ADC0809 8-bit µP Compatible Analog to Digital Converter with 8-Channel Analog Multiplexer Shield Module
The ADC0809 Data Acquisition Device (DAD) implement most of the elements of the standard data acquisition system on a single chip. It contains an 8-bit A/D converter, an 8-channel multiplexer with an address input latch, and associated control logic. This device provides most of the logic to interface to a variety of microcontrollers with the addition of a minimum number of parts which are included in the kit. This converter, the ADC0809, has an unadjusted error of ±1 LSB. This converter typically does a conversion in ∼100µs when using a 640kHz clock but can convert a single input in as little as ∼50µs.
This Analog-to-Digital Converter offers 8 analog input channels that can be selected using a 3-bit analog multiplexer (MUX). By selecting an analog voltage at the input an equivalent digital value can be found at the TRI-STATE® output pins (D0-D7). This value is in BCD (Binary Coded Decimal) and has to be converted to other user friendly formats (Binary, Decimal or Hex) for further analysis and processing.
Specifications:
- ADC Subfamily: Precision ADC (<= 10 MSPS)
- Operating Vcc Range: 5 – 6 VDC
- Vref (+) – Top of the ladder: Vcc
- Vref (+) + Vref(-) / 2 – Center of the ladder: Vcc/2
- Vref (-) – Bottom of the ladder: 0V
- Resolution: 8 bits
- Integral Nonlinearity (INL) / Error: ± 1 LSB
- Conversion Time: 100 µS
- Interface: Parallel
- Number of Input Channels: 8 (selected using addressing logic with 3-bit MUX)
- Number of Output Channels: 1 (8-bit parallel output)
- Operating Temperature Range: -40 – 85 °C
- PCB Assembly Dimensions: 52 x 33 x 12 mm / 2.04 x 1.30 x 0.47 ”
WARNING
