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參數(shù)資料
| 型號： | LTC7545ALSW#PBF |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 1/8頁 |
| 文件大小： | 0K |
| 描述： | IC D/A CONV 12BIT PARALLEL20SOIC |
| 標準包裝： | 38 |
| 設置時間： | 1µs |
| 位數(shù)： | 12 |
| 數(shù)據(jù)接口： | 并聯(lián) |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 電壓電源： | 單電源 |
| 功率耗散（最大）： | 550µW |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-SOIC（0.295"，7.50mm 寬） |
| 供應商設備封裝： | 20-SOIC |
| 包裝： | 管件 |
| 輸出數(shù)目和類型： | 1 電流，單極；1 電流，雙極 |
| 采樣率（每秒）： | * |
1
LTC7545A
Improved Industry Standard
Parallel 12-Bit Multiplying DAC
S
FEATURE
D
U
ESCRIPTIO
The LTC
7545A is a 12-bit multiplying digital-to-analog
converter (DAC) with a microprocessor compatible paral-
lel input. It is a superior pin compatible replacement for the
industry standard AD7545A and AD7545. Improvements
include better accuracy, better stability over temperature
and supply variations and lower sensitivity to output
amplifier offset.
This very versatile DAC is useful for 2-quadrant and
4-quadrant multiplying, programmable gain and filtering
and single supply noninverting voltage output operation.
Parts are available in 20-pin PDIP and SO packages and
commercial and industrial temperature grades.
s
Improved Direct Replacement for AD7545A
and AD7545
s
DNL and INL Over Temperature:
±0.5LSB
s
Gain Error:
±1LSB Maximum
s
4-Quadrant Multiplication
s
Single 5V or 15V Supply
s
Low Power Consumption
s
Low Cost
s
Process Control and Industrial Automation
s
Software Controlled Gain Adjustment
s
Digitally Controlled Filter and Power Supplies
s
Automatic Test Equipment
U
S
A
O
PPLICATI
, LTC and LT are registered trademarks of Linear Technology Corporation.
U
A
O
PPLICATI
TYPICAL
2-Quadrant Multiplying DAC Has Less Than
0.5LSB (Typ) Total Unadjusted Error
VDD VREF
LTC7545A
RFB
DGND
3
4–15
17
16
2
18
5V
VIN
WR
CS
19
20
1
OUT1
33pF
VOUT
7545A TA01
AGND
–
+
0.1
F
LT
1097
DIGITAL INPUT CODE
0
INTEGRAL
NONLINEARITY
(LSB)
4095
7545A TA02
1024
2048
3072
1.0
0.5
0
–0.5
–1.0
512
1536
2560
3584
TA = 85°C
TA = 25°C
TA = –40°C
Integral Nonlinearity Over Temperature
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