Datasheet

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MAX5703/MAX5704/MAX5705

Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output

Voltage DACs with Internal Reference and SPI Interface

General Description

The MAX5703/MAX5704/MAX5705 single-channel, low-

power, 8-/10-/12-bit, voltage-output digital-to-analog

converters (DACs) include output buffers and an internal

reference that is selectable to be 2.048V, 2.500V, or

4.096V. The MAX5703/MAX5704/MAX5705 accept a

wide supply voltage range of 2.7V to 5.5V with extremely

low power (< 1mW) consumption to accommodate most

low-voltage applications. A precision external reference

input allows rail-to-rail operation and presents a 100kI

(typ) load to an external reference.

The MAX5703/MAX5704/MAX5705 have a 50MHz,

3-wire SPI/QSPI™/MICROWIRE®/DSP-compatible serial

interface. The DAC output is buffered and has a low

supply current of 155FA (typical at 3V) and a low offset

error of Q0.5mV (typical). On power-up, the MAX5703/

MAX5704/MAX5705 reset the DAC outputs to zero,

providing additional safety for applications that drive

valves or other transducers which need to be off on

power-up. The internal reference is initially powered

down to allow use of an external reference.

The MAX5703/MAX5704/MAX5705 include a user-

configurable active-low asynchronous input, AUX for

additional flexibility. This input can be programmed to

asynchronously clear (CLR) or temporarily gate (GATE) the

DAC output to a user-programmable value. A dedicated

active-low asynchronous LDAC input is also included. This

allows simultaneous output updates of multiple devices.

The MAX5703/MAX5704/MAX5705 are available in 10-pin

TDFN/µMAX

packages and are specified over the -40NC

to +125NC temperature range

Applications

Programmable Voltage and Current Sources

Gain and Offset Adjustment

Automatic Tuning and Optical Control

Power Amplifier Control and Biasing

Process Control and Servo Loops

Portable Instrumentation

Data Acquisition

Benefits and Features

S Single High-Accuracy DAC Channel

 12-Bit Accuracy Without Adjustments

 ±1 LSB INL Buffered Voltage Output

 Monotonic Over All Operating Conditions

S Three Precision Selectable Internal References

 2.048V, 2.500V, or 4.096V

S Internal Output Buffer

 Rail-to-Rail Operation with External Reference

 6.3µs Settling Time

 Output Directly Drives 2kI Loads

S Small, 10-Pin, 2mm x 3mm TDFN and 3mm x 5mm

µMAX Packages

S Wide 2.7V to 5.5V Supply Range

S Flexible 1.8V to 5.5V V

DDIO

S 50MHz, 3-Wire, SPI/QSPI/MICROWIRE/DSP-

Compatible Serial Interface

S Power-On-Reset to Zero-Scale DAC Output

S User-Configurable Asynchronous I/O Functions:

CLR, LDAC, GATE

S Three Software-Selectable Power-Down Output

Impedances: 1kI, 100kI, or High Impedance

S Low 155µA DAC Supply Current at 3V

19-6463; Rev 3; 11/14

Ordering Information appears at end of data sheet.

QSPI is a trademark of Motorola, Inc.

MICROWIRE is a registered trademark of National

Semiconductor Corp.

µMAX is a registered trademark of Maxim Integrated Products,

Inc.

Functional Diagram

For related parts and recommended products to use with this part,

refer to: www.maximintegated.com/MAX5703.related

DIN

SCLK

OUT

POR

GND

SPI

SERIAL

INTERFACE

CODE

DAC CONTROL LOGIC

DAC

LATCH

100kI 1kI

REF

INTERNAL REFERENCE/

EXTERNAL BUFFER

DDIO

AUX

LDAC

CODE

CLEAR/

RESET

LOAD GATE

CLEAR /

RESET

POWER

DOWN

BUFFER

8-/10-/

12-BIT

DAC

MAX5703

MAX5704

MAX5705

For pricing, delivery, and ordering information, please contact Maxim Direct

at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.

Summary of content (26 pages)

PAGE 1
MAX5703/MAX5704/MAX5705 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and SPI Interface General Description The MAX5703/MAX5704/MAX5705 single-channel, lowpower, 8-/10-/12-bit, voltage-output digital-to-analog converters (DACs) include output buffers and an internal reference that is selectable to be 2.048V, 2.500V, or 4.096V. The MAX5703/MAX5704/MAX5705 accept a wide supply voltage range of 2.7V to 5.
PAGE 2
MAX5703/MAX5704/MAX5705 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and SPI Interface ABSOLUTE MAXIMUM RATINGS VDD to GND..............................................................-0.3V to +6V VDDIO to GND..........................................................-0.3V to +6V OUT, REF to GND.........-0.3V to lower of (VDD + 0.3V) and +6V CS, SCLK, DIN, AUX, LDAC to GND.......................-0.
PAGE 3
MAX5703/MAX5704/MAX5705 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and SPI Interface ELECTRICAL CHARACTERISTICS (continued) (VDD = 2.7V to 5.5V, VDDIO = 1.8V to 5.5V, VGND = 0V, CL = 200pF, RL = 2kI , TA = -40NC to +125NC, unless otherwise noted.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DAC OUTPUT CHARACTERISTICS Output Voltage Range (Note 6) Load Regulation No load 0 VDD 2kI load to GND 0 VDD 0.2 2kI load to VDD 0.
PAGE 4
MAX5703/MAX5704/MAX5705 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and SPI Interface ELECTRICAL CHARACTERISTICS (continued) (VDD = 2.7V to 5.5V, VDDIO = 1.8V to 5.5V, VGND = 0V, CL = 200pF, RL = 2kI , TA = -40NC to +125NC, unless otherwise noted.) (Note 2) PARAMETER Output Voltage-Noise Density (DAC Output at Midscale) SYMBOL CONDITIONS f = 1kHz External reference f = 10kHz f = 10kHz 98 2.5V internal reference f = 1kHz 117 f = 10kHz 110 4.
PAGE 5
MAX5703/MAX5704/MAX5705 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and SPI Interface ELECTRICAL CHARACTERISTICS (continued) (VDD = 2.7V to 5.5V, VDDIO = 1.8V to 5.5V, VGND = 0V, CL = 200pF, RL = 2kI , TA = -40NC to +125NC, unless otherwise noted.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS REFERENCE INPUT Reference Input Range VREF Reference Input Current IREF Reference Input Impedance RREF 1.24 VREF = VDD = 5.
PAGE 6
MAX5703/MAX5704/MAX5705 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and SPI Interface ELECTRICAL CHARACTERISTICS (continued) (VDD = 2.7V to 5.5V, VDDIO = 1.8V to 5.5V, VGND = 0V, CL = 200pF, RL = 2kI , TA = -40NC to +125NC, unless otherwise noted.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS POWER REQUIREMENTS Supply Voltage I/O Supply Voltage VDD VREF = 4.096V 4.5 5.5 All other options 2.7 5.5 1.8 5.
PAGE 7
MAX5703/MAX5704/MAX5705 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and SPI Interface ELECTRICAL CHARACTERISTICS (continued) (VDD = 2.7V to 5.5V, VDDIO = 1.8V to 5.5V, VGND = 0V, CL = 200pF, RL = 2kI , TA = -40NC to +125NC, unless otherwise noted.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP Hysteresis Voltage VH 0.15 Input Leakage Current (Note 9) IIN ±0.
PAGE 8
MAX5703/MAX5704/MAX5705 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and SPI Interface ELECTRICAL CHARACTERISTICS (continued) (VDD = 2.7V to 5.5V, VDDIO = 1.8V to 5.5V, VGND = 0V, CL = 200pF, RL = 2kI , TA = -40NC to +125NC, unless otherwise noted.) (Note 2) Note 2: Electrical specifications are production tested at TA = +25°C. Specifications over the entire operating temperature range are guaranteed by design and characterization.
PAGE 9
MAX5703/MAX5704/MAX5705 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and SPI Interface Typical Operating Characteristics (MAX5705, 12-bit performance, TA = +25NC, unless otherwise noted.) INL vs. CODE VDD = VREF = 5V NO LOAD 0.8 0.6 0.1 0 -0.2 0 -0.1 -0.4 -0.4 -0.2 -0.6 -0.6 -0.3 -0.8 -0.8 -0.4 -1.0 -1.0 512 1024 1536 2048 2560 3072 3584 4096 -0.5 0 512 1024 1536 2048 2560 3072 3584 4096 DNL vs. CODE VDD = VREF 0.8 0.6 MAX INL 0 -0.
PAGE 10
MAX5703/MAX5704/MAX5705 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and SPI Interface Typical Operating Characteristics (continued) (MAX5705, 12-bit performance, TA = +25NC, unless otherwise noted.) 0.06 GAIN ERROR (VDD = 3V) 0.04 260 VREF = 2.048V, VDD = 3V VREF = 2.5V, VDD = 3V 180 140 0 100 SUPPLY CURRENT vs. SUPPLY VOLTAGE (2.048V INTERNAL REFERENCE) DAC ON REFERENCE PAD DRIVEN 250 220 0.
PAGE 11
MAX5703/MAX5704/MAX5705 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and SPI Interface Typical Operating Characteristics (continued) (MAX5705, 12-bit performance, TA = +25NC, unless otherwise noted.) SETTLING TO ±1 LSB (VDD = VREF = 5V, RL = 2kI, CL = 200pF) SETTLING TO ±1 LSB (VDD = VREF = 5V, RL = 2kI, CL = 200pF) MAX5703 toc18 5.
PAGE 12
MAX5703/MAX5704/MAX5705 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and SPI Interface Typical Operating Characteristics (continued) (MAX5705, 12-bit performance, TA = +25NC, unless otherwise noted.) 3 VDD = VREF MIDSCALE MAX5703 toc24 VDD = VREF = 5V DAC AT MIDSCALE 2 1 ∆VOUT (mV) VOUT 125µV/div MAX5703 toc25 OUTPUT LOAD REGULATION DIGITAL FEEDTHROUGH (VDD = VREF = 5V, RL = 2kI, CL = 200pF) VDD = 3V 0 VDD = 5V -1 DIGITAL FEEDTHROUGH = 0.
PAGE 13
MAX5703/MAX5704/MAX5705 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and SPI Interface Typical Operating Characteristics (continued) (MAX5705, 12-bit performance, TA = +25NC, unless otherwise noted.) 0.1Hz TO 10Hz OUTPUT NOISE, INTERNAL REFERENCE (VDD = 5V, VREF = 2.500V) 0.1Hz TO 10Hz OUTPUT NOISE, INTERNAL REFERENCE (VDD = 5V, VREF = 4.
PAGE 14
MAX5703/MAX5704/MAX5705 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and SPI Interface Pin Configurations TOP VIEW 1 LDAC 2 CS 3 SCLK 4 DIN 5 10 REF + AUX MAX5703 MAX5704 MAX5705 *EP AUX 1 2 + 10 REF 9 OUT 8 GND 9 OUT LDAC 8 GND CS 3 7 VDD SCLK 4 7 VDD 6 VDDIO DIN 5 6 VDDIO TDFN MAX5703 MAX5704 MAX5705 µMAX *CONNECTED TO GND Pin Description PIN NAME FUNCTION 1 AUX 2 LDAC 3 CS 4 SCLK SPI Interface Cloc
PAGE 15
MAX5703/MAX5704/MAX5705 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and SPI Interface Detailed Description The MAX5703/MAX5704/MAX5705 are single-channel, low-power, 8-/10-/12-bit voltage-output digital-to-analog converters (DACs) with an internal output buffer. The wide supply voltage range of 2.7V to 5.5V and low power consumption accommodate low-power and low-voltage applications. The devices present a 100kI (typ) load to the external reference.
PAGE 16
MAX5703/MAX5704/MAX5705 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and SPI Interface CLR Mode In CLR mode, the AUX input performs an asynchronous level sensitive CLEAR operation when pulled low. If CLR is configured and asserted, all CODE and DAC data registers are cleared to their default/return values as defined by the configuration settings. Other userconfiguration settings are not affected.
PAGE 17
MAX5703/MAX5704/MAX5705 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and SPI Interface CODE Command The CODE command (B[23:20] = 1000) updates the CODE register content for the DAC. Changes to the CODE register content based on this command will not affect the DAC output directly unless the LDAC input is in a low state. Otherwise, a subsequent hardware or software LOAD operation will be required to move this content to the active DAC latch.
PAGE 18
B23 1 1 1 1 0 CODE LOAD CODE_LOAD CODE_LOAD RETURN DAC COMMANDS COMMAND Maxim Integrated 1 0 0 0 0 B22 1 1 1 0 0 B21 1 1 0 1 0 B20 X X X X X B19 X X X X X B18 X X X X X B17 X X X X X B16 X B15 Table 2.
PAGE 19
COMMAND B23 B22 Maxim Integrated 0 0 0 0 SOFTWARE POWER CONFIG DEFAULT 1 1 1 0 0 1 0 1 0 1 0 1 0 0 1 1 B21 1 0 0 1 0 1 0 B20 X X X X X X B16 Type: 11 = 4.1V 10 = 2.0V 01 = 2.
PAGE 20
MAX5703/MAX5704/MAX5705 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and SPI Interface REF Command SOFTWARE Commands The SOFTWARE (B[23:20] = 0011) commands provide a means of issuing several flexible software actions. See Table 4. The REF (B[23:20] = 0010) command updates the global reference setting used for the DAC. Set B[17:16] = 00 to use an external reference for the DAC or set B[17:16] to 01, 10, or 11 to select either the 2.5V, 2.048V, or 4.
PAGE 21
MAX5703/MAX5704/MAX5705 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and SPI Interface POWER Command mode, the DAC register retains its value so that the output is restored when the device powers up. The serial interface remains active in power-down mode with all registers accessible. The MAX5703/MAX5704/MAX5705 feature a softwarecontrolled POWER mode command (B[23:20] = 0100).
PAGE 22
MAX5703/MAX5704/MAX5705 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and SPI Interface CONFIG Command The CONFIG command (B[23:20] = 0101) updates the function of the AUX input enabling its gate, load, or clear (default) operation mode. See Table 7. AUX Config settings are written by B[5:3]: GATE (011): AUX functions as a GATE. DAC code is gated to DEFAULT value input when pin is low. CLEAR (110): AUX functions as a CLR input (default).
PAGE 23
MAX5703/MAX5704/MAX5705 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and SPI Interface RETURN Command The RETURN command (B[23:20] = 0111) updates the RETURN register content for the DAC. If the DEFAULT configuration register is set to RETURN mode, the DAC will be cleared or gated to the RETURN register value in the event of a SW or HW CLEAR or GATE condition. It is not necessary to program this register if the DEFAULT = RETURN mode will not be used.
PAGE 24
MAX5703/MAX5704/MAX5705 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and SPI Interface Typical Operating Circuits 100nF 100nF VDDIO 4.7µF VDD OUT DAC VOUT = -VREF to +VREF CS MICRO CONTROLLER SCLK DIN LDAC MAX5703 MAX5704 MAX5705 REF R1 AUX R2 R1 = R2 GND NOTE: BIPOLAR OPERATION SHOWN 100nF 100nF VDDIO CS MICRO CONTROLLER 4.
PAGE 25
MAX5703/MAX5704/MAX5705 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and SPI Interface Ordering Information PIN-PACKAGE RESOLUTION (BIT) INTERNAL REFERENCE TEMPCO (ppm/NC) MAX5703ATB+T PART 10 TDFN-EP* 8 10 (typ), 25 (max) MAX5703AUB+ 10 FMAX 8 10 (typ), 25 (max) MAX5704ATB+T 10 TDFN-EP* 10 10 (typ), 25 (max) MAX5704AUB+ 10 FMAX 10 10 (typ), 25 (max) MAX5705AAUB+ 10 FMAX 12 4 (typ), 12 (max) MAX5705BATB+T 10 TDFN-EP* 12 10 (typ),
PAGE 26
MAX5703/MAX5704/MAX5705 Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and SPI Interface Revision History REVISION NUMBER REVISION DATE 0 11/12 Initial release 1 2/13 Released MAX5703/MAX5704. Updated the Electrical Characteristics. 2 6/13 Released the MAX5703/MAX5704/MAX5705 TDFN packages.