ADS8350_14 Datasheet, PDF (1/43 Pages) Texas Instruments – ADSxx50 Dual, 750-kSPS, 16-, 14-, and 12-Bit, Simultaneous-Sampling Analog-to-Digital Converters

Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
ADS8350, ADS7850, ADS7250
SBAS580C – MAY 2013 – REVISED JUNE 2014
ADSxx50 Dual, 750-kSPS, 16-, 14-, and 12-Bit, Simultaneous-Sampling,
Analog-to-Digital Converters
1 Features
•1 16-, 14-, and 12-Bit Pin-Compatible Family
• Simultaneously Samples Two Channels
• Pseudo-Differential Analog Inputs
• Fast Throughput: 750 kSPS
• Excellent DC Performance:
– Linearity:
– ADS8350:
16-Bit NMC DNL, ±2.5 LSB, Max INL
– ADS7850:
14-Bit NMC DNL, ±1.5 LSB, Max INL
– ADS7250:
12-Bit NMC DNL, ±1 LSB, Max INL
• Excellent AC Performance:
– ADS8350: 85-dB SNR, –96-dB THD
– ADS7850: 81-dB SNR, –90-dB THD
– ADS7250: 73-dB SNR, –88-dB THD
• Simple Serial Interface
• Fully-Specified Over Extended Industrial
Temperature Range: –40°C to 125°C
• Small Footprint: WQFN-16 (3 mm × 3 mm)
2 Applications
• Motor Control:
Position Measurement Using SinCos Encoders
• Optical Networking:
EDFA Gain Control Loop
• Protection Relays
• Power Quality Measurement
• Three-Phase Power Controls
• Programmable Logic Controllers
• Industrial Automation
3 Description
The ADS8350, ADS7850, and ADS7250 belong to a
family of pin-compatible, dual, high-speed,
simultaneous-sampling, analog-to-digital converters
(ADCs) that support pseudo-differential analog inputs.
All devices support a simple serial interface that can
operate over a wide power-supply range, enabling
easy communication with a large variety of host
controllers.
All devices are fully specified over the extended
industrial temperature range (–40°C to 125°C) and
are available in a pin-compatible, WQFN-16
(3 mm × 3 mm) package.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
ADS7250
ADS7850
WQFN (16)
3.00 mm × 3.00 mm
ADS8350
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
space
space
space
space
Functional Block Diagram
OPA322
-
++
+V
OPA322
-
++
+V
ADS7250,
ADS7850,
ADS8350
AINP
AINM
VREF
OPA322
+
-+
+V
OPA322
+
-+
+V
AINM
AINP
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.