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Part Number: MAX545
Description: The MAX544/MAX545 are serial-input, voltage-output, 14-bit digital-to-analog converters (DACs) that op...
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MAX545
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DataSheet
General Description
MAX545 General Description
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 performance (±0.5LSB INL and ±0.9LSB DNL) over temperature 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 VREF. For bipolar operation, matched scaling resistors are provided in the MAX545 for use with an external precision op amp (such as the MAX400), generating a ±VREF output swing. The MAX545 also includes Kelvin-sense connections 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 isolation. 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.
MAX545 Maximum Ratings
VDD to DGND ...............................................................-0.3V to +6V
CS, SCLK, DIN, LDAC to DGND .....................................-0.3V to +6V
REF, REFF, REFS to AGND ...............................-0.3V to (VDD + 0.3V)
AGND, AGNDF, AGNDS to DGND ................................-0.3V to +0.3V
OUT, INV to AGND DGND ..............................................-0.3V to VDD
RFB to AGND DGND.........................................................-6V to +6V
Maximum Current into Any Pin................................................50mA
Continuous Power Dissipation (TA = +70)
8-Pin Plastic DIP (derate 9.09mW/ above +70) .........727mW
8-Pin SO (derate 5.88mW/ above +70) .....................471mW
14-Pin Plastic DIP (derate 10.00mW/ above +70) .....800mW
14-Pin SO (derate 8.33mW/ above +70) ...................667mW
14-Pin Ceramic SB (derate 10.00mW/ above +70......800mW
Operating Temperature Ranges
MAX544 _C_ A/MAX545_C_D ....................................0 to +70
MAX544 _E_ A/MAX545_E_D..................................-40 to +85
MAX545BMJD .......................................................-55 to +125
Storage Temperature Range ..................................-65 to +150
Lead Temperature (soldering, 10s) ......................................+300
MAX545 Features
* Full 14-Bit Performance Without Adjustments
* +5V Single-Supply Operation
* Low Power: 1.5mW
* 1µs Settling Time
* Unbuffered Voltage Output Directly Drives 60kΩ
Loads
* SPI/QSPI/MICROWIRE-Compatible Serial Interface
* Power-On Reset Circuit Clears DAC Output to 0V
(unipolar mode)
* Schmitt-Trigger Inputs for Direct Optocoupler
Interface
* Pin-Compatible 16-Bit Upgrades
(MAX541/MAX542)
* +5V Single-Supply Operation
* Low Power: 1.5mW
* 1µs Settling Time
* Unbuffered Voltage Output Directly Drives 60kΩ
Loads
* SPI/QSPI/MICROWIRE-Compatible Serial Interface
* Power-On Reset Circuit Clears DAC Output to 0V
(unipolar mode)
* Schmitt-Trigger Inputs for Direct Optocoupler
Interface
* Pin-Compatible 16-Bit Upgrades
(MAX541/MAX542)
MAX545 Typical Application
Digital Offset and Gain Adjustment
Instrumentation
Industrial Process Control
Automated Test Equipment
Data-Acquisition Systems
Instrumentation
Industrial Process Control
Automated Test Equipment
Data-Acquisition Systems
MAX545 Connection Diagram
MAX545
PDF/DataSheet Download
- Datasheet: MAX545
- File Size: 271380 KB
- Manufacturer: MAXIM [Maxim Integrated Products]
- Click here to Download
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MAX545 Relative Products
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