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MAX5139

更新时间： 2024-09-13 05:49:07
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美信 - MAXIM /
页数 文件大小 规格书
17页 351K
描述
Low-Power, Single, 16-/12-Bit, Buffered Voltage-Output DACs

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MAX5139 数据手册

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19-4428; Rev 1; 4/09  
Low-Power, Single, 16-/12-Bit,  
Buffered Voltage-Output DACs  
8/MAX5139  
General Description  
Features  
o 16-/12-Bit Resolution in a 3mm x 3mm, 16-Pin  
The MAX5138/MAX5139 are a family of single-channel  
pin-compatible and software-compatible 16-bit and 12-  
bit DACs. The MAX5138/MAX5139 are low-power, 16-  
bit/12-bit, buffered voltage-output, high-linearity DACs.  
They use a precision internal reference or a precision  
external reference for rail-to-rail operation. The  
MAX5138/MAX5139 accept a wide +2.7V to +5.25V sup-  
ply-voltage range to accommodate most low-power and  
low-voltage applications. These devices accept a 3-wire  
SPITM-/QSPITM-/MICROWIRETM-/DSP-compatible serial  
interface to save board space and reduce the complexi-  
ty of optically isolated and transformer-isolated applica-  
tions. The digital interface’s double-buffered hardware  
and software LDAC provide simultaneous output update.  
The serial interface features a READY output for easy  
daisy-chaining of several MAX5138/MAX5139 devices  
and/or other compatible devices. The MAX5138/MAX5139  
include a hardware input to reset the DAC outputs to  
zero or midscale upon power-up or reset, providing  
additional safety for applications that drive valves or  
other transducers that need to be off during power-up.  
The high linearity of the DACs makes these devices ideal  
for precision control and instrumentation applications.  
The MAX5138/MAX5139 are available in an ultra-small  
(3mm x 3mm), 16-pin TQFN package and are specified  
over the -40°C to +105°C extended industrial tempera-  
ture range.  
TQFN Package  
o Hardware-Selectable on Power-Up or Reset-to-  
Zero/Midscale DAC Output  
o Double-Buffered Input Registers  
o LDAC Asynchronously Updates DAC Output  
o READY Facilitates Daisy Chaining  
o High-Performance 10ppm/°C Internal Reference  
o Guaranteed Monotonic Over All Operating  
Conditions  
o Wide +2.7V to +5.25V Supply Range  
o Rail-to-Rail Buffered Output Operation  
o Low Gain Error (Less Than 0.5ꢀ FSꢁ and Offset  
(Less Than 10mVꢁ  
o 30MHz 3-Wire SPI-/QSPI-/MICROWIRE-/  
DSP-Compatible Serial Interface  
o CMOS-Compatible Inputs with Hysteresis  
o Low Power Consumption (I  
= 2µA maxꢁ  
SHDN  
Ordering Information  
RESOLUTION  
PART  
PIN-PACKAGE  
(BITSꢁ  
MAX5138BGTE+  
MAX5139GTE+  
16 TQFN-EP*  
16 TQFN-EP*  
16  
12  
+Denotes a lead(Pb)-free/RoHS-compliant package.  
*EP = Exposed pad.  
Note: All devices are specified over the -40°C to +105°C operating  
temperature range.  
Applications  
Automatic Test Equipment  
Automatic Tuning  
Pin Configuration  
Communication Systems  
Data Acquisition  
TOP VIEW  
Gain and Offset Adjustment  
Portable Instrumentation  
Power-Amplifier Control  
12  
11  
10  
9
AGND  
DIN  
13  
14  
AVDD  
REFI  
8
7
6
5
Process Control and Servo Loops  
Programmable Voltage and Current Sources  
MAX5138  
MAX5139  
CS  
REFO 15  
*EP  
4
SCLK  
16  
AGND  
+
Functional Diagram and Typical Operating Circuit appear  
at end of data sheet.  
1
2
3
SPI and QSPI are trademarks of Motorola Inc.  
MICROWIRE is a trademark of National Semiconductor Corp.  
TQFN  
3mm x 3mm  
*EXPOSED PAD  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,  
or visit Maxim’s website at www.maxim-ic.com.  
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