TLV5638 Datasheet, PDF (1/19 Pages) Texas Instruments – 2.7 V TO 5.5 V LOW POWER DUAL 12-BIT DIGITAL-TO-ANALOG CONVERTER WITH INTERNAL REFERENCE AND POWER DOWN

TLV5638
2.7 V TO 5.5 V LOW POWER DUAL 12-BIT DIGITAL-TO-ANALOG
CONVERTER WITH INTERNAL REFERENCE AND POWER DOWN
SLAS225A – JUNE 1999 – REVISED JANUARY 2000
features
D Dual 12-Bit Voltage Output DAC
D Programmable Internal Reference
D Programmable Settling Time:
1 µs in Fast Mode,
3.5 µs in Slow Mode
D Compatible With TMS320 and SPI™ Serial
Ports
D Differential Nonlinearity <0.5 LSB Typ
D Monotonic Over Temperature
D, JG PACKAGE
(TOP VIEW)
DIN 1
SCLK 2
CS 3
OUTA 4
8 V_DD
7 OUTB
6 REF
5 AGND
FK PACKAGE
(TOP VIEW)
applications
D Digital Servo Control Loops
D Digital Offset and Gain Adjustment
D Industrial Process Control
D Machine and Motion Control Devices
D Mass Storage Devices
description
3 2 1 20 19
NC ₄
18 ^NC
SCLK ₅
17 ^OUTB
NC ₆
16 ^NC
CS ₇
15 ^REF
NC ₈
14 ^NC
9 10 11 12 13
The TLV5638 is a dual 12-bit voltage output DAC
with a flexible 3-wire serial interface. The serial
interface allows glueless interface to TMS320 and
SPI™, QSPI™, and Microwire™ serial ports. It is programmed with a 16-bit serial string containing 4 control and
12 data bits.
The resistor string output voltage is buffered by a x2 gain rail-to-rail output buffer. The buffer features a Class
AB output stage to improve stability and reduce settling time. The programmable settling time of the DAC allows
the designer to optimize speed vs power dissipation. With its on-chip programmable precision voltage
reference, the TLV5638 simplifies overall system design.
Because of its ability to source up to 1 mA, the reference can also be used as a system reference. Implemented
with a CMOS process, the device is designed for single supply operation from 2.7 V to 5.5 V. It is available in
an 8-pin SOIC package to reduce board space in standard commercial, industrial, and automotive temperature
ranges. It is also available in JG and FK packages in the military temperature range.
TA
0°C to 70°C
–40°C to 85°C
–40°C to 125°C
–55°C to 125°C
AVAILABLE OPTIONS
PACKAGE
SOIC
(D)
CERAMIC DIP
(JG)
TLV5638CD
—
TLV5638ID
—
TLV5638QD
TLV5638QDR
—
—
TLV5638MJG
20 PAD LCCC
(FK)
—
—
—
TLV5638MFK
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.
SPI and QSPI are trademarks of Motorola, Inc.
Microwire is a trademark of National Semiconductor Corporation.
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.
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright © 2000, Texas Instruments Incorporated
On products compliant to MIL-PRF-38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
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