参数资料
型号: TLC7628IDW
厂商: Texas Instruments, Inc.
英文描述: DUAL 8-BIT MULTIPLYING DIGITAL-TO-ANALOG CONVERTERS
中文描述: 双8位乘法数字到模拟转换器
文件页数: 7/10页
文件大小: 156K
代理商: TLC7628IDW
TLC7628C, TLC7628E, TLC7628I
DUAL 8-BIT MULTIPLYING
DIGITAL-TO-ANALOG CONVERTERS
SLAS063A – APRIL 1989 – REVISED MAY 1995
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
φ
2
Address
Decoder
Logic
Address Bus
Data Bus
D0–D7
DB7
DB0
WR
CS
DACA/DACB
TLC7628
VMA
CPU
6800
A8–A15
A
A + 1
NOTE D: A = decoded address for TLC7628 DACA
A + 1 = decoded address for TLC7628 DACB
Figure 5. TLC7628 – 6800 Interface
voltage-mode operation
The current-multiplying DAC in these devices can be operated in a voltage mode. In the voltage mode, a fixed
voltage is placed on the current output terminal. The analog output voltage is then available at the reference
voltage terminal. An example of a current-multiplying DAC operating in voltage mode is shown in Figure 6. The
relationship between the fixed input voltage and the analog output voltage is given by the following equation:
Analog output voltage = fixed input voltage (D/256)
where D = the digital input. In voltage-mode operation, these devices meet the following specification:
LINEARITY ERROR
TEST CONDITIONS
MIN
MAX
UNIT
Analog output voltage for REFA, REFB
VDD = 12 V,
OUTA or OUTB at 5 V,
TA = 25
°
C
1
LSB
2R
2R
2R
“0”
“1”
2R
R
R
R
R
OUT (Fixed input voltage)
AGND
REF
(Analog output voltage)
Figure 6. Current-Multiplying DAC Operating in Voltage Mode
相关PDF资料
PDF描述
TLC7628EFN DUAL 8-BIT MULTIPLYING DIGITAL-TO-ANALOG CONVERTERS
TLC7628CFN DUAL 8-BIT MULTIPLYING DIGITAL-TO-ANALOG CONVERTERS
TLC7628C DUAL 8-BIT MULTIPLYING DIGITAL-TO-ANALOG CONVERTERS
TLC7628E DUAL 8-BIT MULTIPLYING DIGITAL-TO-ANALOG CONVERTERS
TLC7628EDW DUAL 8-BIT MULTIPLYING DIGITAL-TO-ANALOG CONVERTERS
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