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PDF MAX5544 Data sheet ( Hoja de datos )
| Número de pieza | MAX5544 | |
| Descripción | Low-Cost / +5V / Serial-Input / Voltage-Output / 14-Bit DAC | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MAX5544 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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19-1571; Rev 0; 12/99
Low-Cost, +5V, Serial-Input,
Voltage-Output, 14-Bit DAC
General Description
The MAX5544 serial-input, voltage-output, 14-bit
monotonic digital-to-analog converter (DAC) operates
from a single +5V supply. The DAC output is
unbuffered, resulting in low 0.3mA supply current and
low 1LSB offset error. The DAC output range is 0V to
VREF. The DAC latch accepts a 16-bit serial word. A
power-on reset circuit clears the DAC output to 0V
(unipolar mode) when power is initially applied.
The 10MHz 3-wire serial interface is SPI™/QSPI™/
MICROWIRE™ compatible and interfaces directly with
optocouplers for applications requiring isolation. The
MAX5544 is available in an 8-pin SO package.
Features
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
Loads
o SPI/QSPI/MICROWIRE-Compatible Serial Interface
o Power-On Reset Circuit Clears DAC Output to 0V
(unipolar mode)
o Schmitt Trigger Inputs for Direct Optocoupler
Interface
Applications
High-Resolution Offset and Gain Adjustment
Industrial Process Control
Automated Test Equipment
Data Acquisition Systems
PART
MAX5544CSA
MAX5544ESA
Ordering Information
TEMP. RANGE
0°C to +70°C
-40°C to +85°C
PIN-PACKAGE
8 SO
8 SO
TOP VIEW
Pin Configuration
OUT 1
AGND 2
REF 3
CS 4
MAX5544
8 VDD
7 DGND
6 DIN
5 SCLK
SO
Functional Diagram
MAX5544
REF
VDD
14-BIT DAC
CS
DIN
SCLK
CONTROL
LOGIC
16-BIT DATA LATCH
SERIAL INPUT REGISTER
DGND
OUT
AGND
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
________________________________________________________________ Maxim Integrated Products 1
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.
1 page  
Low-Cost, +5V, Serial-Input,
Voltage-Output, 14-Bit DAC
Typical Operating Characteristics (continued)
(VDD = +5V, VREF = +2.5V, TA = +25°C, unless otherwise noted.)
FULL-SCALE STEP RESPONSE
(fSCLK = 10MHz)
FULL-SCALE STEP RESPONSE
(fSCLK = 20MHz)
OUT
500mV/div
OUT
500mV/div
CL = 13pF
RL = ∞
1µs/div
MAJOR-CARRY OUTPUT GLITCH
CS
5V/div
CL = 13pF
RL = ∞
400ns/div
DIGITAL FEEDTHROUGH
SCLK
5V/div
OUT
AC-COUPLED
100mV/div
OUT
AC-COUPLED
50mV/div
2µs/div
CODE = 0000 hex
2µs/div
______________________________________________________________Pin Description
PIN NAME
FUNCTION
1
OUT
DAC Output Voltage
2
AGND
Analog Ground
3 REF Voltage Reference Input. Connect to external +2.5V reference.
4 CS Chip-Select Input
5
SCLK
Serial-Clock Input. Duty cycle must be between 40% and 60%.
6 DIN Serial-Data Input
7
DGND
Digital Ground
8 VDD +5V Supply Voltage
_______________________________________________________________________________________ 5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet MAX5544.PDF ] | |
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| MAX5541ESA | Low-Cost / +5V / Serial-Input / Voltage-Output / 16-Bit DAC | Maxim Integrated |
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