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參數(shù)資料
| 型號： | ML2350 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Single Supply, Programmable 8-Bit D/A Converters(單電源可編程8位D/A轉(zhuǎn)換器) |
| 中文描述： | 單電源，可編程8位D / A轉(zhuǎn)換器（單電源可編程8位的D / A轉(zhuǎn)換器） |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 182K |
| 代理商： | ML2350 |
May 1997
ML2340
*
, ML2350
**
Single Supply, Programmable
8-Bit D/A Converters
GENERAL DESCRIPTION
The ML2340 and ML2350 are CMOS voltage output, 8-bit
D/A converters with an internal voltage reference and a
μ
P
interface. These devices are designed to be powered by a
single supply, although they can be powered from dual
power supplies. The output voltage swings above zero
scale (V
ZS
) in the unipolar mode or around zero scale
(V
ZS
) in the bipolar mode, both with programmable gain.
V
ZS
can be set to any voltage from AGND to 2.25V below
V
CC
. The digital and analog grounds, DGND and AGND,
are totally independent of each other. DGND can be set to
any voltage from AGND to 4.5V below V
CC
for easy
interfacing to standard TTL and CMOS logic families.
The high level of integration and versatility of the ML2340
and ML2350 makes them ideal for a wide range of
applications in hard disk drives, automotive, telecom, and
a variety of general purpose industrial uses. One specific
intended application is controlling a hard disk voice coil.
The internal reference of the ML2340 provides a 2.25V or
4.50V output for use with A/D converters that use a single
5V
±
10% power supply, while the ML2350 provide a
2.50V or 5.00V reference output.
FEATURES
I
Programmable output voltage gain settings of 2, 1,
1
/
2
,
1
/
4
provide 8-, 9-, 10-, or 11-bit effective resolution
around zero
I
AGND to V
CC
output voltage swing
I
Bipolar or unipolar output voltage
I
4.5V to 13.2V single supply or
±
2.25V to
±
6.5V
dual-supply operation
I
Transparent latch allows microprocessor interface
with 30ns setup time
I
Data flow-through mode
I
Voltage reference output
ML2340 ............................................2.25V or 4.50V
ML2350 ............................................2.50V or 5.00V
I
Nonlinearity ...................................
±
1
/
4
LSB or
±
1
/
2
LSB
I
Output voltage settling time over temperature and
supply voltage tolerance
Within 1V of V
CC
and AGND....................2.5
μ
s max
Within 100mV of V
CC
and AGND................ 5
μ
s max
I
TTL and CMOS compatible digital inputs
I
Low supply current (5V supply) ..................... 5mA max
I
18-pin DIP or surface mount SOlC
BLOCK DIAGRAM
OP
AMP
RESISTORS
SWITCHES
DECODERS
8-BIT D/A
DATA LATCH
V
REF
V
REFOUT
V
REFIN
DGND
V
ZS
V
CC
AGND
–
+
V
OUT
DB0
(LSB)
DB7
(MSB)
XFER
GAIN 0
GAIN 1
* This Part Is Obsolete
** This Part Is End Of Life As Of August 1, 2000
REV. 1.0 10/10/2000
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