ADC12030 Datasheet, PDF (1/52 Pages) Texas Instruments – 12-Bit Plus Sign Serial I/O A/D Converters

www.ti.com
ADC12030, ADC12032, ADC12034
ADC12038, ADC12H030, ADC12H032
ADC12H034, ADC12H038
SNAS080K – JULY 1999 – REVISED MARCH 2013
Self-Calibrating 12-Bit Plus Sign Serial I/O A/D Converters with MUX and Sample/Hold
Check for Samples: ADC12030, ADC12032, ADC12034, ADC12038, ADC12H030, ADC12H032, ADC12H034, ADC12H038
FEATURES
1
•2 Serial I/O (MICROWIRE Compatible)
• 2, 4, or 8 Chan Differential or Single-Ended
Multiplexer
• Analog Input Sample/Hold Function
• Power Down Mode
• Variable Resolution and Conversion Rate
• Programmable Acquisition Time
• Variable Digital Output Word Length and
Format
• No Zero or Full Scale Adjustment Required
• Fully Tested and Ensured with a 4.096V
Reference
• 0V to 5V Analog Input Range with Single 5V
Power Supply
• No Missing Codes over Temperature
APPLICATIONS
• Medical Instruments
• Process Control Systems
• Test Equipment
KEY SPECIFICATIONS
• Resolution 12-bit plus sign
• 12-bit plus sign conversion time
– ADC12H30 family 5.5 μs (max)
– ADC12030 family 8.8 μs (max)
• 12-bit plus sign throughput time
– ADC12H30 family 8.6 μs (max)
– ADC12030 family 14 μs (max)
• Integral Linearity Error ±1 LSB (max)
• Single Supply 5V ±10%
• Power consumption 33 mW (max)
– Power down 100 μW (typ)
DESCRIPTION
NOTE: Some of these devices may be obsolete
and are described and shown here for reference
only. See our web site for product availability.
The ADC12030, and ADC12H030 families are 12-bit
plus sign successive approximation Analog-to-Digital
Converters with serial I/O and configurable input
multiplexers. The ADC12034/ADC12H034 and
ADC12038/ADC12H038 have 4 and 8 channel
multiplexers, respectively. The differential multiplexer
outputs and ADC inputs are available on the
MUXOUT1, MUXOUT2, A/DIN1 and A/DIN2 pins.
The ADC12030/ADC12H030 has a two channel
multiplexer with the multiplexer outputs and ADC
inputs internally connected. The ADC12030 family is
tested with a 5 MHz clock, while the ADC12H030
family is tested with an 8 MHz clock. On request,
these ADCs go through a self calibration process that
adjusts linearity, zero and full-scale errors to less
than ±1 LSB each.
The analog inputs can be configured to operate in
various combinations of single-ended, differential, or
pseudo-differential modes. A fully differential unipolar
analog input range (0V to +5V) can be
accommodated with a single +5V supply. In the
differential modes, valid outputs are obtained even
when the negative inputs are greater than the positive
because of the 12-bit plus sign output data format.
The serial I/O is configured to comply with NSC
MICROWIRE. For voltage references see the
LM4040, LM4050 or LM4041.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
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.
Copyright © 1999–2013, Texas Instruments Incorporated