ADC12048 12-Bit Plus Sign 216 kHz 8 Channel Sampling Analog to Digital Converter | TI.com

ADC12048 (ACTIVE)

12-Bit Plus Sign 216 kHz 8 Channel Sampling Analog to Digital Converter

 

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Description

Operating from a single 5V power supply, the ADC12048 is a 12 bit + sign, parallel I/O, self-calibrating, 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.

Features

  • 8-Channel Programmable Differential or Single-Ended Multiplexer
  • Programmable Acquisition Times and User-Controllable 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

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

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Parametrics Compare all products in Precision ADCs (<=10MSPS)

 
Resolution (Bits)
Sample Rate (Max) (kSPS)
Number of input channels
Interface
Operating temperature range (C)
Package Group
Approx. price (US$)
Power consumption (Typ) (mW)
Package size: mm2:W x L (PKG)
Architecture
Input type
Multi-channel configuration
Reference mode
Features
Input range (Max) (V)
Input range (Min) (V)
Analog voltage AVDD (Min) (V)
Analog voltage AVDD (Max) (V)
Digital supply (Min) (V)
Digital supply (Max) (V)
INL (Max) (+/-LSB)
Rating
ADC12048
12    
278    
8    
Parallel    
-40 to 85    
PLCC | 44
QFP | 44    
7.19 | 1ku    
23.75    
44PLCC: 307 mm2: 17.53 x 17.53 (PLCC | 44)
44QFP: 100 mm2: 10 x 10 (QFP | 44)    
SAR    
Differential
Pseudo-Differential
Single-Ended    
Multiplexed    
Ext    
   
5.5    
0    
4.5    
5.5    
4.5    
5.5    
1    
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