ADC0848 8-Bit Microprocessor Compatible A/D Converter with Multiplexer Option | TI.com

ADC0848 (ACTIVE)

8-Bit Microprocessor Compatible A/D Converter with Multiplexer Option

 

Description

The ADC0844 and ADC0848 are CMOS 8-bit successive approximation A/D converters with versatile analog input multiplexers. The 4-channel or 8-channel multiplexers can be software configured for single-ended, differential or pseudo-differential modes of operation.

The differential mode provides low frequency input common mode rejection and allows offsetting the analog range of the converter. In addition, the A/D's reference can be adjusted enabling the conversion of reduced analog ranges with 8-bit resolution.

The A/Ds are designed to operate from the control bus of a wide variety of microprocessors. TRI-STATE output latches that directly drive the data bus permit the A/Ds to be configured as memory locations or I/O devices to the microprocessor with no interface logic necessary.

Features

  • Easy Interface to All Microprocessors
  • Operates Ratiometrically or with 5 VDC Voltage Reference
  • No Zero or Full-Scale Adjust Required
  • 4-Channel or 8-Channel Multiplexer with Address Logic
  • Internal Clock
  • 0V to 5V Input Range with Single 5V Power Supply
  • Standard Width 20-Pin or 24-Pin PDIP
  • 28 Pin PLCC Package

Key Specifications

  • Resolution: 8 Bits
  • Total Unadjusted Error: ±½ LSB and ± 1 LSB
  • Single Supply: 5 VDC
  • Low Power: 15 mW
  • Conversion Time: 40 μs

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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
ADC0848
8    
25    
8    
Parallel    
-40 to 85    
PLCC | 28    
3.09 | 1ku    
5    
28PLCC: 155 mm2: 12.45 x 12.45 (PLCC | 28)    
SAR    
Differential
Pseudo-Differential
Single-Ended    
Multiplexed    
Ext    
   
6    
0    
4.5    
6    
4.5    
6    
1    
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