ADS8584S 16-Bit High-Speed 4-Channel Simultaneous-Sampling ADC With Bipolar Inputs on a Single Supply | TI.com

ADS8584S (ACTIVE) 16-Bit High-Speed 4-Channel Simultaneous-Sampling ADC With Bipolar Inputs on a Single Supply

 

Description

The ADS8584S device is an 4-channel, integrated data acquisition (DAQ) system based on a simultaneous-sampling, 16-bit successive approximation (SAR) analog-to-digital converter (ADC) operating at a maximum of 330 kSPS per channel. The device features a complete analog front-end for each channel, including a programmable gain amplifier (PGA) with high input impedance of 1 MΩ, input clamp, low-pass filter, and an ADC input driver. The device also features a low-drift, precision reference with a buffer to drive the ADC. A flexible digital interface supporting serial, parallel, and parallel byte communication enables the device to be used with a variety of host controllers.

The ADS8584S can be configured to accept ±10-V or ±5-V true bipolar inputs using a single 5-V supply. The high input impedance allows direct connection with sensors and transformers, thus eliminating the need for external driver circuits. The high performance and accuracy, along with zero-latency conversions offered by this device, also make the ADS8584S a great choice for many industrial automation and control applications.

Features

  • 16-Bit ADC with Integrated Analog Front-End
  • Simultaneous Sampling: 4-Channels
  • Pin-Programmable Bipolar Inputs: ±10 V and ±5 V
  • High Input Impedance: 1 MΩ
  • 5-V Analog Supply: 2.3-V to 5-V Digital Supply
  • Overvoltage Input Clamp with 7-kV ESD
  • Low-Drift, On-Chip Reference (2.5 V) and Buffer
  • Excellent Performance:
    • 330-kSPS Max Throughput per Channel
    • DNL: ±0.35 LSB; INL: ±0.45 LSB
    • SNR: 96.4 dB; THD: −114 dB
  • Over Temperature Performance:
    • Max Offset Drift: 3 ppm/°C
    • Gain Drift: 6 ppm/°C
  • On-Chip Digital Filter for Oversampling
  • Flexible Parallel, Byte, and Serial Interface
  • Temperature Range: –40°C to +125°C
  • Package: 64-Pin LQFP

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Parametrics

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Part number Order 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) SNR (dB) THD (Typ) (dB) Rating
ADS8584S Order now 16     330     4     Byte-Wide
Parallel
SPI    
-40 to 125     LQFP | 64     8.00 | 1ku     54.5     64LQFP: 144 mm2: 12 x 12 (LQFP | 64)     SAR     Single-Ended     Simultaneous Sampling     Ext
Int    
Oscillator
Over-Voltage Protection
PGA    
10     -10     4.75     5.25     2.3     5.25     1.5     92.7     -114     Catalog    
ADS8568 Order now 16     500     8     Parallel
SPI    
-40 to 125     LQFP | 64
VQFN | 64    
11.75 | 1ku     335     64LQFP: 144 mm2: 12 x 12 (LQFP | 64)
64VQFN: 81 mm2: 9 x 9 (VQFN | 64)    
SAR     Single-Ended     Simultaneous Sampling     Ext
Int    
Daisy-Chainable
Oscillator    
12     -12     4.5     5.5     2.7     5.5     3     91.5     -94     Catalog    
ADS8578S Order now 14     200     8     Byte-Wide
Parallel
SPI    
-40 to 125     LQFP | 64     10.50 | 1ku     88.5     64LQFP: 144 mm2: 12 x 12 (LQFP | 64)     SAR     Single-Ended     Simultaneous Sampling     Ext
Int    
Oscillator
Over-Voltage Protection
PGA    
10     -10     4.75     5.25     2.3     5     0.45     85.8     -114     Catalog    
ADS8586S Order now 16     250     6     Byte-Wide
Parallel
SPI