1 Features
1• Family of 12-, 14-, and 16-Bit, Pin- and Software-
Compatible ADCs
• Maximum Data Rate per Channel:
– ADS8528: 650 kSPS (PAR) or
480 kSPS (SER)
– ADS8548: 600 kSPS (PAR) or
450 kSPS (SER)
– ADS8568: 510 kSPS (PAR) or
400 kSPS (SER)
• Excellent AC Performance:
– Signal-to-Noise Ratio:
ADS8528: 73.9 dB, ADS8548: 85 dB,
ADS8568: 91.5 dB
– Total Harmonic Distortion:
ADS8528: –89 dB, ADS8548: –91 dB,
ADS8568: –94 dB
• Programmable, Buffered Internal Reference:
0.5 V–2.5 V or 0.5 V–3.0 V Supports Input
Voltage Ranges up to ±12 V
• Selectable Parallel or Serial Interface
• Scalable Low-Power Operation Using Auto-Sleep
Mode: Only 32 mW at 10 kSPS
• Fully Specified Over Extended Industrial
Temperature Range

2 Applications
• Protection Relays
• Power Quality Measurement
• Multi-Axis Motor Controls
• Programmable Logic Controllers
• Industrial Data Acquisition

3 Description
The ADS85x8 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 650 kSPS.
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 ±12 V.
The ADS85x8 family supports an auto-sleep mode for
minimum power dissipation and is available in both
64-pin VQFN and LQFP packages. The entire family
is specified over a temperature range of –40°C to
+125°C.