參數(shù)資料
型號: LTC1404
廠商: Linear Technology Corporation
英文描述: Complete SO-8, 12-Bit, 600ksps ADC with Shutdown(SO-8封裝,12位,600ksps,模數(shù)轉(zhuǎn)換器(帶關(guān)斷))
中文描述: 完整的SO - 8,12位,600ksps ADC的與關(guān)斷(以SO - 8封裝,12位,600ksps,模數(shù)轉(zhuǎn)換器(帶關(guān)斷))
文件頁數(shù): 14/24頁
文件大?。?/td> 392K
代理商: LTC1404
14
LTC1404
APPLICATIO
S I
FOR
ATIO
U
W
U
U
Figure 8. LTC1404 Unipolar Transfer Characteristics
INPUT VOLTAGE (V)
0V
O
FS – 1LSB
1404 F08
111...111
111...110
111...101
111...100
000...000
000...001
000...010
000...011
1
LSB
UNIPOLAR
ZERO
1LSB =
FS
4096
4.096
4096
=
Figure 10b. LTC1404 Offset and Full-Scale Adjust Circuit
1404 F10b
+
R2
10k
R9
20
R4
100k
R5
4.3k
FULL-SCALE
ADJUST
R3
100k
R6
400
R1
10k
10k
ANALOG
INPUT
0V TO 4.096V
A1
5V
R8
10k
OFFSET
ADJUST
R7
100k
5V
A
IN
LTC1404
Bipolar Offset and Full-Scale Error Adjustments
Bipolar offset and full-scale errors are adjusted in a similar
fashion to the unipolar case. Bipolar offset error adjust-
ment is achieved by applying an input voltage of –0.5mV
(–0.5LSB) to the input in Figure 10c and adjusting the op
amp until the ADC output code flickers between 0000 0000
0000 and 1111 1111 1111. For full-scale adjustment, an
input voltage of 2.0465V (FS – 1.5LSBs) is applied to the
input and R5 is adjusted until the output code flickers
between 0111 1111 1110 and 0111 1111 1111.
1404 F10c
+
R2
10k
R4
100k
R5
4.3k
FULL-SCALE
ADJUST
R3
100k
R6
200
R1
10k
ANALOG
INPUT
±
2.048V
A1
R8
20k
OFFSET
ADJUST
R7
100k
5V
–5V
A
IN
LTC1404
Figure 10c. LTC1404 Bipolar Offset and Full-Scale Adjust Circuit
Figure 9. LTC1404 Bipolar Transfer Characteristics
INPUT VOLTAGE (V)
0V
O
–1
LSB
1404 F09
011...111
011...110
000...001
000...000
100...000
100...001
111...110
1
LSB
BIPOLAR
ZERO
111...111
FS/2 – 1LSB
–FS/2
1404 F10a
+
R2
10k
R3
10k
R1
50
R4
100
FULL-SCALE
ADJUST
V
IN
A1
LTC1404
A
IN
GND
ADDITIONAL PINS OMITTED FOR CLARITY
±
20LSB TRIM RANGE
Figure 10a. LTC1404 Full-Scale Adjust Circuit
相關(guān)PDF資料
PDF描述
LTC1405 12-Bit, 5Msps, Sampling ADC(12位, 5Msps,采樣模數(shù)轉(zhuǎn)換器)
LTC1406 Low Power, 8-Bit, 20Msps, Sampling A/D Converter(低功耗,12位, 20Msps,采樣模數(shù)轉(zhuǎn)換器)
LTC1409 12-Bit, 800ksps Sampling A/D Converter with Shutdown(12位, 800ksps,采樣模數(shù)轉(zhuǎn)換器(帶關(guān)斷))
LTC1412 12-Bit, 3Msps, Sampling A/D Converter
LTC1412C 12-Bit, 3Msps, Sampling A/D Converter
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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LTC1404CS8PBF 制造商:Linear Technology 功能描述:ADC,LTC1404 12bit 600kSPS SOIC