ADC0838B

Features:

8-Bit  Resolution
Easy Microprocessor Interface or Stand-Alone Operation
Operates Ratiometrically or With 5-V Reference
4- or 8-Channel Multiplexer Options With Address Logic
Shunt Regulator Allows Operation With High-Voltage Supplies
Input Range 0 to 5 V With Single 5-V Supply
Remote Operation With Serial Data Link
Inputs and Outputs are Compatible With TTL and MOS


Pinout




Specifications

Supply voltage, VCC (see Notes 1 and 2)    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . 6.5 V
Input voltage range: Logic    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . 0.3 V to 15 V
Analog    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      0.3 V to VCC+ 0.3 V
Input current: V+ input    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      . . . . . . 15 mA
Any other input   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±5 mA
Total input current for package    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  ±20 mA
Operating free-air temperature range: AC and BC suffixes    . . . . . . . . . . . . . . . . . . .0°C to 70°C
AI and BI suffixes    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . .   40°C to 85°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C
Case temperature for 10 seconds: FN package   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .260°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: N package    . . . . . . . . .  260°C


Description

These devices ADC0834 (4-channel) and ADC0838 (8-channel) are 8-bit successive- approximation analog-to-digital converters, each with an input-configurable multichannel multiplexer and serial input/output. The serial input/ output is configured to interface with standard shift registers or microprocessors. Detailed information on interfacing with most popular microprocessors is readily available from the factory.

The ADC0834 (4-channel) and ADC0838 (8-channel) multiplexer is software configured forsingle-ended or differential inputs as well as pseudo-differential input assignments. The differential analog voltage input allows for commonmode rejection or offset of the analog zero input voltage value. In addition, the voltage reference input can be adjusted to allow encoding any smaller analog voltage span to the full 8 bits of resolution.