MAX5721EUA+ Maxim Integrated Products, MAX5721EUA+ Datasheet

IC DAC 10BIT DUAL LP SER 8-UMAX

MAX5721EUA+

Manufacturer Part Number
MAX5721EUA+
Description
IC DAC 10BIT DUAL LP SER 8-UMAX
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX5721EUA+

Settling Time
4µs
Number Of Bits
10
Data Interface
Serial
Number Of Converters
2
Voltage Supply Source
Single Supply
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Number Of Dac Outputs
2
Resolution
10 bit
Interface Type
Serial (SPI)
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2.7 V
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Maximum Power Dissipation
362 mW
Minimum Operating Temperature
- 40 C
Supply Current
135 uA
Voltage Reference
External
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power Dissipation (max)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
The MAX5721 dual 10-bit, low-power, buffered voltage-
output, digital-to-analog converter (DAC) is packaged
in a space-saving 8-pin µMAX
3mm). The wide supply voltage range of +2.7V to
+5.5V and 112µA supply current accommodate low-
power and low-voltage applications. DAC outputs
employ on-chip precision output amplifiers that swing
rail-to-rail. The MAX5721’s reference input accepts a
voltage range from 0 to V
ence input is high impedance, further reducing the sys-
tem’s total power consumption.
The 20MHz, 3-wire SPI™, QSPI™, MICROWIRE™ and
DSP-compatible serial interface saves board space
and reduces the complexity of opto- and transformer-
isolated applications. The MAX5721 on-chip power-on
reset (POR) circuit resets the DAC outputs to zero and
loads the output with a 100k
provides additional safety for applications that drive
valves or other transducers that need to be off on
power-up. The MAX5721’s software-controlled power-
down reduces supply current to less than 0.3µA and
provides software-selectable output loads (1k , 100k ,
or high impedance) while in power-down. The
MAX5721 is specified over the -40°C to +125°C auto-
motive temperature range
19-2125; Rev 3; 4/05
Functional Diagram appears at end of data sheet.
µMAX is a registered trademark of Maxim Integrated Products, 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.
Automatic Tuning
Gain and Offset Adjustment
Power Amplifier Control
Process Control I/O Boards
Battery-Powered Instruments
VCO Control
________________________________________________________________ Maxim Integrated Products
10-Bit, Low-Power, Dual, Voltage-Output
General Description
DD
. In power-down the refer-
resistor to ground. This
®
Applications
package (5mm
DAC with Serial Interface
♦ Ultra-Low Power Consumption
♦ Wide +2.7V to +5.5V Single-Supply Range
♦ Tiny 8-Pin µMAX Package
♦ 0.3µA Power-Down Current
♦ Guaranteed 10-Bit Monotonicity (±1LSB DNL)
♦ Safe Power-Up Reset to Zero Volts at DAC Output
♦ Three Software Selectable Power-Down
♦ Fast 20MHz, 3-Wire SPI, QSPI, and MICROWIRE-
♦ Rail-to-Rail Output Buffer Amplifiers
♦ Schmitt-Triggered Logic Inputs for Direct
♦ Wide -40 C to +125 C Operating Temperature
MAX5721EUA
MAX5721AUA
Impedances (100k , 1k , Hi-Z)
Compatible Serial Interface
Interface to Optocouplers
Range
PART
TOP VIEW
112µA at V
135µA at V
SCLK
GND
V
CS
DD
DD
DD
-40°C to +85°C
-40°C to +125°C
1
2
4
3
TEMP RANGE
= +3.6V
= +5.5V
Ordering Information
MAX5721
MAX
Pin Configuration
6
8
7
5
OUTB
OUTA
REF
DIN
8 µMAX
8 µMAX
PIN-PACKAGE
Features
1

Related parts for MAX5721EUA+

MAX5721EUA+ Summary of contents

Page 1

... Process Control I/O Boards Battery-Powered Instruments VCO Control Functional Diagram appears at end of data sheet. µMAX is a registered trademark of Maxim Integrated Products, Inc. SPI and QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor, Corp. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’ ...

Page 2

Low-Power, Dual, Voltage-Output DAC with Serial Interface ABSOLUTE MAXIMUM RATINGS V to GND ..............................................................-0.3V to +6V DD CS, REF to GND...............-0 OUT_, SCLK, DIN, Maximum Continuous Current Into Any Pin......................±50mA Continuous Power Dissipation (T = +70°C) A ...

Page 3

Low-Power, Dual, Voltage-Output ELECTRICAL CHARACTERISTICS (continued +2.7V to +5.5V, GND = REF V = +5V +25°C PARAMETER SYMBOL DIGITAL INPUTS (SCLK, DIN, CS) Input High Voltage Input Low Voltage Input ...

Page 4

Low-Power, Dual, Voltage-Output DAC with Serial Interface __________________________________________Typical Operating Characteristics ( +25°C, unless otherwise noted.) REF DD A INTEGRAL NONLINEARITY vs. CODE + +3V DD ...

Page 5

Low-Power, Dual, Voltage-Output ( +25°C, unless otherwise noted.) REF DD A WORST-CASE INL AND DNL vs. TEMPERATURE MAXIMUM DNL MAXIMUM INL MINIMUM DNL MINIMUM INL - ...

Page 6

Low-Power, Dual, Voltage-Output DAC with Serial Interface ( +25°C, unless otherwise noted.) REF DD A HALF-SCALE SETTLING TIME (V CODE 100 HEX TO 300 HEX 200pF L 1 ...

Page 7

Low-Power, Dual, Voltage-Output ( +25°C, unless otherwise noted.) REF DD A DIGITAL-TO-ANALOG GLITCH IMPULSE (V = +3V s/div POWER-ON RESET, SLOW RISE TIME (V = +5V s/div POWER-ON RESET, ...

Page 8

Low-Power, Dual, Voltage-Output DAC with Serial Interface ( +25°C, unless otherwise noted.) REF DD A CLOCK FEEDTHROUGH (V = +3V) DD MAX5721 toc31 100ns/div f = 1MHz SCLK LINE TRANSIENT RESPONSE (V = ...

Page 9

Low-Power, Dual, Voltage-Output Detailed Description The MAX5721 contains two 10-bit, voltage-output, low- power digital-to-analog converters (DACs). Each DAC employs a resistor string architecture that converts a 10-bit digital input word to an equivalent analog output voltage proportional to the ...

Page 10

Low-Power, Dual, Voltage-Output DAC with Serial Interface Table 1. Power-Down Mode Control EXTENDED DATA BITS CONTROL D9– ...

Page 11

Low-Power, Dual, Voltage-Output Table 2. Serial-Interface Programming Commands CONTROL DATA BITS D9–D0 S1– ...

Page 12

Low-Power, Dual, Voltage-Output DAC with Serial Interface Table 3. Unipolar Code Table DAC CONTENTS ANALOG OUTPUT 1111 1111 1100 1000 0000 0100 1000 0000 0000 0111 1111 1100 0000 0000 0100 0000 0000 0000 Chip Information TRANSISTOR COUNT: 7737 ...

Page 13

Low-Power, Dual, Voltage-Output V DD REF INPUT DAC REGISTER A REGISTER B INPUT DAC REGISTER B REGISTER B INPUT CONTROL LOGIC AND SHIFT REGISTER CS SCLK DIN ______________________________________________________________________________________ DAC with Serial Interface OUTPUT 10-BIT DAC A BUFFER OUTPUT 10-BIT ...

Page 14

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 14 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2005 Maxim Integrated Products Package Information (continued) ...

Related keywords