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TLV5639I Datasheet Preview

TLV5639I Datasheet

Low Power 12-Bit DAC

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www.ti.com
DW−20
PW−20
TLV5639C
TLV5639I
SLAS189C – MARCH 1999 – REVISED JANUARY 2004
2.7-V TO 5.5-V LOW-POWER 12-BIT DIGITAL-TO-ANALOG CONVERTERS
WITH INTERNAL REFERENCE AND POWER DOWN
FEATURES
12-Bit Voltage Output DAC
Programmable Internal Reference
Programmable Settling Time vs Power
Consumption
– 1 µs in Fast Mode
– 3.5 µs in Slow Mode
Compatible With TMS320
Differential Nonlinearity . . . <0.5 LSB Typ
Voltage Output Range . . . 2x the Reference
Voltage
Monotonic Over Temperature
DW OR PW PACKAGE
(TOP VIEW)
D2 1
D3 2
D4 3
D5 4
D6 5
D7 6
D8 7
D9 8
D10 9
D11 10
20 D1
19 D0
18 CS
17 WE
16 LDAC
15 REG
14 AGND
13 OUT
12 REF
11 VDD
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
TA
0°C to 70°C
-40°C to 85°C
PACKAGE
SOIC (DW)
TSSOP (PW)
TLV5639CDW
TLV5639CPW
TLV5639IDW
TLV5639IPW
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 the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1999–2004, Texas Instruments Incorporated




etcTI

TLV5639I Datasheet Preview

TLV5639I Datasheet

Low Power 12-Bit DAC

No Preview Available !

TLV5639C
TLV5639I
SLAS189C – MARCH 1999 – REVISED JANUARY 2004
www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
FUNCTIONAL BLOCK DIAGRAM
REF AGND VDD
D(0–11)
REG
CS
WE
Power-On
Reset
Interface
Control
4
4-Bit
Control
Latch
12 12-Bit
DAC
Holding
Latch
PGA With
Output Enable
Voltage
Bandgap
Powerdown
and Speed
Control
2
12
12
12-Bit
DAC
Register
x2
OUT
TERMINAL
NAME
NO.
AGND
14
CS
18
D0-D11
1-10, 19,
20
LDAC
16
OUT
13
REG
15
REF
12
VDD
11
WE
17
LDAC
Terminal Functions
I/O/P
P
I
I
I
O
I
I/O
P
I
DESCRIPTION
Ground
Chip select. Digital input active low, used to enable/disable inputs
Data input
Load DAC. Digital input active low, used to load DAC output
DAC analog voltage output
Register select. Digital input, used to access control register
Analog reference voltage input/output
Positive power supply
Write enable. Digital input active low, used to latch data
2


Part Number TLV5639I
Description Low Power 12-Bit DAC
Maker etcTI
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TLV5639I Datasheet PDF






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