Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsData collecting ICsData acquisition IC - DA converter (DAC) uMAX 8

__________________General Description

The MAX5354/MAX5355 combine a low-power, voltage-

output, 10-bit digital-to-analog converter (DAC) and a

precision output amplifier in an 8-pin µMAX or DIP pack-

age. The MAX5354 operates from a single +5V supply,

and the MAX5355 operates from a single +3.3V supply.

Both devices draw less than 280µA of supply current.

The output amplifier’s inverting input is available to the

user, allowing specific gain configurations, remote

sensing, and high output current capability. This makes

the MAX5354/MAX5355 ideal for a wide range of appli-

cations, including industrial process control. Other fea-

tures include a software shutdown and power-on reset.

The serial interface is compatible with SPI™/QSPI™

and Microwire™. The DAC has a double-buffered input,

organized as an input register followed by a DAC regis-

ter. A 16-bit serial word loads data into the input regis-

ter. The DAC register can be updated independently or

simultaneously with the input register. All logic inputs

are TTL/CMOS-logic compatible and buffered with

Schmitt triggers to allow direct interfacing to opto-

couplers.

________________________Applications

Digital Offset and Gain Adjustment

Industrial Process Controls

Microprocessor-Controlled Systems

Portable Test Instruments

Remote Industrial Controls

______________________________Features

♦ 10-Bit DAC with Configurable Output Amplifier

♦ +5V Single-Supply Operation (MAX5354)

+3.3V Single-Supply Operation (MAX5355)

♦ Low Supply Current: 0.28mA Normal Operation

2µA Shutdown Mode

♦ Available in 8-Pin µMAX

♦ Power-On Reset Clears DAC Output to Zero

♦ SPI/QSPI and Microwire Compatible

♦ Schmitt-Trigger Digital Inputs for Direct

Optocoupler Interface

♦ +3.3V MAX5355 Directly Interfaces with +5V Logic

MAX5354/MAX5355

10-Bit Voltage-Output DACs

in 8-Pin µMAX

________________________________________________________________

Maxim Integrated Products

MAX5354

MAX5355

OUT

DIN

SCLK

DAC

REF

DAC

INPUT

CONTROL

GND

16-BIT

SHIFT

____________________Functional Diagram

REF

DIN

SCLK

GND

OUT

MAX5354

MAX5355

DIP/µMAX

TOP VIEW

_______________________Pin Configuration

19-1167; Rev 1; 2/97

PART*

MAX5354CPA

MAX5354CUA 0°C to +70°C

0°C to +70°C

TEMP. RANGE PIN-PACKAGE

8 Plastic DIP

8 µMAX

_________________Ordering Information

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800

SPI and QSPI are trademarks of Motorola, Inc. Microwire is a trademark of National Semiconductor Corp.

MAX5354EPA

MAX5354EUA -40°C to +85°C

-40°C to +85°C 8 Plastic DIP

8 µMAX

MAX5354MJA -55°C to +125°C 8 CERDIP**

Ordering Information continued at end of data sheet.

Contact factory for availability of 8-pin SO package.

Contact factory for availability and processing to MIL-STD-883.

Summary of content (16 pages)

PAGE 1
9-1167; Rev 1; 2/97 10-Bit Voltage-Output DACs in 8-Pin µMAX ______________________________Features ♦ 10-Bit DAC with Configurable Output Amplifier The output amplifier’s inverting input is available to the user, allowing specific gain configurations, remote sensing, and high output current capability. This makes the MAX5354/MAX5355 ideal for a wide range of applications, including industrial process control. Other features include a software shutdown and power-on reset.
PAGE 2
MAX5354/MAX5355 10-Bit Voltage-Output DACs in 8-Pin µMAX ABSOLUTE MAXIMUM RATINGS VDD to GND ..............................................................-0.3V to +6V REF, OUT, FB to GND ................................-0.3V to (VDD + 0.3V) Digital Inputs to GND ...............................................-0.3V to +6V Continuous Current into Any Pin.......................................±20mA Continuous Power Dissipation (TA = +70°C) Plastic DIP (derate 9.09mW/°C above +70°C) .................
PAGE 3
10-Bit Voltage-Output DACs in 8-Pin µMAX (VDD = +5V ±10%, GND = 0V, REF = 2.5V, RL = 5kΩ, CL = 100pF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C. Output buffer connected in unity-gain configuration (Figure 8).) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DIGITAL INPUTS DYNAMIC PERFORMANCE Voltage Output Slew Rate SR Output Settling Time To ±1/2LSB, VSTEP = 2.5V Output Voltage Swing Rail-to-rail (Note 2) 0.6 V/µs 10 µs 0 to VDD V Current into FB 0.
PAGE 4
MAX5354/MAX5355 10-Bit Voltage-Output DACs in 8-Pin µMAX ELECTRICAL CHARACTERISTICS: MAX5355 (VDD = +3.15V to +3.6V, REF = 1.25V, GND = 0V, RL = 5kΩ, CL = 100pF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C. Output buffer connected in unity-gain configuration (Figure 8).
PAGE 5
10-Bit Voltage-Output DACs in 8-Pin µMAX (VDD = +3.15V to +3.6V, REF = 1.25V, GND = 0V, RL = 5kΩ, CL = 100pF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C. Output buffer connected in unity-gain configuration (Figure 8).
PAGE 6
__________________________________________Typical Operating Characteristics (MAX5354 only, VDD = +5V, RL = 5kΩ, CL = 100pF, TA = +25°C, unless otherwise noted.) MAX5354 REFERENCE VOLTAGE INPUT FREQUENCY RESPONSE -0.025 360 SUPPLY CURRENT (µA) RELATIVE OUTPUT (dB) 0 RL = ∞ 380 -4 0.025 INL (LSB) 400 MAX5354-02 0 MAX5354-01 0.050 SUPPLY CURRENT vs. TEMPERATURE MAX5354-03 INTEGRAL NONLINEARITY vs. REFERENCE VOLTAGE -8 -12 -16 340 320 300 280 260 240 220 -20 1.2 2.0 2.8 3.6 0 4.
PAGE 7
10-Bit Voltage-Output DACs in 8-Pin µMAX (MAX5354 only, VDD = +5V, RL = 5kΩ, CL = 100pF, TA = +25°C, unless otherwise noted.
PAGE 8
____________________________Typical Operating Characteristics (continued) (MAX5355 only, VDD = +3.3V, RL = 5kΩ, CL = 100pF, TA = +25°C, unless otherwise noted.) MAX5355 -0.025 SUPPLY CURRENT (µA) RELATIVE OUTPUT (dB) 0 -8 -12 MAX5355-12 RL = ∞ 340 -4 0.025 INL (LSB) 360 MAX5355-11 0 MAX5355-10 0.050 SUPPLY CURRENT vs. TEMPERATURE REFERENCE VOLTAGE INPUT FREQUENCY RESPONSE INTEGRAL NONLINEARITY vs. REFERENCE VOLTAGE -16 320 300 280 260 240 220 0.8 1.2 1.6 2.0 REFERENCE VOLTAGE (V) 2.
PAGE 9
10-Bit Voltage-Output DACs in 8-Pin µMAX FB PIN NAME FUNCTION 1 OUT 2 CS Chip-Select Input. Active low. 3 DIN Serial-Data Input 4 SCLK Serial-Clock Input 5 FB 6 REF Reference Voltage Input 7 GND Ground 8 VDD Positive Power Supply R DAC Output Voltage DAC Output Amplifier Feedback 2R 2R R 2R OUT R 2R 2R MSB REF AGND SHOWN FOR ALL 1s ON DAC Figure 1.
PAGE 10
MAX5354/MAX5355 10-Bit Voltage-Output DACs in 8-Pin µMAX In shutdown mode, the amplifier’s output and the reference input enter a high-impedance state. The serial interface remains active. Data in the input register is retained in shutdown, allowing the MAX5354/MAX5355 to recall the output state prior to entering shutdown. Exit shutdown mode by either recalling the previous configuration or updating the DAC with new data.
PAGE 11
10-Bit Voltage-Output DACs in 8-Pin µMAX MAX5354/MAX5355 Table 1. Serial-Interface Programming Commands 16-BIT16-BIT SERIAL SERIAL WORDWORD C2 C1 FUNCTION C0 D9.......................D0 MSB LSB S2...S0 X 0 0 10 bits of data 000 Load input register; DAC register immediately updated (also exit shutdown). X 0 1 10 bits of data 000 Load input register; DAC register unchanged. X 1 0 XXXXXXXXXX XXX Update DAC register from input register (also exit shutdown; recall previous state).
PAGE 12
MAX5354/MAX5355 10-Bit Voltage-Output DACs in 8-Pin µMAX DIN SCLK CS1 CS2 TO OTHER SERIAL DEVICES CS3 CS CS MAX5354 MAX5355 CS MAX5354 MAX5355 MAX5354 MAX5355 SCLK SCLK SCLK DIN DIN DIN Figure 7. Multiple MAX5354/MAX5355s Sharing Common DIN and SCLK Lines Figure 7 shows a method of connecting several MAX5354/MAX5355s. In this configuration, the clock and the data bus are common to all devices, and separate chip-select lines are used for each IC. __________Applications Information Table 2.
PAGE 13
10-Bit Voltage-Output DACs in 8-Pin µMAX MSB DAC CONTENTS LSB ANALOG OUTPUT 11 1111 1111 (000)  511  +VREF    512  10 0000 0001 (000)  1  +VREF    512  10 0000 0000 (000) 01 1111 1111 (000)  1  -VREF    512  00 0000 0001 (000)  511  -VREF    512  00 0000 0000 (000) The MAX5354’s total harmonic distortion plus noise (THD+N) is typically less than -77dB (full-scale code), and the MAX5355’s THD+N is typically less than -72dB (full-scale code), given a 1Vp-p signal sw
PAGE 14
MAX5354/MAX5355 10-Bit Voltage-Output DACs in 8-Pin µMAX R1 +5V/ +3.3V R2 REF AC REFERENCE INPUT +5V/+3.3V VDD V+ +5V/+3.3V 26k MAX495 500mVp-p FB 10k VDD REF VOUT DAC OUT V- MAX5354 MAX5355 GND DAC OUT R1 = R2 = 10kΩ ± 0.1% MAX5354 MAX5355 GND Figure 10. Bipolar Output Circuit Figure 11. AC Reference Input Circuit Grounding and Layout Considerations +5V/+3.
PAGE 15
10-Bit Voltage-Output DACs in 8-Pin µMAX ___________________Chip Information PART* MAX5355CPA MAX5355CUA MAX5355EPA MAX5355EUA MAX5355MJA TRANSISTOR COUNT: 1677 TEMP. RANGE 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -55°C to +125°C PIN-PACKAGE 8 Plastic DIP 8 µMAX 8 Plastic DIP 8 µMAX 8 CERDIP** MAX5354/MAX5355 _Ordering Information (continued) *Contact factory for availability of 8-pin SO package. **Contact factory for availability and processing to MIL-STD-883. PDIPN.EPS CDIPS.
PAGE 16
___________________________________________Package Information (continued) 8LUMAXD.EPS MAX5354/MAX5355 10-Bit Voltage-Output DACs in 8-Pin µMAX 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.