TLV5604_15 Datasheet, PDF (1/31 Pages) Texas Instruments – 2.7-V TO 5.5-V 10-BIT 3-μS QUADRUPLE DIGITAL-TO-ANALOG CONVERTERS WITH POWER DOWN

TLV5604
2.7-V TO 5.5-V 10-BIT 3-µS QUADRUPLE DIGITAL-TO-ANALOG CONVERTERS
WITH POWER DOWN
SLAS176B – DECEMBER 1997 – REVISED JULY 2002
D Four 10-Bit D/A Converters
D Programmable Settling Time
of 3 µs or 9 µs Typ
D TMS320, (Q)SPI, and Microwire
Compatible Serial Interface
D Internal Power-On Reset
D Low Power Consumption:
5.5 mW, Slow Mode – 5-V Supply
3.3 mW, Slow Mode – 3-V Supply
D Reference Input Buffers
D Voltage Output Range . . . 2 × the Reference
Input Voltage
D Monotonic Over Temperature
D Dual 2.7-V to 5.5-V Supply (Separate Digital
and Analog Supplies)
description
The TLV5604 is a quadruple 10-bit voltage output
digital-to-analog converter (DAC) with a flexible
4-wire serial interface. The 4-wire serial interface
allows glueless interface to TMS320, SPI, QSPI,
and Microwire serial ports. The TLV5604 is
programmed with a 16-bit serial word comprised
of a DAC address, individual DAC control bits, and
a 10-bit DAC value.
D Hardware Power Down (10 nA)
D Software Power Down (10 nA)
D Simultaneous Update
applications
D Battery Powered Test Instruments
D Digital Offset and Gain Adjustment
D Industrial Process Controls
D Machine and Motion Control Devices
D Communications
D Arbitrary Waveform Generation
D OR PW PACKAGE
(TOP VIEW)
DV_DD 1
PD 2
LDAC 3
DIN 4
SCLK 5
CS 6
FS 7
DGND 8
16 AV_DD
15 REFINAB
14 OUTA
13 OUTB
12 OUTC
11 OUTD
10 REFINCD
9 AGND
The device has provision for two supplies: one digital supply for the serial interface (via pins DV_DD and DGND),
and one for the DACs, reference buffers and output buffers (via pins AV_DD and AGND). Each supply is
independent of the other, and can be any value between 2.7 V and 5.5 V. The dual supplies allow a typical
application where the DAC will be controlled via a microprocessor operating on a 3-V supply (also used on pins
DV_DD and DGND), with the DACs operating on a 5-V supply. Of course, the digital and analog supplies can be
tied together.
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. A rail-to-rail output stage and a power-down mode
makes it ideal for single voltage, battery based applications. The settling time of the DAC is programmable to
allow the designer to optimize speed versus power dissipation. The settling time is chosen by the control bits
within the 16-bit serial input string. A high-impedance buffer is integrated on the REFINAB and REFINCD
terminals to reduce the need for a low source impedance drive to the terminal. REFINAB and REFINCD allow
DACs A and B to have a different reference voltage then DACs C and D.
The device, implemented with a CMOS process, is available in 16-terminal SOIC and TSSOP packages. The
TLV5604C is characterized for operation from 0°C to 70°C. The TLV5604I is characterized for operation from
– 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.
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.
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Copyright  2002, Texas Instruments Incorporated
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