

Low-Power 16-Bit 200kSPS ±10V Bipolar Input SAR ADC With S/P Interface

 

Description

The ADS8517 is a complete low-power, single 5-V supply, 16-bit sampling analog-to-digital (A/D) converter. It contains a complete, 16-bit, capacitor-based, successive approximation register (SAR) A/D converter with sample-and-hold, clock, reference, and data interface. The converter can be configured for a variety of input ranges including ±10 V, 4 V, and 5 V. For most input ranges, the input voltage can swing to 25 V or –25 V without damage to the device.

An SPI-compatible serial interface allows data to be synchronized to an internal or external clock. A full parallel interface using the selectable BYTE pin is also provided to allow the maximum system design flexibility. The ADS8517 is specified at a 200-kHz sampling rate over the industrial -40°C to +85°C temperature range.

Features

  • 200-kHz Minimum Sampling Rate
  • 4-V, 5-V, and ±10-V Input Ranges with High-Impedance Input
  • ±1.5 LSB Max INL
  • +1.5/-1 LSB Max/Min DNL, 16 Bits NMC
  • ±2-mV Max BPZ, ±0.6 ppm/°C BPZ Drift
  • ±2-mV Max UPZ, ±0.15 ppm/°C UPZ Drift
  • 88.8-dB SINAD with 10-kHz Input
  • SPI-Compatible Serial Output With Daisy-Chain (TAG), SPI Master/Slave Feature
  • Full Parallel Interface
  • Binary Twos Complement or Straight Binary Output Code Formats
  • Single 4.5-V to 5.5-V Analog Supply, 1.65-V to 5.5-V Interface Supply
  • Uses Internal 2.5-V or External Reference
  • No External Precision Resistors Required
  • Low Power Dissipation (ADC+REF+BUF):
    • 47 mW Typ, 60 mW Max at 200 kSPS
  • 50-µW Max Power-Down Mode
  • Pin-Compatible with 16-Bit ADS7807 and ADS8507, and 12-Bit ADS7806 and ADS8506
  • SO-28 and TSSOP-28 Packages
  • APPLICATIONS
    • Portable Test Equipment
    • USB Data Acquisition Module
    • Medical Equipment
    • Industrial Process Control
    • Digital Signal Processing
    • Instrumentation

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

 
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)
SINAD (dB)
SNR (dB)
THD (Typ) (dB)
Rating
ADS8517
16    
200    
1    
Parallel
SPI    
-40 to 85    
SOIC | 28
TSSOP | 28    
6.50 | 1ku    
60    
28SOIC: 184 mm2: 10.3 x 17.9 (SOIC | 28)
28TSSOP: 62 mm2: 6.4 x 9.7 (TSSOP | 28)    
SAR    
Single-Ended    
   
Ext
Int    
Daisy-Chainable
Oscillator    
10    
-10    
4.5    
5.5    
1.65    
5.25    
1.5    
88.5    
89    
-98    
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