ADS8515_14 Datasheet, PDF (1/23 Pages) Texas Instruments – 16-Bit 250-kSPS Sampling CMOS ANALOG-TO-DIGITAL CONVERTER

ADS8515
www.ti.com
SLAS460D – JUNE 2007 – REVISED SEPTEMBER 2010
16-Bit 250-kSPS Sampling CMOS ANALOG-TO-DIGITAL CONVERTER
Check for Samples: ADS8515
FEATURES
1
•2 Standard ±10-V Input Range
• 90-dB Min SNR with 20-kHz Input
• ±2.0 LSB Max INL
• ±1 LSB Max DNL, 16 Bits, No Missing Code
• 5-V Analog Supply, Flexible I/O Supply Voltage
at 1.65 V to 5.25 V
• Pin-Compatible with ADS7805/10 (Low Speed),
and 12-Bit ADS7804/8504
• Uses Internal or External Reference
• Full Parallel Data Output
• 100-mW Typ Power Dissipation at 250 kSPS
• 28-Pin SSOP Package
APPLICATIONS
• Industrial Process Control
• Data Acquisition Systems
• Digital Signal Processing
• Medical Equipment
• Instrumentation
DESCRIPTION
The ADS8515 is a complete 16-bit sampling
analog-to-digital (A/D) converter using state-of-the-art
CMOS structures. It contains a complete 16-bit,
capacitor-based, SAR A/D converter with sample and
hold (S/H), reference, clock, interface for
microprocessor use, and 3-state output drivers.
The ADS8515 is specified at a 250-kHz sampling rate
over the full temperature range. Precision resistors
provide an industry standard ±10-V input range, while
the innovative design allows operation from a single
+5-V supply, with power dissipation under 100 mW.
The ADS8515 is available in a 28-pin SSOP package
and is fully specified for operation over the industrial
–40°C to 85°C temperature range.
Clock
Successive Approximation Register and Control Logic
R/C
CS
BYTE
BUSY
± 10 V Input
7 kΩ
CAP
2 kΩ
25.67 kΩ
REF
CDAC
Buffer
4 kΩ
Internal
+4.096 V Ref
Comparator
Output
Latches
and
Three
State
Drivers
Three
State
Parallel
Data
Bus
1
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2
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.
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