參數(shù)資料
型號(hào): LTC1627I28
英文描述: Analog IC
中文描述: 模擬IC
文件頁數(shù): 1/16頁
文件大?。?/td> 175K
代理商: LTC1627I28
1
LTC1655/LTC1655L
16-Bit Rail-to-Rail
Micropower DACs in
SO-8 Package
s
16-Bit Monotonicity Over Temperature
s
Deglitched Rail-to-Rail Voltage Output
s
SO-8 Package
s
ICC(TYP): 600A
s
Internal Reference: 2.048V (LTC1655)
1.25V (LTC1655L)
s
Maximum DNL Error:
±1LSB
s
Settling Time: 20
S to ±1LSB
s
750kHz Max Update Rate
s
Power-On Reset to Zero Volts
s
3-Wire Cascadable Serial Interface
s
Low Cost
s
Pin Compatible Upgrade for LTC1451 12-Bit DAC
Family
The LTC
1655/LTC1655L are rail-to-rail voltage output,
16-bit digital-to-analog converters in an SO-8 package.
They include an output buffer and a reference. The 3-wire
serial interface is compatible with SPI/QSPI and
MICROWIRE
TM protocols. The CLK input has a Schmitt
trigger that allows direct optocoupler interface.
The LTC1655 has an onboard 2.048V reference that can be
overdriven to a higher voltage. The output swings from 0V
to 4.096V when using the internal reference. The typical
power dissipation is 3.0mW on a single 5V supply.
The LTC1655L has an onboard 1.25V reference that can be
overdriven to a higher voltage. The output swings from 0V
to 2.5V when using the internal reference. The typical
power dissipation is 1.8mW on a single 3V supply.
The LTC1655/LTC1655L are pin compatible with Linear
Technology’s 12-bit VOUT DAC family, allowing an easy
upgrade path. They are the only buffered 16-bit DACs in
an SO-8 package and they include an onboard reference
for standalone performance.
s
Digital Calibration
s
Industrial Process Control
s
Automatic Test Equipment
s
Cellular Telephones
, LTC and LT are registered trademarks of Linear Technology Corporation.
MICROWIRE is a trademark of National Semiconductor Corporation.
+
16-BIT
DAC
LTC1655: 4.5V TO 5.5V
LTC1655L: 2.7V TO 5.5V
LTC1655: 2.048V
LTC1655L: 1.25V
GND
POWER-ON
RESET
TO
OTHER
DACS
16-BIT
SHIFT
REG
AND
DAC
LATCH
P
DIN
VCC
16
REF
2
86
DOUT
4
5
1655/55L TA01
CLK
1
CS/LD
3
7
VOUT
REF
Functional Block Diagram: 16-Bit Rail-to-Rail DAC
Differential Nonlinearity
vs Input Code
CODE
0
– 1.0
– 0.2
– 0.4
– 0.6
– 0.8
0
0.2
0.4
0.6
0.8
1.0
DNL
ERROR
(LSB)
16384
32768
1655/55L TA02
49152
65535
APPLICATIO S
U
FEATURES
DESCRIPTIO
U
FU CTIO AL BLOCK DIAGRA
UU
W
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