ADC0834A, ADC0838A, ADC0834B, ADC0838B A/D PERIPHERALS WITH SERIAL CONTROL
SLAS007 – AUGUST 1985 – REVISED OCTOBER 1986...
ADC0834A, ADC0838A, ADC0834B, ADC0838B A/D PERIPHERALS WITH SERIAL CONTROL
SLAS007 – AUGUST 1985 – REVISED OCTOBER 1986
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
Conversion Time of 32 µs at
fclock = 250 kHz
Designed to Be Interchangeable With
National Semiconductor ADC0834 and
ADC0838
DEVICE
ADC0834 ADC0838
TOTAL UNADJUSTED ERROR
A SUFFIX
B SUFFIX
± 1 LSB
± 1/2 LSB
± 1 LSB
± 1/2 LSB
description
AD0834 . . . N PACKAGE (TOP VIEW)
V+ CS CH0 CH1 CH2 CH3 DGTL GND
1 2 3 4 5 6 7
14 VCC 13 DI 12 CLK 11 SARS 10 DO 9 REF 8 ANLG GND
ADC0838 . . . N PACKAGE (TOP VIEW)
CH0 CH1 CH2 CH3 CH4 CH5 CH6 CH7 COM DGTL GND
1 2 3 4 5 6 7 8 9 10
20 VCC 19 V + 18 CS 17 DI 16 CLK 15 SARS 14 DO 13 SE 12 REF 11 ANLG GND
ADC0838 . . . FN PACKAGE (TOP VIEW)
CH2 CH1 CH0 VCC V+
These devices are 8-bit successive- approxima-
tion analog-to-digital converters, each with an
input-configurable
multichannel
multi-
plexer and serial input/output. The serial input/
output is configured to interface with standard shift
registers or microprocessors. Detailed informa-
tion on interfacing with most popular microproces-
sors is readily available fro...
