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

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Part number Order 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 Order now 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     Catalog