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Part: MAX5531
Category:
Description: Ultra-Low-Power, 12-Bit, Voltage-output DACs
Company: Maxim Integrated Products
Datasheet: Download MAX5531 datasheet File size : 292 kB
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19-3063; Rev 0; 1/04
Ultra-Low-Power, 12-Bit, Voltage-Output DACs
General Description
The MAX5530/MAX5531 are single, 12-bit, ultra-lowp o w e r , voltage-output, digital-to-analog converters (DACs) offering Rail-to-Rail® buffered voltage outputs. The DACs operate from a 1.8V to 5.5V supply and consume less than 6µA, making them desirable for lowpower and low-voltage applications. A shutdown mode reduces overall current, including the reference input current, to just 0.18µA. The MAX5530/MAX5531 use a 3-wire serial interface that is compatible with SPITM, QSPITM, and MICROWIRETM. At power-up, the MAX5530/MAX5531 outputs are driven to zero scale, providing additional safety for applications that drive valves or for other transducers that must be off during power-up. The zero-scale outputs enable glitchfree power-up. The MAX5530 accepts an external reference input. The MAX5531 contains an internal reference and provides an external reference output. Both devices have forcesense-configured output buffers. The MAX5530/MAX5531 are available in a 4mm x 4mm x 0.8mm, 12-pin, thin QFN package and are guaranteed over the extended -40°C to +85°C temperature range. For 10-bit compatible devices, refer to the MAX5520/ MAX5521 data sheet. For 8-bit compatible devices, refer to the MAX5510/MAX5511 data sheet.
Features
Ultra-Low 6µA Supply Current Shutdown Mode Reduces Supply Current to 0.18µ A (max) Single +1.8V to +5.5V Supply Small 4mm x 4mm x 0.8mm Thin QFN Package Flexible Force-Sense-Configured Rail-to-Rail Output Buffers Internal Reference Sources 8mA of Current (MAX5531) Fast 16MHz 3-Wire SPI-/QSPI-/MICROWIRECompatible Serial Interface TTL- and CMOS-Compatible Digital Inputs with Hysteresis Glitch-Free Outputs During Power-Up
MAX5530/MAX5531
Ordering Information
PART MAX5530ETC MAX5531ETC TEMP RANGE -40°C to +85°C -40°C to +85°C PIN-PACKAGE 12 Thin QFN-EP* 12 Thin QFN-EP*
*EP = Exposed paddle (internally connected to GND).
Applications
Portable Battery-Powered Devices Instrumentation Automatic Trimming and Calibration in Factory or Field Programmable Voltage and Current Sources Industrial Process Control and Remote Industrial Devices Remote Data Conversion and Monitoring Chemical Sensor Cell Bias for Gas Monitors Programmable Liquid Crystal Display (LCD) Bias
4 5 DIN 3 CS SCLK 1 2
Pin Configuration
TOP VIEW
FB 12 N.C. 11 OUT 10
9 8 7
GND VDD N.C.
MAX5530 MAX5531
6 N.C.
Selector Guide
PART MAX5530ETC MAX5531ETC REFERENCE External Internal TOP MARK AACS AACT
REFIN (MAX5530) N.C. REFOUT(MAX5531)
THIN QFN
Rail-to-Rail is a registered trademark of Nippon Motorola, Inc. SPI and QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp ________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
Ultra-Low-Power, 12-Bit, Voltage-Output DACs MAX5530/MAX5531
ABSOLUTE MAXIMUM RATINGS
VDD to GND .....-0.3V to +6V OUT to GND .....-0.3V to (VDD + 0.3V) FB to GND ........-0.3V to (VDD + 0.3V) SCLK, DIN, CS to GND ......-0.3V to (VDD + 0.3V) REFIN, REFOUT to GND ....-0.3V to (VDD + 0.3V) Continuous Power Dissipation (TA = +70°C) Thin QFN (derate 16.9mW/°C above +70°C .....1349mW Operating Temperature Range ...-40°C to +85°C Storage Temperature Range .....-65°C to +150°C Junction Temperature ..... +150°C Lead Temperature (soldering, 10s) .........+300°C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VDD = +1.8V to +5.5V, OUT unloaded, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER SYMBOL CONDITIONS MIN 12 ±4 ±4 ±0.2 ±0.2 ±1 ±1 ±2 GE VDD = 5V, VREF = 4.096V VDD = 1.8V, VREF = 1.024V ±2 ±2 ±4 PSRR N INL VDD = 5V, VREF = 3.9V VDD = 1.8V, VREF = 1.2V Guaranteed monotonic, VDD = 5V, VREF = 3.9V Guaranteed monotonic, VDD = 1.8V, VREF = 1.2V Offset Error (Note 2) Offset-Error Temperature Drift Gain Error (Note 3) Gain-Error Temperature Coefficient GE VDD = 5V, VREF = 3.9V VDD = 1.8V, VREF = 1.2V VOS VDD = 5V, VREF = 3.9V VDD = 1.8V, VREF = 1.2V 1.8V VDD 5.5V 12 ±4 ±4 ±0.2 ±0.2 ±1 ±1 ±2 ±2 ±2 ±4 ±4 ±4 ±8 ±8 ±1 LSB ±1 ±20 ±20 mV µV/°C LSB ppm/°C 85 ±4 ±4 ±8 ±8 ±1 LSB ±1 ±20 ±20 mV µV/°C LSB ppm/°C dB Bits LSB TYP MAX UNITS Bits LSB STATIC ACCURACY (MAX5530 EXTERNAL REFERENCE) Resolution N Integral Nonlinearity (Note 1) INL VDD = 5V, VREF = 4.096V VDD = 1.8V, VREF = 1.024V Guaranteed monotonic, VDD = 5V, VREF = 4.096V Guaranteed monotonic, VDD = 1.8V, VREF = 1.024V Offset Error (Note 2) Offset-Error Temperature Drift Gain Error (Note 3) Gain-Error Temperature Coefficient Power-Supply Rejection Ratio Resolution Integral Nonlinearity (Note 1) STATIC ACCURACY (MAX5531 INTERNAL REFERENCE) VOS VDD = 5V, VREF = 4.096V VDD = 1.8V, VREF = 1.024V
Differential Nonlinearity (Note 1)
DNL
Differential Nonlinearity (Note 1)
DNL
2
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Ultra-Low-Power, 12-Bit, Voltage-Output DACs
ELECTRICAL CHARACTERISTICS (continued)
(VDD = +1.8V to +5.5V, OUT unloaded, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER Power-Supply Rejection Ratio REFERENCE INPUT (MAX5530) Reference-Input Voltage Range Reference-Input Impedance REFERENCE OUTPUT (MAX5531) No external load, VDD = 1.8V Initial Accuracy V REFOUT No external load, VDD = 2.5V No external load, VDD = 3V No external load, VDD = 5V Output-Voltage Temperature Coefficient Line Regulation V TEMPCO TA = -40°C to +85°C (Note 4) VREFOUT < VDD - 200mV (Note 5) 0 IREFOUT 1mA, sourcing, VDD = 1.8V, VREF = 1.2V Load Regulation 0 IREFOUT 8mA, sourcing, VDD = 5V, VREF = 3.9V -150µA IREFOUT 0, sinking 0.1Hz to 10Hz, VREFOUT = 3.9V Output Noise Voltage 10Hz to 10kHz, VREFOUT = 3.9V 0.1Hz to 10Hz, VREFOUT = 1.2V 10Hz to 10kHz, VREFOUT = 1.2V Short-Circuit Current (Note 6) Capacitive Load Stability Range Thermal Hysteresis Reference Power-Up Time (from Shutdown) Long-Term Stability DAC OUTPUT (OUT) Capacitive Driving Capability CL VDD = 5V, VOUT set to full scale, OUT shorted to GND, source current VDD = 5V, VOUT set to 0V, OUT shorted to VDD, sink current VDD = 1.8V, VOUT set to full scale, OUT shorted to GND, source current VDD = 1.8V, VOUT set to 0V, OUT shorted to VDD, sink current 1000 65 65 mA 14 14 pF VDD = 5V VDD = 1.8V (Note 7) (Note 8) REFOUT unloaded, VDD = 5V REFOUT unloaded, VDD = 1.8V 1.197 1.913 2.391 3.828 1.214 1.940 2.425 3.885 12 2 0.3 0.3 0.2 150 600 50 450 30 14 0 to 10 200 5.4 4.4 200 mA nF ppm ms ppm/ 1khrs µVP-P 1.231 1.967 2.459 3.941 30 200 2 2 µV/µA ppm/°C µV/V V V REFIN RREFIN Normal operation In shutdown 0 4.1 2.5 VDD V M G SYMBOL PSRR CONDITIONS 1.8V VDD 5.5V MIN TYP 85 MAX UNITS dB
MAX5530/MAX5531
Short-Circuit Current (Note 6)
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