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ADC12048
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SNAS105B – APRIL 2000 – REVISED MARCH 2013
ADC12048 12-Bit Plus Sign 216 kHz 8-Channel Sampling Analog-to-Digital Converter
Check for Samples: ADC12048
FEATURES
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•2 8-Channel Programmable Differential or Single-Ended Multiplexer
• Programmable Acquisition Times and UserControllable Throughput Rates
• Programmable Data Bus Width (8/13 bits) • Built-in Sample-and-Hold • Programmable Auto-Calibration and Auto-Zero
cycles • Low Power Standby Mode • No Missing Codes
APPLICATIONS
• Medical Instrumentation • Process Control Systems • Test Equipment • Data Logging • Inertial Guidance
KEY SPECIFICATIONS
• (fCLK = 12 MHz) • Resolution: 12-Bits + Sign • 13-Bit Conversion Time: 3.6 μs, Max • 13-Bit Throughput Rate: 216 ksamples/s, Min • Integral Linearity Error (ILE): ±1 LSB, Max • Single Supply: +5 V ±10% • VIN Range: GND to VA+ • Power Consumption
– Normal Operation: 34 mW, Max – Stand-By Mode: 75 μw, Max
DESCRIPTION
Operating from a single 5V power supply, the ADC12048 is a 12 bit + sign, parallel I/O, selfcalibrating, sampling analog-to-digital converter (ADC) with an eight input fully differential analog multiplexer. The maximum sampling rate is 216 kHz. On request, the ADC goes through a self-calibration process that adjusts linearity, zero and full-scale errors.
The ADC12048's 8-channel multiplexer is software programmable to operate in a variety of combinations of single-ended, differential, or pseudo-differential modes. The fully differential MUX and the 12-bit + sign ADC allows for the difference between two signals to be digitized.
The ADC12048 can be configured to work with many popular microprocessors/microcontrollers and DSPs including Tl's HPC family, Intel386 and 8051, TMS320C25, Motorola MC68HC11/16, Hitachi 64180 and Analog Devices ADSP21xx.
For complementary voltage references see the LM4040, LM4041 or LM9140.
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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.
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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 © 2000–2013, Texas Instruments Incorporated
ADC12048
SNAS105B – APRIL 2000 – REVISED MARCH 2013
Block Diagram
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Connection Diagrams
Figure 1. PLCC Package See Package Number FN0044A
Figure 2. LQFP Package See Package Number PGB0044A
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Product Folder Links: ADC12048
Copyright © 2000–2013, Texas Instruments Incorporated
www.ti.com
PLCC Pkg. Pin Number 6 7 8 9 15 16 17 18 14 13
12
19 21 20 22 24
25
26–31 34–40
43 44
1 2 3
4
ADC12048
PQFP Pkg. Pin Number
44 1 2 3 9 10 11 12 8 7
6
13 15 14 16 18
19
20–25 29–34
37 38
39 40 41
42
Pin Name .