MAX541 Maxim, MAX541 Datasheet
MAX541
Manufacturer Part Number
MAX541
Description
+5V / Serial-Input / Voltage-Output / 16-Bit DACs
Manufacturer
Maxim
Datasheet
1.MAX541.pdf
(12 pages)
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The MAX541/MAX542 are serial-input, voltage-output,
16-bit digital-to-analog converters (DACs) that operate
from a single +5V supply. They provide 16-bit perfor-
mance (±1LSB INL and DNL) over temperature without
any adjustments. The DAC output is unbuffered, result-
ing in a low supply current of 0.3mA and a low offset
error of 1LSB.
The DAC output range is 0V to V
tion, matched scaling resistors are provided in the
MAX542 for use with an external precision op amp
(such as the MAX400), generating a ±V
swing. The MAX542 also includes Kelvin-sense con-
nections for the reference and analog ground pins to
reduce layout sensitivity.
A 16-bit serial word is used to load data into the DAC
latch. The 10MHz, 3-wire serial interface is compatible
with SPI™/QSPI™/MICROWIRE™, and it also interfaces
directly with optocouplers for applications requiring isola-
tion. A power-on reset circuit clears the DAC output to 0V
(unipolar mode) when power is initially applied.
The MAX541 is available in 8-pin plastic DIP and SO
packages. The MAX542 is available in 14-pin plastic
DIP and SO packages.
19-1082; Rev 2; 12/99
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
AGND
OUT
REF
CS
TOP VIEW
+5V, Serial-Input, Voltage-Output, 16-Bit DACs
1
2
3
4
High-Resolution Offset and Gain Adjustment
Industrial Process Control
Automated Test Equipment
Data-Acquisition Systems
MAX541
DIP/SO
________________________________________________________________ Maxim Integrated Products
8
7
6
5
V
DGND
DIN
SCLK
DD
General Description
General Description
AGNDS
AGNDF
REFS
REFF
OUT
RFB
CS
REF
1
2
3
4
5
6
7
Applications
. For bipolar opera-
MAX542
DIP/SO
REF
output
14
13
12
11
10
9
8
V
INV
DGND
LDAC
DIN
N.C.
SCLK
DD
o Full 16-Bit Performance Without Adjustments
o +5V Single-Supply Operation
o Low Power: 1.5mW
o 1µs Settling Time
o Unbuffered Voltage Output Directly Drives 60kΩ
o SPI/QSPI/MICROWIRE-Compatible Serial Interface
o Power-On Reset Circuit Clears DAC Output to 0V
o Schmitt Trigger Inputs for Direct Optocoupler
Ordering Information continued at end of data sheet.
MAX541ACPA
MAX541BCPA
MAX541CCPA
MAX541ACSA
MAX541BCSA
MAX541CCSA
Functional Diagrams continued at end of data sheet.
REFS
LDAC
SCLK
Loads
(unipolar mode)
Interface
REFF
DIN
CS
PART
MAX542
CONTROL
LOGIC
R
INV
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
Ordering Information
Functional Diagrams
SERIAL INPUT REGISTER
DGND
V
16-BIT DATA LATCH
DD
16-BIT DAC
R
FB
8 Plastic DIP
8 Plastic DIP
8 Plastic DIP
8 SO
8 SO
8 SO
PIN-PACKAGE
Features
RFB
INV
OUT
AGNDF
AGNDS
(LSB)
INL
±1
±2
±4
±1
±2
±4
1
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