MAX544BESA+ Maxim Integrated Products, MAX544BESA+ Datasheet

IC DAC 14BIT 5V SERIAL 8-SOIC

MAX544BESA+

Manufacturer Part Number
MAX544BESA+
Description
IC DAC 14BIT 5V SERIAL 8-SOIC
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX544BESA+

Settling Time
1µs
Number Of Bits
14
Data Interface
Serial
Number Of Converters
1
Voltage Supply Source
Single Supply
Power Dissipation (max)
471mW
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX544/MAX545 are serial-input, voltage-output,
14-bit digital-to-analog converters (DACs) that operate
from a single +5V supply. They provide 14-bit perfor-
mance (±0.5LSB INL and ±0.9LSB DNL) over tempera-
ture without any adjustments. The DAC output is
unbuffered, resulting in a low supply current of 0.3mA
and a low offset error of 0.6mV.
The DAC output range is 0V to V
tion, matched scaling resistors are provided in the
MAX545 for use with an external precision op amp
(such as the MAX400), generating a ±V
swing. The MAX545 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 MAX544 is available in 8-pin plastic DIP and SO
packages. The MAX545 is available in 14-pin plastic
DIP and SO packages.
19-1088; Rev 3; 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, 14-Bit DACs
1
2
3
4
Digital Offset and Gain Adjustment
Instrumentation
Industrial Process Control
Automated Test Equipment
Data-Acquisition Systems
DIP/SO
MAX544
________________________________________________________________ Maxim Integrated Products
8
7
6
5
V
DGND
DIN
SCLK
General Description
DD
Pin Configurations
AGNDF
AGNDS
REFS
REFF
OUT
RFB
CS
REF.
1
2
3
4
5
6
7
Applications
For bipolar opera-
MAX545
DIP/SO
REF
14
13
12
11
10
8
9
output
V
INV
DGND
LDAC
DIN
N.C.
SCLK
DD
o Full 14-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
o Pin-Compatible 16-Bit Upgrades
Ordering Information continued at end of data sheet.
MAX544ACPA
MAX544BCPA
MAX544ACSA
MAX544BCSA
Functional Diagrams continued at end of data sheet.
Loads
(unipolar mode)
Interface
(MAX541/MAX542)
REFS
LDAC
SCLK
REFF
DIN
CS
PART
MAX545
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
Ordering Information
Functional Diagrams
SERIAL INPUT REGISTER
DGND
V
DD
DATA LATCH
R
14-BIT DAC
FB
PIN-PACKAGE
8 Plastic DIP
8 Plastic DIP
8 SO
8 SO
Features
RFB
INV
OUT
AGNDF
AGNDS
(LSB)
±1/2
±1/2
INL
±1
±1
1

Related parts for MAX544BESA+

MAX544BESA+ Summary of contents

Page 1

... DIP/SO SPI and QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp. ________________________________________________________________ Maxim Integrated Products 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. o Full 14-Bit Performance Without Adjustments o +5V Single-Supply Operation o Low Power: 1.5mW o 1µ ...

Page 2

Serial-Input, Voltage-Output, 14-Bit DACs ABSOLUTE MAXIMUM RATINGS V to DGND ...........................................................-0.3V to +6V DD CS, SCLK, DIN, LDAC to DGND ..............................-0.3V to +6V REF, REFF, REFS to AGND ........................-0. AGND, AGNDF, AGNDS to DGND .......................-0.3V to +0.3V ...

Page 3

Serial-Input, Voltage-Output, 14-Bit DACs ELECTRICAL CHARACTERISTICS (continued +5V ± 5 +2.5V, AGND = DGND = REF PARAMETER SYMBOL DYNAMIC PERFORMANCE—REFERENCE SECTION Reference -3dB Bandwidth BW Reference Feedthrough Signal-to-Noise Ratio SNR Reference Input ...

Page 4

Serial-Input, Voltage-Output, 14-Bit DACs ( +2.5V +25°C, unless otherwise noted.) DD REF A SUPPLY CURRENT vs. TEMPERATURE 0.50 0.45 0.40 0.35 0.30 0.25 0.20 -40 - 100 TEMPERATURE ...

Page 5

Serial-Input, Voltage-Output, 14-Bit DACs (V = +5V +2.5V +25°C, unless otherwise noted.) DD REF A FULL-SCALE STEP RESPONSE (f = 10MHz) SCLK 2µs/div 1µs/div MAJOR-CARRY OUTPUT GLITCH 2µs/div MAX544 PIN NAME 1 OUT 2 AGND ...

Page 6

Serial-Input, Voltage-Output, 14-Bit DACs MAX545 PIN NAME 1 RFB 2 OUT 3 AGNDF 4 AGNDS 5 REFS 6 REFF SCLK 9 N.C. 10 DIN LDAC 11 12 DGND 13 INV CSHO ...

Page 7

Serial-Input, Voltage-Output, 14-Bit DACs MC68XXXX PCS0 MOSI SCLK (GND ARE FOR MAX545 ONLY Figure 2a. Typical Operating Circuit—Unipolar Output 0.1µF MC68XXXX PCS0 MOSI SCLK IC1 (GND) Figure 2b. Typical Operating Circuit—Bipolar Output Detailed Description The MAX544/MAX545 voltage-output, ...

Page 8

Serial-Input, Voltage-Output, 14-Bit DACs Digital Interface The MAX544/MAX545’s digital interface is a standard 3-wire connection compatible with SPI/QSPI/ MICROWIRE interfaces. The chip-select input (CS) frames the serial data loading at the data-input pin (DIN). Immediately following CS’s high-to-low transition, ...

Page 9

Serial-Input, Voltage-Output, 14-Bit DACs Applications Information Reference and Analog Ground Inputs The MAX544/MAX545 operate with external voltage ref- erences from 2V to 3V, and maintain 14-bit performance if certain guidelines are followed when selecting and applying the reference. Ideally, ...

Page 10

Serial-Input, Voltage-Output, 14-Bit DACs amplifier’s input resistance forms a resistive divider with the DAC output resistance, which results in a gain error. To contribute less than 1/2LSB of gain error, the input resistance typically must be greater than:  ...

Page 11

Serial-Input, Voltage-Output, 14-Bit DACs Ordering Information (continued) PART TEMP. RANGE PIN-PACKAGE MAX544AEPA -40°C to +85°C 8 Plastic DIP MAX544BEPA -40°C to +85°C 8 Plastic DIP MAX544AESA -40°C to +85° MAX544BESA -40°C to +85° MAX545ACPD 0°C ...

Page 12

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 1999 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products ...

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