ADS8588H (ACTIVE)

16-Bit 500kSPS 8-Channel Simultaneous-Sampling ADC With Bipolar Inputs on a Single Supply

 

Description

The ADS8588H device is an 8-channel, integrated data acquisition (DAQ) system based on a 16-bit successive approximation (SAR) analog-to-digital converter (ADC). All input channels are simultaneously sampled to achieve a maximum throughput of 500 kSPS per channel. The device features a complete analog front-end for each channel, including a programmable gain amplifier (PGA) with a high input impedance of 1 MΩ, an 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 ADS8588H 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 means the ADS8588H meets the strict design requirements for many industrial automation and control applications.

Features

  • 16-Bit ADC With Integrated Analog Front-End
  • Simultaneous Sampling: 8 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 I/O Supply
  • Overvoltage Input Clamp With 9-kV ESD
  • Low-Drift, On-Chip Reference (2.5 V) and Buffer
  • Performance:
    • 500-kSPS Max Throughput on All Channels
    • DNL: ±0.3 LSB Typ; INL: ±0.5 LSB Typ
    • SNR: 92.7 dB Typ; THD: −110 dB Typ
  • 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: LQFP-64

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

 
Resolution (Bits)
Sample Rate (max) (SPS)
# Input Channels
Input Type
Power Consumption (Typ) (mW)
Input Range (Min) (V)
Input Range (Max) (V)
Interface
Features
Analog Voltage AVDD (Min) (V)
Analog Voltage AVDD (Max) (V)
Architecture
Operating Temperature Range (C)
Pin/Package
THD (Typ) (dB)
SNR (dB)
Reference Mode
ADS8588H ADS8568 ADS8584S ADS8588S ADS8598H ADS8598S
16    16    16    16    18    18   
500000    500000    330000    200000    500000    200000   
8    8    4    8    8    8   
Single-Ended    Single-Ended    Single-Ended    Single-Ended    Single-Ended    Single-Ended   
88.5    335    54.5    88.5    88.5    88.5   
-10    -12    -10    -10    -10    -10   
10    12    10    10    10    10   
Byte-Wide
Parallel
SPI   
Parallel
SPI   
Byte-Wide
Parallel
SPI   
Byte-Wide
Parallel
SPI   
Byte-Wide
Parallel
SPI   
Byte-Wide
Parallel
SPI   
Oscillator
Over-Voltage Protection
PGA   
Daisy-Chainable
Oscillator   
Oscillator
Over-Voltage Protection
PGA   
Oscillator
Over-Voltage Protection
PGA   
Oscillator
Over-Voltage Protection
PGA   
Oscillator
Over-Voltage Protection
PGA   
4.75    4.5    4.75    4.75    4.75    4.75   
5.25    5.5    5.25    5.25    5.25    5.25   
SAR    SAR    SAR    SAR    SAR    SAR   
-40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125   
64LQFP    64LQFP
64VQFN   
64LQFP    64LQFP    64LQFP    64LQFP   
-110    -94    -114    -114    -110    -107   
92.6    91.5    92.7    92.7    94    94   
Ext
Int   
Ext
Int   
Ext
Int   
Ext
Int   
Ext
Int   
Ext
Int   

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