TLV5639C, TLV5639I
2.7 V TO 5.5 V LOW POWER 12-BIT DIGITAL-TO-ANALOG
CONVERTERS WITH INTERNAL REFERENCE AND POWER DOWN
SLAS189 – MARCH 1999
DW OR PW PACKAGE
12-Bit Voltage Output DAC
(TOP VIEW)
Programmable Internal Reference
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
Programmable Settling Time vs Power
Consumption
D2
D3
D1
D0
1 µs in Fast Mode
3.5 µs in Slow Mode
D4
CS
D5
WE
D6
LDAC
REG
AGND
OUT
REF
Compatible With TMS320
D7
Differential Nonlinearity . . . <0.5 LSB Typ
D8
Voltage Output Range . . . 2x the
Reference Voltage
D9
D10
D11
Monotonic Over Temperature
V
DD
applications
Digital Servo Control Loops
Digital Offset and Gain Adjustment
Industrial Process Control
Machine and Motion Control Devices
Mass Storage Devices
description
The TLV5639 is a 12-bit voltage output digital-to-analog converter (DAC) with a microprocessor compatible
parallel interface. It is programmed with a 16-bit data word containing 4 control and 12 data bits. Developed for
a wide range of supply voltages, the TLV5639 can be operated from 2.7 V to 5.5 V.
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 versus power dissipation. Because of its ability to source up to 1 mA, the internal
reference can also be used as a system reference. With its on-chip programmable precision voltage reference,
the TLV5639 simplifies overall system design. The settling time and the reference voltage can be chosen by
the control bits within the 16-bit data word.
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 20-pin SOIC and TSSOP packages in standard commercial and industrial temperature ranges.
AVAILABLE OPTIONS
PACKAGE
T
A
SOIC
(DW)
TSSOP
(PW)
0°C to 70°C
TLV5639CDW TLV5639CPW
TLV5639IDW TLV5639IPW
–40°C to 85°C
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.
Copyright 1999, Texas Instruments Incorporated
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.
1
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