TLC7528CNSR Datasheet, PDF (1/27 Pages) Texas Instruments – DUAL 8-BI MULTIPLYING DIGITAL-TO-ANALOG CONVERTERS

TLC7528C, TLC7528E, TLC7528I
DUAL 8ĆBIT MULTIPLYING
DIGITALĆTOĆANALOG CONVERTERS
SLAS062E − JANUARY 1987 − REVISED NOVEMBER 2008
D Easily Interfaced to Microprocessors
D On-Chip Data Latches
D Monotonic Over the Entire A/D Conversion
Range
D Interchangeable With Analog Devices
AD7528 and PMI PM-7528
D Fast Control Signaling for Digital Signal
Processor (DSP) Applications Including
Interface With TMS320
D Voltage-Mode Operation
D CMOS Technology
KEY PERFORMANCE SPECIFICATIONS
Resolution
Linearity Error
Power Dissipation at VDD = 5V
Settling Time at VDD = 5V
Propagation Delay Time at VDD = 5V
8 bits
1/2LSB
20mW
100ns
80ns
DW, N OR PW PACKAGE
(TOP VIEW)
AGND ₁
OUTA ₂
RFBA ₃
REFA ₄
DGND ₅
DACA/DACB 6
(MSB) DB7 7
DB6 8
DB5 9
DB4 10
20 ^OUTB
19 ^RFBB
18 ^REFB
17 ^V_DD
16 ^WR
15 CS
14 DB0 (LSB)
13 DB1
12 DB2
11 DB3
FN PACKAGE
(TOP VIEW)
description
The TLC7528C, TLC7528E, and TLC7528I are
dual, 8-bit, digital-to-analog converters (DACs)
designed with separate on-chip data latches and
feature exceptionally close DAC-to-DAC match-
ing. Data are transferred to either of the two DAC
data latches through a common, 8-bit, input port.
Control input DACA/DACB determines which
DAC is to be loaded. The load cycle of these
devices is similar to the write cycle of a
random-access memory, allowing easy interface
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.
REFA
DGND
DACA/DACB
(MSB) DB7
DB6
3 2 1 20 19
4
18
5
17
6
16
7
15
8
14
9 10 11 12 13
REFB
V_DD
WR
CS
DB0 (LSB)
These devices operate from a 5V to 15V power supply and dissipates less than 15mW (typical). The 2- or
4-quadrant multiplying makes these devices a sound choice for many microprocessor-controlled gain-setting
and signal-control applications. It can be operated in voltage mode, which produces a voltage output rather than
a current output. Refer to the typical application information in this data sheet.
The TLC7528C is characterized for operation from 0°C to +70°C. The TLC7528I is characterized for operation
from −25°C to +85°C. The TLC7528E is characterized for operation from − 40°C to +85°C.
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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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