MAX513. 513CS Datasheet

513CS Datasheet PDF


Part

513CS

Description

MAX513

Manufacture

Maxim Integrated Products

Page 16 Pages
Datasheet
Download 513CS Datasheet


513CS Datasheet
19-0252; Rev 2; 5/96
Low-Cost, Triple, 8-Bit Voltage-Output DACs
with Serial Interface
_______________General Description
The MAX512/MAX513 contain three 8-bit, voltage-output
digital-to-analog converters (DAC A, DAC B, and DAC C).
Output buffer amplifiers for DACs A and B provide voltage
outputs while reducing external component count. The
output buffer for DAC A can source or sink 5mA to within
0.5V of VDD or VSS. The buffer for DAC B can source or
sink 0.5mA to within 0.5V of VDD or VSS. DAC C is
unbuffered, providing a third voltage output with increased
accuracy. The MAX512 operates with a single
+5V ±10% supply, and the MAX513 operates with a
+2.7V to +3.6V supply. Both devices can also operate
with split supplies.
The 3-wire serial interface has a maximum operating fre-
quency of 5MHz and is compatible with SPI™, QSPI™,
and Microwire™. The serial input shift register is 16 bits
long and consists of 8 bits of DAC input data and 8 bits
for DAC selection and shutdown. DAC registers can be
loofaC–d—Se–.d
independently or in parallel at the positive
A latched logic output is also available for
edge
auxil-
iary control.
Ultra-low power consumption and small packages
(14-pin DIP/SO) make the MAX512/MAX513 ideal for
portable and battery-powered applications. Supply cur-
rent is only 1mA, dropping to less than 1µA in shutdown.
Any of the three DACs can be independently shut down.
In shutdown mode, the DAC's R-2R ladder network is
disconnected from the reference input, minimizing sys-
tem power consumption.
________________________Applications
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Digital Gain and Offset Adjustment
Programmable Attenuators
Programmable Current Sources
Programmable Voltage Sources
RF Digitally Adjustable Bias Circuits
VCO Tuning
__________________Pin Configuration
TOP VIEW
____________________________Features
o Operate from a Single +5V (MAX512) or
+3V (MAX513) Supply, or from Bipolar Supplies
o Low Power Consumption
1mA Operating Current
<1µA Shutdown Current
o Unipolar or Bipolar Outputs
o 5MHz, 3-Wire Serial Interface
o SPI, QSPI, and Microwire Compatible
o Two Buffered, Bipolar-Output DACs (DACs A/B)
o Independently Programmable Shutdown Mode
o Space-Saving 14-Pin SO/DIP Packages
o Pin and Software Reset
______________Ordering Information
PART
TEMP. RANGE
PIN-PACKAGE
MAX512CPD
0°C to +70°C
14 Plastic DIP
MAX512CSD
0°C to +70°C
14 SO
MAX512C/D
0°C to +70°C
Dice*
Ordering Information continued at end of data sheet.
* Contact factory for dice specifications.
________________Functional Diagram
SCLK
3
DIN
1
CS REFAB REFC
2 12 11
DAC
LATCH
A
DAC A
DAC
LATCH
B
DAC B
OUTA
8
OUTB
9
DIN 1
CS 2
SCLK 3
RESET 4
VDD 5
GND 6
VSS 7
MAX512
MAX513
14 LOUT
13 I.C.
12 REFAB
11 REFC
10 OUTC
9 OUTB
8 OUTA
DIP/SO
DAC
LATCH
C
LATCH
4
RESET
DAC C
OUTC
10
MAX512
MAX513
LOUT
14
57
VDD VSS
6
GND
Microwire is a trademark of National Semiconductor Corp. SPI and QSPI are trademarks of Motorola Inc.
________________________________________________________________ Maxim Integrated Products 1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800

513CS Datasheet
Low-Cost, Triple, 8-Bit Voltage-Output DACs
with Serial Interface
ABSOLUTE MAXIMUM RATINGS
VDD to GND ................................................................ -0.3V, +6V
VSS to GND................................................................. -6V, +0.3V
VDD to VSS ................................................................ -0.3V, +12V
Digital Inputs and Outputs to GND............... -0.3V, (VDD + 0.3V)
REFAB ................................................ (VSS - 0.3V), (VDD + 0.3V)
OUTA, OUTB (Note 1) ....................................................VSS, VDD
OUTC.............................................................-0.3V, (VDD + 0.3V)
REFC..............................................................-0.3V, (VDD + 0.3V)
Continuous Power Dissipation (TA = +70°C)
Plastic DIP (derate 10.00mW/°C above +70°C) ............800mW
SO (derate 8.33mW/°C above +70°C) ...........................667mW
CERDIP (derate 9.09mW/°C above +70°C) ...................727mW
Operating Temperature Ranges
MAX51_C_ _ .........................................................0°C to +70°C
MAX51_E_ _.......................................................-40°C to +85°C
MAX51_MJD ....................................................-55°C to +125°C
Storage Temperature Range .............................-65°C to +165°C
Lead Temperature (soldering, 10sec) .............................+300°C
Note 1: The outputs may be shorted to VDD, VSS, or GND if the package power dissipation is not exceeded. Typical short-circuit cur-
rent to GND is 50mA.
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 in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VDD = +4.5V to +5.5V for MAX512, VDD = +2.7V to +3.6V for MAX513, VSS = GND = 0V, REFAB = REFC = VDD,
TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
STATIC PERFORMANCE
Resolution
N
8 Bits
Differential Nonlinearity
DNL Guaranteed monotonic
±1 LSB
Integral Nonlinearity
DAC A/B (Note 2)
INL
DAC C
±1.5
±1
LSB
LSB
Total Unadjusted Error
TUE (Note 2)
±1 LSB
Zero-Code Temperature
Coefficient
DAC A/B
DAC C
100
µV/°C
5
Power-Supply Rejection Ratio
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PSRR
MAX512, 4.5V VDD 5.5V,
REFAB = REFC = 4.096V
MAX513, 2.7V VDD 3.6V,
REFAB = REFC = 2.4V
0.01
0.015
%/%
REFERENCE INPUTS
Reference Input Voltage Range
Reference Input Capacitance
REFAB
REFC
VSS
GND
VDD
VDD
V
25 pF
Reference Input Resistance
RREF
REFAB (Note 3)
REFC (Note 3)
8
k
12
Reference Input Resistance
(shutdown mode)
REFAB, REFC
2 M
2 _______________________________________________________________________________________


Features Datasheet pdf 19-0252; Rev 2; 5/96 Low-Cost, Triple, 8-Bit Voltage-Output DACs with Serial I nterface _______________General Descrip tion The MAX512/MAX513 contain three 8- bit, voltage-output digital-to-analog c onverters (DAC A, DAC B, and DAC C). Ou tput buffer amplifiers for DACs A and B provide voltage outputs while reducing external component count. The output b uffer for DAC A can source or sink 5mA to within 0.5V of VDD or VSS. The buffe r for DAC B can source or sink 0.5mA to within 0.5V of V DD or V SS . DAC C is unbuffered, providing a third voltage output with increased accuracy. The MAX 512 operates with a single +5V ±10% su pply, and the MAX513 operates with a +2 .7V to +3.6V supply. Both devices can a lso operate with split supplies. The 3- wire serial interface has a maximum ope rating frequency of 5MHz and is compati ble with SPI™, QSPI™, and Microwire ™. The serial input shift register is 16 bits long and consists of 8 bits of DAC input data and 8 bits for DAC selection and shutdown. DAC registe.
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