ADS8528
ADS8548
ADS8568
www.ti.com
SBAS543A –AUGUST 2011–REVISED OCTOBER 2011
12-, 14-, 16-Bit, Eight-Channel, Simultaneous Sampling
ANALOG-TO-DIGITAL CONVERTERS
Check for Samples: ADS8528, ADS8548, ADS8568
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FEATURES
DESCRIPTION
The ADS8528/48/68 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 650kSPS.
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•
Family of 12-, 14-, 16-Bit, Pin- and
Software-Compatible ADCs
•
Maximum Data Rate Per Channel:
–
–
–
ADS8528: 650kSPS (PAR) or
480kSPS (SER)
ADS8548: 600kSPS (PAR) or
450kSPS (SER)
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 ±12V.
ADS8568: 510kSPS (PAR) or
400kSPS (SER)
The ADS8528/48/68 family supports an auto-sleep
mode for minimum power dissipation and is available
in both QFN-64 and LQFP-64 packages. The entire
family is specified over a temperature range of –40°C
to +125°C.
•
Excellent AC Performance:
–
Signal-to-Noise Ratio:
ADS8528: 73.9dB
ADS8548: 85dB
ADS8568: 91.5dB
–
Total Harmonic Distortion:
ADS8528: –89dB
Clock
Generator
ADS8548: –91dB
ADS8568: –94dB
CH_A0
CH_A1
CH_B0
CH_B1
CH_C0
CH_C1
CH_D0
CH_D1
SAR ADC
SAR ADC
SAR ADC
SAR ADC
SAR ADC
SAR ADC
SAR ADC
SAR ADC
•
Programmable and Buffered Internal
Reference: 0.5V to 2.5V or 0.5V to 3.0V
Supports Input Voltage Ranges of Up to ±12V
Control
Signal
Bus
Control
Logic
•
•
Selectable Parallel or Serial Interface
Scalable Low-Power Operation Using
Auto-Sleep Mode: Only 32mW at 10kSPS
•
Fully Specified Over the Extended Industrial
Temperature Range
Config
Register
APPLICATIONS
•
•
•
•
•
Protection Relays
Parallel
or Serial
Data Bus
Power Quality Measurement
Multi-Axis Motor Control
Programmable Logic Controllers
Industrial Data Acquisition
I/O
2.5/3V
Reference
REFIO
String DAC
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Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2011, Texas Instruments Incorporated