Family of 16-, 14-, 12-Bit, Pin- and
Six SAR ADCs Grouped in Three Pairs
Maximum Data Rate Per Channel with Internal
Conversion Clock and Reference:
ADS8556: 630 kSPS (PAR) or 450 kSPS (SER)
ADS8557: 670 kSPS (PAR) or 470 kSPS (SER)
ADS8558: 730 kSPS (PAR) or 500 kSPS (SER)
Maximum Data Rate with External Conversion
Clock and Reference:
800 kSPS (PAR) or 530 kSPS (SER)
Pin-Selectable or Programmable Input Voltage
Ranges: Up to ±12 V
The ADS855x contains six low-power, 16-, 14-, or 12-bit, successive approximation
register (SAR) based analog-to-digital converters (ADCs) with true bipolar inputs. Each channel
contains a sample-and-hold circuit that allows simultaneous high-speed multi-channel signal
The ADS855x supports data rates of up to 730 kSPS in parallel interface mode or up to 500
kSPS if the serial interface is used. The bus width of the parallel interface can be set to eight
or 16 bits. In serial mode, up to three output channels can be activated.
The ADS855x is specified over the full industrial temperature range of 40°C to 125°C and
is available in an LQFP-64 package.
The ADS855xEVM is designed for the prototyping and evaluation of the ADS8556, ADS8557 or ADS8558 analog-to-digital converters (ADC). These 16/14/12-bit, capacitor-based, SAR/ADCs operate at a sampling rates up to 730kSPS. The EVM allows the use of optional dual channel buffer amplifiers U1, U5 and (...)
Full-featured evaluation board for the ADS8556, ADS8557 or ADS8558 parallel/serial Analog to Digital Converter.
Onboard or off board references using on board jumpers
Compatible with the 5-6k Interface board, DSK Starter Kits and HPA-MCU Interface