MAX514BEWI+ ,CMOS Quad, 12-Bit, Serial-Input Multiplying DACELECTRICAL CHARACTERISTICS
(VDD = +5V, VREF = +10V, loUT = IOUTA = GND = 0V, TA = TMIN to TMAX, ..
MAX514BEWI+ ,CMOS Quad, 12-Bit, Serial-Input Multiplying DACFeatures
. Four 12-Bit Accurate DACs
. Fast 3-Wire Serial Interface
. Low Differential Non ..
MAX5150ACEE ,Low-Power, Dual, 13-Bit Voltage-Output DACs with Serial Interfacefeatures include' Adjustable Output Offsetprogrammable shutdown (2µA), hardware-shutdownlockout, a ..
MAX5150AEEE ,Low-Power, Dual, 13-Bit Voltage-Output DACs with Serial InterfaceMAX5150/MAX515119-1255; Rev 0; 8/97Low-Power, Dual, 13-Bit Voltage-Output DACswith Serial Interface ..
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MAX514ACNG+-MAX514ACWI+-MAX514AENG+-MAX514AEWI+-MAX514BCNG+-MAX514BCWI+-MAX514BEWI+
CMOS Quad, 12-Bit, Serial-Input Multiplying DAC
19-4516; Rev f; 2/97
AMI] 2iT2aheAIA]
Gli8ilOS Quad, 'il24Biiit,
SerialMhnpuit Multiplying [DAG
General Description
The MAX514 contains four 12-bit R-2R multiplying digi-
tal-to-analog converters (DACs), each with a serial-in
parallel-out shift register, a DAC register, and control
logic. The MAX514's 3-wire serial interface design mini-
mizes the number of package pins and internal level
translators, so it uses less board space and dissipates less
power (10mW max) than parallel-interface devices.
When used with microprocessors (pPs) with a serial port,
the MAX514 minimizes digital-noise feedthrough from its
logic input pins to its analog output. To further reduce
noise, the " serial port can be used as a dedicated
analog bus and kept inactive while the MAX514 is in use.
Serial interfacing also simplifies opto-coupler or trans-
former-isolated applications.
This device uses kow-tempco thin-film resistors, lasertrimmed
to :1 LSB linearity, with gain accuracy better than i11/2LSB.
The MAX514 is specified with a +5V power supply. All
logic inputs are TTL and CMOS compatible. It comes in
space-saving 24-pin DIP and 28-pin SO packages.
Applications
Digital Offset/Gain Adjustment
Arbitrary Waveform Generators
Industrial Process Controls
Automatic Test Equipment
Motion Control Systems
Programmable Amplifiers/Attenuators
WP-Controlled Systems
Functional Diagram
Features
t Four 12-Bit Accurate DACs
. Fast 3-Wire Serial Interface
. Low Differential Nonlinearity: inLSB Max
. Low Integral Nonlinearity: i1LSB Max
. Gain Accuracy to 111/2LSB Max
. Low Gain Tempco: 5ppm/‘C Max
. Operates from a Single +5V Power Supply
. TTL/CMOS Compatible
. Available in 24-Pln DIP and 28-Pin SO Packages
Ordering Information
PART Jf/die PlN-PACKAGE (35%)
MAX514ACNG 0°C to +70°C 24 Narrow Plastic DIP :1/2
MAX514BCNG 0°C to +70''C 24 Narrow Plastic DIP t1
MAX514ACWI 0''C to +70'C 28 Wide SO tl/2
MAX514BCWI 0°C to +70''C 28 Wide SO :1
MAX514AENG -40''C to +85°C 24 Narrow Plastic DIP i1/2
MAX514BENG -40'C to +85''C 24 Narrow Plastic DIP :1
._ _ VREFA
— — VREFB
HHeVHEFD
I HFBA
- RFBA
SRIA EH 12-8IT 12-8IT.12-8l (WW
SHIFT REGISTER -oN DAC REGIS STER DAC - l/LA
CLKA T A W A c) A T IOUTA
LOADA _-_-_-as-n-a',, i l i Rras Hm,
SMr-- 12-BIT 12-8IT [W‘E
cikir-srilFW,iilsm1 DACHEGIISTEH DAG - loom
ii'iir-r1,-i,s-_-j', I First:
o>w._w
_ RFec
SRIC --r-- 12-BIT 2-19T12-
SHIFT REGISTER DAC REGISTER D - Iomc
CLKC ---- C r) C
LOADC fi—~t l HFBD RFBD
SRID E, 12-BIT 12-8lf 12-BlT -
SHIFT REGISTER DAC REGISTER , DAC - IOUTD
CLKD - o D A
LOAN)------' MAXIM 4r- GNU
MAX574
CONFIGURATION IS FOR so.
MAX514AEWI -40'C to +85''C 28 Wide so i1/2
MAX514BEWI -40''C to +85°C 28 Wide so i1
Pin Configurations
TOPVIEW
VREFA I El Um
Rm I E SHIA
|OUTA E E LTRrd
VREFB [E E V
Rrsa [E E SRIB
Iowa 6 19 LOADB
VREFC ff "'ff/d" fi,] SHIC
RFBC E Ci Ltrgrc
Ioutc E jiil cue
REBD 1O EI VREFD
IOUTDE E] SRID
GND [E E m
‘INTEHNALLY CONNECTED
Pin Conligwalions continued on last page
Maxlm tn tegrated Products 1
& the latest literature: http://, .
For small orders, phone 1-800-835-8769.
http://www.
{HLQXWW
MAX5 17 4
CM03 Quad], 112-31711;
Serial-Ilnput Multiplying DAG
ABSOLUTE MAXIMUM RATINGS (Note 1)
VDD to GND ............................... -0.3V, +17V 28-Pin Wide so
VREF to GND .................................. :25V (derate 12.5mW/"C above +70°C) ............ 1000mW/°C
VRFB to GND ................................... i25V Maximum Current into Any Pin ..................... 50mA
Digital Input Voltage to GND ............. -0,3V, VDD + 0.3V Operating Temperature Ranges:
IOUTA to GND ......................... -0.3V, VDD + 0.3V MAX514_C_ ........................... 0°C to +70''C
Continuous Power Dissipation (TA = +70''C) MAX514_E_ ......................... -40°C to +85°C
24-Pin Narrow Plastic DIP StorageTemperature Range .............. -65'C to +150°C
(derate 8.7mW/''C above +70°C) ................. 696mW Lead Temperature (soldering , 10 sec) ............. +300°C
Stresses beyond those listed under 'Absolute Maximum Ratings' may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated m the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect dewce reliability,
ELECTRICAL CHARACTERISTICS
(VDD = +5V, VREF = +10V, IOUT = IOUTA = GND = OV, TA = TMIN to TMAx. unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
STATIC PERFORMANCE
Resolution N 12 Bits
Integral Nonlinearity INL tl LSB
Differential Nonlinearity DNL Guaranteed monotonic MAX514A 11/2 LSB
MAX514B :1
Using - a MAX514A 11.5
Full-Scale Error (Gain Error) FSE internal TA - +25 C MAX514B i2.5 LSB
RFB TA = TMIN to TMAx ALL $2.5
'(fdi't)" Temperature Coefficient TCFS Using internal RFB i1 t5 ppm/“C
DC Power-Supply Rejection PSR VDD = 4.75V to 5.25V 10.001 °/o/°/o
DYNAMIC PERFORMANCE (Note 1)
TA = +2S'C, to 1/2LSB, lOUT load is 100m l13pF,
Current Settling Time ts [le, register alternately loaded with all Is and 0.25 1 us
. _ VREF = 0V, IOUT load is 1009 I I13PF, DAC regis-
Digital Feedthrough Q ter alternately loaded with all Is and all Os 2 20 nV-s
V =t10V - at10kH ,DAC ' t l aded
AC Feedthrough at low FTE JjiiFat Os p p Z regls er 0 0.4 1 mVp-p
Total Harmonic Distortion THD 2tt i VRMS at 1kHz, DAC register loaded -85 dB
WI a s
. , T = o kH -
Output Noise Voltage Density en 2tgi'e'Fkialionr1z//l, U100 Z, measured 13 15 nVNHz
REFERENCE INPUT
Reference Input Resistance RREF VREF pin to IQUT 7 11 25 k9
Input Resistance Tempco TCR -200 pprn/"C
ANALOG OUTPUTS
TA = +25'C i0.5 t.5
IOUT Leakage Current ILKG DAC register loaded with all Os TA = TMIN to +25 nA
TMAX -
IOUTA Leakage Current . TA = +25% t0.5 1‘5
(DAC A, so package only) ILKG DAC register loaded with all ls TA = TMIN to t25 nA
TMAX -
' DAC register loaded with all Os 55 80
l T Ca acitance Note 1 Coun F
W p ( ) DAC register loaded with all Is 85 110 p
IOUTA Capacitance COUT2 DAC register loaded with all Os 85 110 pF
(DAC A, so package only) (Note 1) DAC register loaded with all Is 55 80
2 IVI A x I An
