Manualshelf

Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsData collecting ICsData acquisition IC - ADC/DAC 12 Bit PWQFN 40
12345678910
AMC7823
www.ti.com
SLAS453F –APRIL 2005–REVISED MARCH 2012
TERMINAL FUNCTIONS (continued)
TERMINAL
DESCRIPTION
NO. NAME
11 CH0 Analog input channel 0
12 CH1 Analog input channel 1
13 CH2 Analog input channel 2
14 CH3 Analog input channel 3
15 AGND Analog ground
16 AVDD Analog power supply, +3V to +5V. Must be the same value as DVDD.
17 CH4 Analog input channel 4
18 CH5 Analog input channel 5
19 CH6 Analog input channel 6
20 CH7 Analog input channel 7
When external reference connects here, the internal reference is overridden. When internal reference
21 EXT_REF_IN is selected, this pin works as output of the internal reference (with 10kΩ output impedance). See
Reference section for details.
22 DAC 4_OUT Output of DAC 4
23 DAC 5_OUT Output of DAC 5
24 DAC 6_OUT Output of DAC 6
25 DAC 7_OUT Output of DAC 7
26 RESET Reset input. Logic low on this pin causes the part to perform hardware reset.
27 GPIO-0/ALR0 Multiple function I/O pin. Works as digital I/O or ALR pin of the first analog input.
28 GPIO-1/ALR1 Multiple function I/O pin. Works as digital I/O or ALR pin of the second analog input.
29 GPIO-2/ALR2 Multiple function I/O pin. Works as digital I/O or ALR pin of the third analog input.
30 GPIO-3/ALR3 Multiple function I/O pin. Works as digital I/O or ALR pin of the fourth analog input.
External conversion trigger. The rising edge starts sampling and conversion of the ADC when
31 CONVERT
external trigger mode is selected.
32 SCLK Serial clock input
33 MOSI Master out, slave in. Digital data input for the serial interface
34 MISO Master in, slave out. Digital data output for the serial interface
Slave select input (active low). Data is not clocked into MOSI unless SS is low. When SS is high,
35 SS
MISO is in high-impedance status.
36 BVDD Interface power supply. Connects to 3V for 3V logic; connects to 5V for 5V logic.
37 DVDD Digital power supply (+3V to +5V). Must be the same value as AVDD.
38 DGND Digital ground
39 GPIO-4 General-purpose digital I/O pin
40 GPIO-5 General-purpose digital I/O pin
Copyright © 2005–2012, Texas Instruments Incorporated Submit Documentation Feedback 9
Product Folder Link(s): AMC7823