TLC7628C, TLC7628E, TLC7628I
DUAL 8-BIT MULTIPLYING
DIGITAL-TO-ANALOG CONVERTERS
SLAS063A – APRIL 1989 – REVISED MAY 1995
DW OR N PACKAGE
(TOP VIEW)
Easy Microprocessor Interface
On-Chip Data Latches
Digital Inputs Are TTL-Compatible With
10.8-V to 15.75-V Power Supply
AGND
OUTA
RFBA
REFA
DGND
OUTB
RFBB
REFB
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
Monotonic Over the Entire A/D Conversion
Range
V
DD
Fast Control Signaling for Digital Signal
Processor (DSP) Applications Including
Interface With TMS320
WR
CS
DB0 (LSB)
DB1
DB2
DACA/DACB
(MSB) DB7
DB6
CMOS Technology
DB5
DB4
KEY PERFORMANCE SPECIFICATIONS
DB3
Resolution
Linearity Error
Power Dissipation
Settling Time
Propagation Delay Time
8 bits
1/2 LSB
20 mW
100 ns
80 ns
FN PACKAGE
(TOP VIEW)
description
3
2 1 20 19
The TLC7628C, TLC7628E, and TLC7628I are
dual, 8-bit, digital-to-analog converters (DACs)
designed with separate on-chip data latches and
REFB
REFA
DGND
18
17
16
15
14
4
5
6
7
8
V
DD
WR
DACA/DACB
(MSB) DB7
DB6
feature
exceptionally
close DAC-to-DAC
CS
matching. Data is transferred to either of the two
DAC data latches through a common, 8-bit input
port. Control input DACA/DACB determines
which DAC is loaded. The load cycle of these
devices is similar to the write cycle of a
random-access memory, allowing easy interface
DB0 (LSB)
9 10 11 12 13
to most popular microprocessor buses and output ports. Segmenting the high-order bits minimizes glitches
during changes in the most significant bits, where glitch impulse is typically the strongest.
The TLC7628C operates from a 10.8-V to 15.75-V power supply and is TTL-compatible over this range. 2- or
4-quadrant multiplying makes these devices a sound choice for many microprocessor-controlled gain-setting
and signal-control applications.
The TLC7628C is characterized for operation from 0°C to 70°C. The TLC7628I is characterized for operation
from –25°C to 85°C. The TLC7628E is characterized for operation from –40°C to 85°C.
AVAILABLE OPTIONS
PACKAGE
SMALL OUTLINE
PLASTIC DIP
(DW)
PLASTIC CHIP
CARRIER
(FN)
T
A
PLASTIC DIP
(N)
0°C to 70°C
–25°C to 85°C
–40°C to 85°C
TLC7628CDW
TLC7628IDW
TLC7628EDW
TLC7628CFN
TLC7628IFN
TLC7628EFN
TLC7628CN
TLC7628IN
TLC7628EN
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 1995, 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
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265