DIGITAL-TO-ANALOG CONVERTER. DAC7512 Datasheet

DAC7512 CONVERTER. Datasheet pdf. Equivalent

Part DAC7512
Description DIGITAL-TO-ANALOG CONVERTER
Feature DAC7512 DAC7512 DAC7512 SBAS156B – JULY 2002 Low-Power, Rail-to-Rail Output, 12-Bit Serial Input .
Manufacture Burr-Brown
Datasheet
Download DAC7512 Datasheet



DAC7512
DAC7512
DAC7512
DAC7512
SBAS156B – JULY 2002
Low-Power, Rail-to-Rail Output, 12-Bit Serial Input
DIGITAL-TO-ANALOG CONVERTER
FEATURES
q microPOWER OPERATION: 135µA at 5V
q POWER-DOWN: 200nA at 5V, 50nA at 3V
q POWER SUPPLY: +2.7V to +5.5V
q TESTED MONOTONIC BY DESIGN
q POWER-ON RESET TO 0V
q THREE POWER-DOWN FUNCTIONS
q LOW POWER SERIAL INTERFACE WITH
SCHMITT-TRIGGERED INPUTS
q ON-CHIP OUTPUT BUFFER AMPLIFIER,
RAIL-TO-RAIL OPERATION
q SYNC INTERRUPT FACILITY
q SOT23-6 AND MSOP-8 PACKAGES
APPLICATIONS
q PORTABLE BATTERY-POWERED
INSTRUMENTS
q DIGITAL GAIN AND OFFSET
ADJUSTMENT
q PROGRAMMABLE VOLTAGE AND
CURRENT SOURCES
DESCRIPTION
The DAC7512 is a low-power, single, 12-bit buffered voltage
output Digital-to-Analog Converter (DAC). Its on-chip preci-
sion output amplifier allows rail-to-rail output swing to be
achieved. The DAC7512 uses a versatile three-wire serial
interface that operates at clock rates up to 30MHz and is
compatible with standard SPI, QSPI, Microwire, and
DSP interfaces.
The reference for the DAC7512 is derived from the power
supply, resulting in the widest dynamic output range possible.
The DAC7512 incorporates a power-on reset circuit that
ensures that the DAC output powers up at 0V and remains
there until a valid write takes place in the device. The
DAC7512 contains a power-down feature, accessed over the
serial interface, that can reduce the current consumption of
the device to 50nA at 5V.
The low power consumption of this part in normal operation
makes it ideally suited to portable battery-operated equip-
ment. The power consumption is 0.7mW at 5V reducing to
1µW in power-down mode.
The DAC7512 is available in a SOT23-6 package and an
MSOP-8 package.
SPI and QSPI are registered trademarks of Motorola.
Microwire is a registered trademark of National Semiconductor.
VDD GND
Power-On
Reset
DAC
Register
REF (+) REF (–)
12-Bit
DAC
Output
Buffer
VOUT
Input
Control
Logic
Power-Down
Control Logic
Resistor
Network
SYNC SCLK DIN
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
www.ti.com
Copyright © 2002, Texas Instruments Incorporated



DAC7512
ABSOLUTE MAXIMUM RATINGS(1)
VDD to GND ........................................................................... –0.3V to +6V
Digital Input Voltage to GND .................................. –0.3V to +VDD + 0.3V
VOUT to GND ........................................................... –0.3V to +VDD + 0.3V
Operating Temperature Range ..................................... –40°C to +105°C
Storage Temperature Range ......................................... –65°C to +150°C
Junction Temperature Range (TJ max) ......................................... +150°C
SOT23 Package:
Power Dissipation .................................................. (TJ max — TA)/ JA
JA Thermal Impedance ......................................................... 240°C/W
Lead Temperature, Soldering:
Vapor Phase (60s) ............................................................... +215°C
Infrared (15s) ........................................................................ +220°C
MSOP Package:
Power Dissipation ........................................................ (TJ max — TA)/ JA
JA Thermal Impedance ......................................................... 206°C/W
JC Thermal Impedance ........................................................... 44°C/W
Lead Temperature, Soldering:
Vapor Phase (60s) ............................................................... +215°C
Infrared (15s) ........................................................................ +220°C
NOTE: (1) Stresses above those listed under “Absolute Maximum Ratings”
may cause permanent damage to the device. Exposure to absolute maximum
conditions for extended periods may affect device reliability.
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Texas Instru-
ments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling
and installation procedures can cause damage.
ESD damage can range from subtle performance degradation
to complete device failure. Precision integrated circuits may be
more susceptible to damage because very small parametric
changes could cause the device not to meet its published
specifications.
PACKAGE/ORDERING INFORMATION
PRODUCT
MINIMUM
RELATIVE
ACCURACY
(LSB)
DIFFERENTIAL
NONLINEARITY
(LSB)
PACKAGE-LEAD
PACKAGE
DESIGNATOR(1)
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
MARKING
ORDERING
NUMBER(1)
TRANSPORT
MEDIA, QUANTITY
DAC7512E
±8
"
"
DAC7512N
±8
"
"
±1
MSOP-8
DGK
–40°C to +105°C
D12E
DAC7512E/250 Tape and Reel, 250
"
"
"
"
"
DAC7512E/2K5 Tape and Reel, 2500
±1
SOT23-6
DBV
–40°C to +105°C
D12N
DAC7512N/250 Tape and Reel, 250
"
"
"
"
"
DAC7512N/3K Tape and Reel, 3000
NOTES: (1) For the most current specifications and package information, refer to our web site at www.ti.com. (2) Models with a slash (/) are available only in Tape
and Reel in the quantities indicated (e.g., /2K5 indicates 2500 devices per reel). Ordering 2500 pieces of “DAC7512E/2K5” will get a single 2500-piece Tape and Reel.
PIN CONFIGURATIONS
Top View
SOT23-6
VOUT 1
GND 2
VDD 3
DAC7512
6 SYNC
5 SCLK
4 DIN
MSOP-8
VDD 1
NC 2
NC 3
VOUT 4
DAC7512
8 GND
7 DIN
6 SCLK
5 SYNC
NC = No Internal Connection
DAC7512N LOT TRACE LOCATION
Top View
PIN DESCRIPTION (SOT23-6)
PIN
NAME
DESCRIPTION
1
VOUT
Analog output voltage from DAC. The output ampli-
fier has rail-to-rail operation.
2
GND
Ground reference point for all circuitry on the part.
3
VDD
Power Supply Input, +2.7V to 5.5V.
4
DIN
Serial Data Input. Data is clocked into the 16-bit
input shift register on the falling edge of the serial
clock input.
5
SCLK
Serial Clock Input. Data can be transferred at rates
up to 30MHz.
6
SYNC
Level triggered control input (active LOW). This is
the frame sychronization signal for the input data.
When SYNC goes LOW, it enables the input shift
register and data is transferred in on the falling
edges of the following clocks. The DAC is updated
following the 16th clock cycle unless SYNC is taken
HIGH before this edge, in which case the rising
edge of SYNC acts as an interrupt and the write
sequence is ignored by the DAC7512.
Pin 1
Bottom View
D12N
YMLL
Pin 1
2
www.ti.com
Lot Trace Code
DAC7512
SBAS156B







@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)