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12-Bit DAC. TLV5638CD Datasheet

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12-Bit DAC. TLV5638CD Datasheet






TLV5638CD DAC. Datasheet pdf. Equivalent




TLV5638CD DAC. Datasheet pdf. Equivalent





Part

TLV5638CD

Description

Low Power Dual 12-Bit DAC



Feature


TLV5638 www.ti.com SLAS225C – JUNE 1 999 – REVISED JANUARY 2004 2.7-V TO 5.5-V LOW-POWER DUAL 12-BIT DIGITAL-TO- ANALOG CONVERTER WITH INTERNAL REFERENC E AND POWER DOWN FEATURES • Dual 12- Bit Voltage Output DAC • Programmable Internal Reference • Programmable Se ttling Time: – 1 µs in Fast Mode, 3.5 µs in Slow Mode • Compatible W ith TMS320 and SPI™ Serial Ports • D.
Manufacture

Texas Instruments

Datasheet
Download TLV5638CD Datasheet


Texas Instruments TLV5638CD

TLV5638CD; ifferential Nonlinearity <0.5 LSB Typ Monotonic Over Temperature APPLICATIO NS • Digital Servo Control Loops • Digital Offset and Gain Adjustment • Industrial Process Control • Machine and Motion Control Devices • Mass Sto rage Devices D, JG PACKAGE (TOP VIEW) DIN 1 SCLK 2 CS 3 OUTA 4 8 VDD 7 OUTB 6 REF 5 AGND FK PACKAGE (TOP VIEW) N C DIN NC VDD NC NC SCLK NC CS.


Texas Instruments TLV5638CD

NC 3 2 1 20 19 4 18 5 17 6 16 7 15 8 14 9 10 11 12 13 NC OUTB NC REF NC NC OUTA NC AGND NC DESCRIPTION The TLV5638 is a dual 12-bit voltage o utput DAC with a flexible 3-wire serial interface. The serial interface allows glueless interface to TMS320, SPI™, QSPI™, and Microwire™ serial ports. It is programmed with a 16-bit serial string containing 4 cont.


Texas Instruments TLV5638CD

rol and 12 data bits. The resistor strin g output voltage is buffered by a x2 ga in rail-to-rail output buffer. The buff er features a Class AB output stage to improve stability and reduce settling t ime. The programmable settling time of the DAC allows the designer to optimize speed vs power dissipation. With its o n-chip programmable precision voltage r eference, the TLV5.

Part

TLV5638CD

Description

Low Power Dual 12-Bit DAC



Feature


TLV5638 www.ti.com SLAS225C – JUNE 1 999 – REVISED JANUARY 2004 2.7-V TO 5.5-V LOW-POWER DUAL 12-BIT DIGITAL-TO- ANALOG CONVERTER WITH INTERNAL REFERENC E AND POWER DOWN FEATURES • Dual 12- Bit Voltage Output DAC • Programmable Internal Reference • Programmable Se ttling Time: – 1 µs in Fast Mode, 3.5 µs in Slow Mode • Compatible W ith TMS320 and SPI™ Serial Ports • D.
Manufacture

Texas Instruments

Datasheet
Download TLV5638CD Datasheet




 TLV5638CD
TLV5638
www.ti.com
SLAS225C – JUNE 1999 – REVISED JANUARY 2004
2.7-V TO 5.5-V LOW-POWER DUAL 12-BIT DIGITAL-TO-ANALOG CONVERTER WITH
INTERNAL REFERENCE AND POWER DOWN
FEATURES
Dual 12-Bit Voltage Output DAC
Programmable Internal Reference
Programmable Settling Time:
– 1 µs in Fast Mode,
– 3.5 µs in Slow Mode
Compatible With TMS320 and SPI™ Serial
Ports
Differential Nonlinearity <0.5 LSB Typ
Monotonic Over Temperature
APPLICATIONS
Digital Servo Control Loops
Digital Offset and Gain Adjustment
Industrial Process Control
Machine and Motion Control Devices
Mass Storage Devices
D, JG PACKAGE
(TOP VIEW)
DIN 1
SCLK 2
CS 3
OUTA 4
8 VDD
7 OUTB
6 REF
5 AGND
FK PACKAGE
(TOP VIEW)
NC
SCLK
NC
CS
NC
3 2 1 20 19
4
18
5
17
6
16
7
15
8
14
9 10 11 12 13
NC
OUTB
NC
REF
NC
DESCRIPTION
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, 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.
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, 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 the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1999–2004, Texas Instruments Incorporated




 TLV5638CD
TLV5638
SLAS225C – JUNE 1999 – REVISED JANUARY 2004
www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments 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.
TA
0°C to 70°C
40°C to 85°C
40°C to 125°C
55°C to 125°C
AVAILABLE OPTIONS
SOIC
(D)
TLV5638CD
TLV5638ID
TLV5638QD
TLV5638QDR
PACKAGE
CERAMIC DIP
(JG)
TLV5638MJG
20 PAD LCCC
(FK)
TLV5638MFK
FUNCTIONAL BLOCK DIAGRAM
REF AGND VDD
PGA With
Output Enable
Voltage
Bandgap
Power-On
Reset
Power
and Speed
Control
2
DIN
SCLK
CS
2
2-Bit
Control
Latch
Serial
Interface
12
and
Control
12
12-Bit
12
DAC A
Latch
Buffer
12
12
12-Bit
DAC B
Latch
x2
OUTA
x2
OUTB
2




 TLV5638CD
www.ti.com
TERMINAL
NAME
NO.
AGND
5
CS
3
DIN
1
OUT A
4
OUT B
7
REF
6
SCLK
2
VDD
8
TLV5638
Terminal Functions
SLAS225C – JUNE 1999 – REVISED JANUARY 2004
I/O/P
DESCRIPTION
P Ground
I Chip select. Digital input active low, used to enable/disable inputs
I Digital serial data input
O DAC A analog voltage output
O DAC B analog voltage output
I/O Analog reference voltage input/output
I Digital serial clock input
P Positive power supply
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range (unless otherwise noted)(1)
Supply voltage (VDD to AGND)
Reference input voltage range
Digital input voltage range
Operating free-air temperature range, TA
TLV5638C
TLV5638I
TLV5638Q
TLV5638M
Storage temperature range, Tstg
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
UNIT
7V
-0.3 V to VDD + 0.3 V
-0.3 V to VDD + 0.3 V
0°C to 70°C
-40°C to 85°C
-40°C to 125°C
-55°C to 125°C
-65°C to 150°C
260°C
(1) 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 under,, recommended operating
conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
DISSIPATION RATING TABLE
PACKAGE
D
FK
JG
TA25°C
POWER RATING
635 mW
1375 mW
1050 mW
DERATING FACTOR
ABOVE TA= 25°C(1)
5.08 mW/°C
11.00 mW/°C
8.40 mW/°C
TA= 70°C
POWER RATING
407 mW
880 mW
672 mW
TA = 85°C
POWER RATING
330 mW
715 mW
546 mW
TA = 125°C
POWER RATING
127 mW
275 mW
210 mW
(1) This is the inverse of the traditional Junction-to-Ambient thermal Resistance (RθJA). Thermal Resistances are not production tested and
are for informational purposes only.
3






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