Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsData collecting ICsData acquisition IC - DA converter (DAC) QSOP 16

_______________General Description

The MAX5150/MAX5151 low-power, serial, voltage-out-

put, dual 13-bit digital-to-analog converters (DACs)

consume only 500µA from a single +5V (MAX5150) or

+3V (MAX5151) supply. These devices feature Rail-to-

Rail

output swing and are available in a space-saving

16-pin QSOP package. To maximize the dynamic

range, the DAC output amplifiers are configured with an

internal gain of +2.

The 3-wire serial interface is SPI™/QSPI™ and

Microwire™ compatible. Each DAC has a double-

buffered input organized as an input register followed

by a DAC register, which allows the input and DAC reg-

isters to be updated independently or simultaneously

with a 16-bit serial word. Additional features include

programmable shutdown (2µA), hardware-shutdown

lockout, a separate reference voltage input for each

DAC that accepts AC and DC signals, and an active-

low clear input (CL) that resets all registers and DACs

to zero. These devices provide a programmable logic

pin for added functionality, and a serial-data output pin

for daisy-chaining.

________________________Applications

Industrial Process Control Remote Industrial Controls

Digital Offset and Gain Microprocessor-

Adjustment Controlled Systems

Motion Control Automatic Test

Equipment (ATE)

____________________________Features

♦ 13-Bit Dual DAC with Internal Gain of +2

♦ Rail-to-Rail Output Swing

♦ 16µs Settling Time

♦ Single-Supply Operation: +5V (MAX5150)

+3V (MAX5151)

♦ Low Quiescent Current: 500µA (normal operation)

2µA (shutdown mode)

♦ SPI/QSPI and Microwire Compatible

♦ Available in Space-Saving 16-Pin QSOP Package

♦ Power-On Reset Clears Registers and DACs

to Zero

♦ Adjustable Output Offset

MAX5150/MAX5151

Low-Power, Dual, 13-Bit Voltage-Output DACs

with Serial Interface

________________________________________________________________

Maxim Integrated Products

19-1255; Rev 0; 8/97

______________Ordering Information

Rail-to-Rail is a registered trademark of Nippon Motorola Ltd.

SPI and QSPI are trademarks of Motorola, Inc.

Microwire is a trademark of National Semiconductor Corp.

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

For small orders, phone 408-737-7600 ext. 3468.

REFA

AGND

DGNDPDLCL

DOUT

16-BIT

SHIFT

SERIAL

CONTROL

INPUT

REG A

SCLK

UPO

REFB

DINCS

DAC A

DAC B

OUTB

FBB

OUTA

FBA

DAC

REG A

INPUT

REG B

LOGIC

OUTPUT

DECODE

CONTROL

DAC

REG B

MAX5150

MAX5151

_________________________________________________________Functional Diagram

Ordering Information continued at end of data sheet.

Dice are tested at T

= +25°C, DC parameters only.

INL

(LSB)

PIN-PACKAGETEMP. RANGEPART

±1

±1/2

±1

±1/2

16 QSOP

16 Plastic DIP

16 Plastic DIP0°C to +70°C

0°C to +70°C

0°C to +70°CMAX5150BCEE

MAX5150ACEE

MAX5150BCPE

MAX5150ACPE

Pin Configuration appears at end of data sheet.

±1Dice*0°C to +70°CMAX5150BC/D

Summary of content (16 pages)

PAGE 1
9-1255; Rev 0; 8/97 Low-Power, Dual, 13-Bit Voltage-Output DACs with Serial Interface ________________________Applications Industrial Process Control Digital Offset and Gain Adjustment Motion Control Remote Industrial Controls MicroprocessorControlled Systems Automatic Test Equipment (ATE) ____________________________Features ♦ ♦ ♦ ♦ 13-Bit Dual DAC with Internal Gain of +2 Rail-to-Rail Output Swing 16µs Settling Time Single-Supply Operation: +5V (MAX5150) +3V (MAX5151) Low Quiescent Current: 500µA (n
PAGE 2
MAX5150/MAX5151 Low-Power, Dual, 13-Bit Voltage-Output DACs with Serial Interface ABSOLUTE MAXIMUM RATINGS VDD to AGND............................................................-0.3V to +6V VDD to DGND ...........................................................-0.3V to +6V AGND to DGND ..................................................................±0.3V OSA, OSB to AGND........................(AGND - 4V) to (VDD + 0.3V) REF_, OUT_ to AGND.................................-0.3V to (VDD + 0.
PAGE 3
Low-Power, Dual, 13-Bit Voltage-Output DACs with Serial Interface (VDD = +5V ±10%, VREFA = VREFB = 2.048V, RL = 10kΩ, CL = 100pF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA= +25°C (OS_ tied to AGND for a gain of +2).) PARAMETER SYMBOL CONDITIONS MIN TYP MAX 0.13 0.4 UNITS DIGITAL OUTPUTS Output High Voltage VOH ISOURCE = 2mA Output Low Voltage VOL ISINK = 2mA VDD - 0.
PAGE 4
MAX5150/MAX5151 Low-Power, Dual, 13-Bit Voltage-Output DACs with Serial Interface ELECTRICAL CHARACTERISTICS—MAX5151 (VDD = +2.7V to +3.6V, VREFA = VREFB = 1.25V, RL = 10kΩ, CL = 100pF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C (OS_ pins tied to AGND for a gain of +2).
PAGE 5
Low-Power, Dual, 13-Bit Voltage-Output DACs with Serial Interface (VDD = +2.7V to +3.6V, VREFA = VREFB = 1.25V, RL = 10kΩ, CL = 100pF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C (OS_ pins tied to AGND for a gain of +2).) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS POWER SUPPLIES Positive Supply Voltage VDD Power-Supply Current IDD Power-Supply Current in Shutdown 2.7 (Note 6) IDD (SHDN) (Note 6) Reference Current in Shutdown 3.6 V 0.45 0.
PAGE 6
__________________________________________Typical Operating Characteristics (VDD = +5V, RL = 10kΩ, CL = 100pF, OS_ pins tied to AGND, unless otherwise noted.) MAX5150 -10 -12 -14 -16 -20 370 740 1110 1480 CODE = 0000 (HEX) 1850 -50 -60 -70 VREF = 2.048V RL = ∞ -55 -35 -15 5 25 45 65 -80 1 85 105 125 10 100 FREQUENCY (kHz) TEMPERATURE (°C) FREQUENCY (kHz) FULL-SCALE ERROR vs. LOAD REFERENCE FEEDTHROUGH AT 1kHz SHUTDOWN CURRENT vs. TEMPERATURE -0.5 -1.0 -1.5 -2.
PAGE 7
Low-Power, Dual, 13-Bit Voltage-Output DACs with Serial Interface (VDD = +3V, RL = 10kΩ, CL = 100pF, OS_pins tied to AGND, unless otherwise noted.) MAX5151 -8 -10 -12 -14 CODE = 1FFF (HEX) 520 -30 MAX5150/5151 toc04 -6 540 VREF = 1V RL = ∞ VREF = 1Vp-p @ 1VDC CODE = 1FFF (HEX) -40 THD + NOISE (dB) -4 560 SUPPLY CURRENT (µA) MAX5150/5151 toc15 0 -2 500 480 460 440 -70 VREF = 0.67Vp-p @ 0.
PAGE 8
_____________________________Typical Operating Characteristics (continued) (VDD = +5V (MAX5150), VDD = +3V (MAX5151), RL = 10kΩ, CL = 100pF, OS_ pins tied to AGND, unless otherwise noted.) MAX5150/MAX5151 MAX5150 MAJOR-CARRY TRANSITION MAX5150/5151 TOC02 0.65 RL = ∞ CODE = 1FFF HEX 0.60 MAX5150/5151 toc19 SUPPLY CURRENT vs. SUPPLY VOLTAGE SUPPLY CURRENT (mA) CS 2V/div 0.55 MAX5150 MAX5151 0.50 OUT_ 50mV/div AC COUPLED 0.45 CODE = 0000 HEX 0.40 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.
PAGE 9
Low-Power, Dual, 13-Bit Voltage-Output DACs with Serial Interface R FUNCTION MAX5150/MAX5151 _____________________Pin Description OS_ PIN NAME 1 AGND Analog Ground 2 OUTA DAC A Output Voltage 3 OSA DAC A Offset Adjustment 4 REFA Reference for DAC A 5 CL Clears all DACs and registers (resets to 0). 6 CS Chip-Select Input 7 DIN Serial-Data Input 8 SCLK Serial-Register Clock Input 9 DGND Digital Ground Figure 1.
PAGE 10
MAX5150/MAX5151 Low-Power, Dual, 13-Bit Voltage-Output DACs with Serial Interface Table 1. Serial-Interface Programming Commands 16-BIT SERIAL WORD FUNCTION A0 C1 C0 D12.......................D0 (MSB) (LSB) MSB LSB 0 0 1 13-bit DAC data Load input register A; DAC registers are unchanged. 1 0 1 13-bit DAC data Load input register B; DAC registers are unchanged. 0 1 0 13-bit DAC data Load input register A; all DAC registers are updated.
PAGE 11
Low-Power, Dual, 13-Bit Voltage-Output DACs with Serial Interface SS DIN MAX5150 MAX5151 MOSI SCLK SCK CS SPI/QSPI PORT I/O • registers to be updated • clock edge on which data is to be clocked out via the serial-data output (DOUT) • state of the user-programmable logic output • configuration of the device after shutdown. CPOL = 0, CPHA = 0 Figure 3. Connections for SPI/QSPI The general timing diagram of Figure 5 illustrates how data is acquired.
PAGE 12
MAX5150/MAX5151 Low-Power, Dual, 13-Bit Voltage-Output DACs with Serial Interface tCSW CS tCSO tCSS tCL tCP tCH tCSH tCS1 SCLK tDS tDH DIN Figure 6. Detailed Serial-Interface Timing Diagram SCLK SCLK MAX5150 MAX5151 DIN SCLK MAX5150 MAX5151 DOUT CS DIN MAX5150 MAX5151 DOUT CS DOUT DIN CS TO OTHER SERIAL DEVICES Figure 7.
PAGE 13
Low-Power, Dual, 13-Bit Voltage-Output DACs with Serial Interface ANALOG OUTPUT 11111 1111 1111  8191  +VREF   x 2  8192  10000 0000 0001  4097  +VREF   x 2  8192  10000 0000 0000  4096  +VREF   x 2 = VREF  8192  1111  4095  +VREF   x 2  8192   1  +VREF   x 2  8192  1111 00000 0000 0001 00000 0000 0000 OS_ +5V/+3V REF_ DAC CONTENTS MSB LSB 01111 MAX5150/MAX5151 Table 2.
PAGE 14
MAX5150/MAX5151 Low-Power, Dual, 13-Bit Voltage-Output DACs with Serial Interface Table 3.
PAGE 15
Low-Power, Dual, 13-Bit Voltage-Output DACs with Serial Interface MAX5150/MAX5151 VDD OSA VIN REFA R OUTA CS SCLK DIN VREF R MAX5150 MAX5151 SHIFT REGISTER INPUT REG A DAC REG A DACA INPUT REG B DAC REG B DACB R1 R2 OUTB REFB VOUT R3 R4 R R = AGND DGND [ ] [ ] 2NA R2 )( R1+R2 )(1+ R4R3 )] [(V [(V 8192 VOUT = GAIN – OFFSET OSB IN REF 2NB 8192 )( R4R3 )] NA IS THE NUMERIC VALUE OF THE INPUT CODE FOR DACA. NB IS THE NUMERIC VALUE OF THE INPUT CODE FOR DACB. Figure 14.
PAGE 16
__________________Pin Configuration TOP VIEW AGND 1 16 VDD OUTA 2 15 OUTB 14 OSB OSA 3 REFA 4 CL 5 MAX5150 MAX5151 13 REFB 12 PDL CS 6 11 UPO DIN 7 10 DOUT 9 SCLK 8 DGND DIP/QSOP ___________________Chip Information TRANSISTOR COUNT: 3053 _Ordering Information (continued) PART TEMP.