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AVDD
AVDD
V
CM
10
4.7 nF
V
IN+
+
V
IN-
+
+
THS4521
V
+
AINP
AINM
GND
AVDD
ADSxx54
10
INPUT DRIVER
ADS8354 : 16-bit, 700 kSPS
ADS7854 : 14-bit, 1 MSPS
ADS7254 : 12-bit, 1 MSPS
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Reference
Design
ADS8354
,
ADS7854
,
ADS7254
SBAS556B –OCTOBER 2013–REVISED AUGUST 2014
ADSxx54 Dual, High-Speed, 16-, 14-, and 12-Bit,
Simultaneous-Sampling, Analog-to-Digital Converters
1 Features 2 Applications
1
• 16-, 14-, and 12-Bit, Pin-Compatible Family
• Motor Control:
Position Measurement Using Encoders
• Simultaneous Sampling of Two Channels
• Optical Networking: EDFA Gain Control Loops
• Supports Fully-Differential Inputs
• Protection Relays
• High Speed:
• Power Quality Measurement
– ADS8354: 16 Bits, 700 kSPS
• Three-Phase Power Controls
– ADS7854: 14 Bits, 1 MSPS
• Programmable Logic Controllers
– ADS7254: 12 Bits, 1 MSPS
• Excellent DC Performance:
3 Description
– ADS8354:
The ADS8354, ADS7854, and ADS7254 belong to a
– 16-Bit NMC DNL, ±2.5-LSB Max INL
family of pin-compatible, dual, high-speed,
simultaneous-sampling, analog-to-digital converters
– ADS7854:
(ADCs) that support fully-differential analog inputs.
– 14-Bit NMC DNL, ±1.5-LSB Max INL
Each device includes two individually programmable
– ADS7254:
reference sources that can be used for system-level
– 12-Bit NMC DNL, ±1-LSB Max INL
gain calibration. Also, a flexible serial interface that
• Excellent AC Performance:
can operate over a wide power-supply range enables
easy communication with a large variety of host
– ADS8354:
controllers. Power consumption for a given
– 93-dB SNR, –100-dB THD
throughput can be optimized by using the two low-
– ADS7854:
power modes supported by the device. All devices
are fully specified over the extended industrial
– 88-dB SNR, –95-dB THD
temperature range (–40°C to 125°C) and are
– ADS7254:
available in pin-compatible, WQFN-16 (3-mm ×
– 72-dB SNR, –90-dB THD
3-mm) and TSSOP-16 packages.
• Dual, Programmable, and Buffered
Device Information
(1)
2.5-V Internal Reference
PART NUMBER PACKAGE BODY SIZE (NOM)
• Fully-Specified Over the Extended Industrial
TSSOP (16) 5.00 mm × 4.40 mm
Temperature Range: –40°C to 125°C
ADSxx54
WQFN (16) 3.00 mm × 3.00 mm
• Small Footprint:
WQFN-16 (3-mm × 3-mm) and TSSOP-16
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Typical Application Diagram
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
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