MAX5512 MAXIM [Maxim Integrated Products], MAX5512 Datasheet

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MAX5512

Manufacturer Part Number
MAX5512
Description
Dual, Ultra-Low-Power, 8-Bit, Voltage-Output DACs
Manufacturer
MAXIM [Maxim Integrated Products]
Datasheet
The MAX5512–MAX5515 are dual, 8-bit, ultra-low-
power, voltage-output, digital-to-analog converters
(DACs) offering Rail-to-Rail
The DACs operate from a 1.8V to 5.5V supply and con-
sume less than 5µA, making the devices suitable for
low-power and low-voltage applications. A shutdown
mode reduces overall current, including the reference
input current, to just 0.18µA. The MAX5512–MAX5515
use a 3-wire serial interface that is compatible with
SPI™, QSPI™, and MICROWIRE™.
Upon power-up, the MAX5512–MAX5515 outputs are
driven to zero scale, providing additional safety for
applications that drive valves or for other transducers
that need to be off during power-up. The zero-scale
outputs enable glitch-free power-up.
The MAX5512 accepts an external reference input and
provides unity-gain outputs. The MAX5513 contains a
precision internal reference and provides a buffered
external reference output with unity-gain DAC outputs.
The MAX5514 accepts an external reference input and
provides force-sense outputs. The MAX5515 contains a
precision internal reference and provides a buffered
external reference output with force-sense DAC outputs.
The MAX5514/MAX5515 are available in a 4mm x 4mm
x 0.8mm, 12-pin, thin QFN package. The MAX5512/
MAX5513 are available in an 8-pin µMAX package. All
devices are guaranteed over the extended -40°C to
+85°C temperature range.
For 10-bit compatible devices, refer to the MAX5522–
MAX5525 data sheet. For 12-bit compatible devices,
refer to the MAX5532–MAX5535 data sheet.
19-3066; Rev 0; 1/04
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.
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.
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 LCD Bias
________________________________________________________________ Maxim Integrated Products
General Description
®
buffered voltage outputs.
Applications
8-Bit, Voltage-Output DACs
Dual, Ultra-Low-Power,
* EP = Exposed paddle (internally connected to GND).
MAX5512EUA
MAX5513EUA
MAX5514ETC
MAX5515ETC
Pin Configurations continued at end of data sheet.
MAX5512EUA
MAX5513EUA
MAX5514ETC
MAX5515ETC
Ultra-Low 5µA Supply Current
Shutdown Mode Reduces Supply Current to
0.18µA (max)
Single +1.8V to +5.5V Supply
Small 4mm x 4mm x 0.8mm Thin QFN Package
Internal Reference Sources 8mA of Current
(MAX5513/MAX5515)
Flexible Force-Sense-Configured Rail-to-Rail
Output Buffers
Fast 16MHz, 3-Wire, SPI-/QSPI-/MICROWIRE-
Compatible Serial Interface
TTL- and CMOS-Compatible Digital Inputs with
Hysteresis
Glitch-Free Outputs During Power-Up
TOP VIEW
PART
PART
REFOUT(MAX5513)
REFIN(MAX5512)
SCLK
Force sense
Force sense
OUTPUTS
Unity gain
Unity gain
DIN
CS
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
1
2
3
4
Ordering Information
MAX5512
MAX5513
Pin Configurations
µMAX
REFERENCE
Selector Guide
External
External
Internal
Internal
8
7
6
5
PIN-PACKAGE
8 µMAX
8 µMAX
12 Thin QFN-EP*
12 Thin QFN-EP*
OUTA
GND
V
OUTB
DD
Features
TOP MARK
AACJ
AACI
1

Related parts for MAX5512

MAX5512 Summary of contents

Page 1

... The zero-scale outputs enable glitch-free power-up. The MAX5512 accepts an external reference input and provides unity-gain outputs. The MAX5513 contains a precision internal reference and provides a buffered external reference output with unity-gain DAC outputs. ...

Page 2

... Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (V = +1.8V to +5.5V, OUT_ unloaded PARAMETER SYMBOL STATIC ACCURACY (MAX5512/MAX5514 EXTERNAL REFERENCE) Resolution Integral Nonlinearity (Note 1) Differential Nonlinearity (Note 1) DNL Offset Error (Note 2) V Offset-Error Temperature Drift ...

Page 3

... ELECTRICAL CHARACTERISTICS (continued +1.8V to +5.5V, OUT_ unloaded PARAMETER SYMBOL REFERENCE INPUT (MAX5512/MAX5514) Reference-Input Voltage Range Reference-Input Impedance REFERENCE OUTPUT (MAX5513/MAX5515) Initial Accuracy V Output-Voltage Temperature V Coefficient (Note 4) Line Regulation Load Regulation Output Noise Voltage Short-Circuit Current (Note aci ti ve Load S tab Rang e ...

Page 4

... IN IN Positive and negative (Note 10) 0.1 to 0.9 of full scale to within 0.5 LSB (Note 10 0.1Hz to 10Hz 10Hz to 10kHz MAX5513/MAX5515 MAX5512/MAX5514 MAX5513/MAX5515 V DD (Note (Note 9) = +25°C.) A MIN TYP MAX = 1.8V 3.8 = 1. ...

Page 5

... CS1 SYMBOL CONDITIONS f SCLK CSW t CSH t CSS t CSO t CS1 or GND indefinitely, provided that package power dissipation is not exceeded. = 5V, V REF = 4.096V (MAX5512/MAX5514 +25°C.) A MIN TYP MAX UNITS 0 16.7 MHz 100 ...

Page 6

... Dual, Ultra-Low-Power, 8-Bit, Voltage-Output DACs (V = 5.0V 4.096V (MAX5512/MAX5514 REF SUPPLY CURRENT vs. SUPPLY VOLTAGE (MAX5512/MAX5514) 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 SUPPLY VOLTAGE (V) SUPPLY CURRENT vs. TEMPERATURE (MAX5513/MAX5515 -40 - TEMPERATURE (°C) STANDBY SUPPLY CURRENT vs. TEMPERATURE (MAX5513/MAX5515) 5.0 4.5 4 3.9V REF 3 2.4V REF 3.0 2 1.9V 2.0 REF V = 1.219V REF 1 ...

Page 7

... V = 4.096V (MAX5512/MAX5514 REF INL vs. INPUT CODE ( 1.8V) DD REF 0.10 0.05 0 -0.05 -0.10 -0.15 -0.20 -0.25 -0. 100 150 200 250 300 DIGITAL INPUT CODE DNL vs. INPUT CODE ( 5V) DD REF 0.04 0.03 0.02 0.01 0 -0.01 -0.02 -0. 100 150 200 250 300 DIGITAL INPUT CODE DIGITAL FEEDTHROUGH RESPONSE MAX5512 toc16 ZERO SCALE ...

Page 8

... Dual, Ultra-Low-Power, 8-Bit, Voltage-Output DACs (V = 5.0V 4.096V (MAX5512/MAX5514 REF DAC OUTPUT VOLTAGE vs. OUTPUT SOURCE CURRENT REF DD CODE = MIDSCALE 1. 0.001 0.010 0.100 1 10 100 OUTPUT SOURCE CURRENT (mA) OUTPUT LARGE-SIGNAL STEP RESPONSE ( 3.9V) DD REF ...

Page 9

... V = 4.096V (MAX5512/MAX5514 REF REFERENCE OUTPUT VOLTAGE vs. REFERENCE OUTPUT CURRENT 3. 3.91 3.90 3.89 3.88 -500 2000 4500 7000 9500 12,000 14,500 REFERENCE OUTPUT CURRENT (µA) REFERENCE LINE-TRANSIENT RESPONSE (V = 3.9V) REF 100µs/div REFERENCE LOAD TRANSIENT (V = 5V) DD 200µs/div _______________________________________________________________________________________ Dual, Ultra-Low-Power, 8-Bit, Voltage-Output DACs Typical Operating Characteristics (continued ...

Page 10

... Dual, Ultra-Low-Power, 8-Bit, Voltage-Output DACs (V = 5.0V 4.096V (MAX5512/MAX5514 REF REFERENCE LOAD TRANSIENT (V = 5V) DD 200µs/div REFERENCE PSRR vs. FREQUENCY 0.01 0 FREQUENCY (kHz) REFERENCE OUTPUT NOISE (0.1Hz TO 10Hz 5V 1s/div 10 ______________________________________________________________________________________ Typical Operating Characteristics (continued ...

Page 11

... Bypass V 9 GND Ground 10 OUTA Channel A Analog Voltage Output 12 FBA Channel A Feedback Input EP Exposed Paddle Exposed Paddle. Connect EP to GND. V REFIN DD MAX5512 INPUT DAC 8-BIT DAC REGISTER REGISTER INPUT DAC 8-BIT DAC REGISTER REGISTER GND Pin Description FUNCTION to a 1.8V to 5.5V power DD to GND with a 0.1µ ...

Page 12

Dual, Ultra-Low-Power, 8-Bit, Voltage-Output DACs POWER- DOWN CONTROL CONTROL SCLK LOGIC DIN AND SHIFT CS REGISTER POWER- DOWN CONTROL CONTROL SCLK LOGIC DIN AND SHIFT CS REGISTER 12 ______________________________________________________________________________________ Functional Diagrams (continued 2-BIT REF PROGRAMMABLE BUF REFERENCE INPUT ...

Page 13

... DAC REGISTER REGISTER GND The MAX5512–MAX5515 include a single, 16-bit, input shift register. Data loads into the shift register through the serial interface. CS must remain low until all 16 bits are clocked in. The 16 bits consist of 4 control bits (C3–C0), 8 data bits (D7–D0) (S3– ...

Page 14

Dual, Ultra-Low-Power, 8-Bit, Voltage-Output DACs Table 1. Serial Write Data Format CONTROL MSB Sub-bits must be set to zero for proper operation. SCLK DIN t CS0 CS t CSW Figure 1. Timing ...

Page 15

... Load DAC registers A and B from respective input registers; DAC outputs A and B updated; MAX5513/MAX5515 enter normal 0000 operation if in standby or shutdown; MAX5512/MAX5514 enter normal operation if in shutdown. Load input register A and DAC register A from shift register; DAC output A updated; Load DAC register B from input register B; DAC 0000 output B updated ...

Page 16

... MAX5513/MAX5515 back to normal operation. When transitioning from standby mode to normal operation, only the DAC power-up time is required before the DAC outputs are valid. The MAX5512/MAX5514 accept a reference with a volt- age range extending from represented by a digitally programmable volt- OUT ...

Page 17

... Applications Information 1-Cell and 2-Cell Circuits See Figure 3 for an illustration of how to power the MAX5512–MAX5515 with either one lithium-ion battery or two alkaline batteries. The low current consumption of the devices make the MAX5512–MAX5515 ideal for battery-powered applications. 1.8V ≤ V ALKALINE 2.2V ≤ V LITHIUM 0.1µF ...

Page 18

Dual, Ultra-Low-Power, 8-Bit, Voltage-Output DACs Voltage Biasing a Current-Output Transducer See the circuit in Figure 5 for an illustration of how to configure the MAX5514/MAX5515 to bias a current-out- put transducer. In Figure 5, the output voltage of the MAX5514/MAX5515 ...

Page 19

REFIN DAC VOUTA R2 FBA R1 1/2 MAX5514 DAC VOUTB FBB Figure 8. Separate Force-Sense Outputs Create Unity and Greater-than-Unity DAC Gains Using the Same Reference Self-Biased Two-Electrode Potentiostat Application See the circuit in Figure 10 for an illustration of ...

Page 20

Dual, Ultra-Low-Power, 8-Bit, Voltage-Output DACs REF OUTA DAC I F FBA MAX5515 SENSOR REF OUTB DAC FBB REFOUT BAND GAP Figure 11. Driven Two-Electrode Potentiostat Application 20 ______________________________________________________________________________________ Pin Configurations (continued) TOP VIEW TO ADC SCLK ...

Page 21

For the latest package outline information www.maxim-ic.com/packages.) ______________________________________________________________________________________ Dual, Ultra-Low-Power, 8-Bit, Voltage-Output DACs Package Information PACKAGE OUTLINE 12,16,20,24L QFN THIN, 4x4x0 21-0139 ...

Page 22

Dual, Ultra-Low-Power, 8-Bit, Voltage-Output DACs (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) 22 ______________________________________________________________________________________ Package Information (continued) PACKAGE OUTLINE 12,16,20,24L QFN THIN, 4x4x0.8 mm ...

Page 23

For the latest package outline information www.maxim-ic.com/packages 0.50–0.1 0.6–0.1 1 0.6–0.1 D TOP VIEW FRONT VIEW ...

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