ADS8354 Datasheet, PDF (1/69 Pages) Texas Instruments – Simultaneous-Sampling, Analog-to-Digital Converters

Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
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
•1 16-, 14-, and 12-Bit, Pin-Compatible Family
• Simultaneous Sampling of Two Channels
• Supports Fully-Differential Inputs
• High Speed:
– ADS8354: 16 Bits, 700 kSPS
– ADS7854: 14 Bits, 1 MSPS
– ADS7254: 12 Bits, 1 MSPS
• Excellent DC Performance:
– ADS8354:
– 16-Bit NMC DNL, ±2.5-LSB Max INL
– ADS7854:
– 14-Bit NMC DNL, ±1.5-LSB Max INL
– ADS7254:
– 12-Bit NMC DNL, ±1-LSB Max INL
• Excellent AC Performance:
– ADS8354:
– 93-dB SNR, –100-dB THD
– ADS7854:
– 88-dB SNR, –95-dB THD
– ADS7254:
– 72-dB SNR, –90-dB THD
• Dual, Programmable, and Buffered
2.5-V Internal Reference
• Fully-Specified Over the Extended Industrial
Temperature Range: –40°C to 125°C
• Small Footprint:
WQFN-16 (3-mm × 3-mm) and TSSOP-16
2 Applications
• Motor Control:
Position Measurement Using Encoders
• Optical Networking: EDFA Gain Control Loops
• Protection Relays
• Power Quality Measurement
• Three-Phase Power Controls
• Programmable Logic Controllers
3 Description
The ADS8354, ADS7854, and ADS7254 belong to a
family of pin-compatible, dual, high-speed,
simultaneous-sampling, analog-to-digital converters
(ADCs) that support fully-differential analog inputs.
Each device includes two individually programmable
reference sources that can be used for system-level
gain calibration. Also, a flexible serial interface that
can operate over a wide power-supply range enables
easy communication with a large variety of host
controllers. Power consumption for a given
throughput can be optimized by using the two low-
power modes supported by the device. All devices
are fully specified over the extended industrial
temperature range (–40°C to 125°C) and are
available in pin-compatible, WQFN-16 (3-mm ×
3-mm) and TSSOP-16 packages.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
ADSxx54
TSSOP (16)
WQFN (16)
5.00 mm × 4.40 mm
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Typical Application Diagram
VIN+
VCM
VIN-
1 K 
1 K 
AVDD
VREF
++ _-
THS4521
-+
10 
4.7 nF
10 
AVDD
AVDD
VAINP
+
ADSxx54
AINM
GND
1 K 
1 K 
INPUT DRIVER
ADS8354 : 16-bit, 700 kSPS
ADS7854 : 14-bit, 1 MSPS
ADS7254 : 12-bit, 1 MSPS
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.