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DAC60004IDMDR Datasheet(PDF) 18 Page - Texas Instruments

Part # DAC60004IDMDR
Description  DACx0004, Quad 16-,14-,12-Bit, 1 LSB INL, Buffered, Voltage-Output Digital-to-Analog Converters
PDF  44 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

DAC60004IDMDR Datasheet(HTML) 18 Page - Texas Instruments

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VOUTA
DAC
Register
DAC
Buffer
BUF
REF
BUF
Channel A
Channel B
Channel C
Channel D
Power Down Logic
Resistive Network
Power On Reset
DACx0004
VOUTB
VOUTC
VOUTD
REFIN
SCLK
SDIN
SYNC
GND
VDD
DAC
SDO
CLR
LDAC
POR
Copyright © 2016, Texas Instruments Incorporated
IN
OUT
N
D
V
=
x REFIN
2
æ
ö
ç
÷
è
ø
2R
R
2R
S0
2R
S1
R
2R
S11
2R
S12
2R
S13
2R
S15
REFIN
V
OUT
Buffer
Buffer
18
DAC80004, DAC70004, DAC60004
SLASED6D – APRIL 2016 – REVISED DECEMBER 2017
www.ti.com
Product Folder Links: DAC80004 DAC70004 DAC60004
Submit Documentation Feedback
Copyright © 2016–2017, Texas Instruments Incorporated
8 Detailed Description
8.1 Overview
The DAC80004, DAC70004, and DAC60004 are quad-channel, 16-bit, voltage-output DACs with internal
reference buffers and output buffers. Each channel consists of an R-2R ladder configuration with the 4 MSBs
segmented, followed by an operational amplifier, as shown in Figure 51. The DACx0004 devices have a constant
impedance (30 kΩ typical), buffered reference input. The output of the reference buffers drives the R-2R ladders.
With the production trim process these devices have excellent dc accuracy and ac performance.
Figure 51. DACx0004 Architecture
The input coding to the DACx0004 is straight binary, so the ideal output voltage is given by Equation 1:
(1)
Where:
N = resolution in bits; either 16 (DAC80004), 14 (DAC70004) or 12 (DAC60004)
DIN = decimal equivalent of the binary code that is loaded to the DAC register. DIN ranges from 0 to 2
N –1
REFIN = DAC reference voltage
8.2 Functional Block Diagram



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