參數(shù)資料
型號(hào): LTC2420
廠商: Linear Technology Corporation
英文描述: Micropower 20-bit ADC(微功耗,20位串行模數(shù)轉(zhuǎn)換器)
中文描述: 微功耗20位ADC(微功耗,20位串行模數(shù)轉(zhuǎn)換器)
文件頁(yè)數(shù): 32/36頁(yè)
文件大?。?/td> 388K
代理商: LTC2420
32
LTC2420
Table 6. Typical Performance of the LTC2420 ADC When Used with the
LT1167 Instrumentation Amplifiers in Figure 34’s Differential Digitizing Circuit
V
S
=
±
5V
V
S
=
±
15V
PARAMETER
Differential Input Voltage Range
Zero Error
Maximum Input Current
Nonlinearity
Noise (Without Averaging)
Noise (Averaged 64 Readings)
Resolution (with Averaged Readings)
Overall Accuracy (Uncalibrated)
Common Mode Rejection Ratio
Common Mode Range
*Input referred noise for the respective gain. **Typical values based on single lab tested sample of each amplifier.
A
V
= 10
–30 to 400
–94
A
V
= 100
–3 to 40
–1590
A
V
= 10
–30 to 500
–110
A
V
= 100
–3 to 50
–1470
TOTAL (UNITS)
mV
μ
V
nA
ppm
μ
V
RMS
μ
V
RMS
Bits
Bits
dB
V
0.5
±
4.4
0.19*
0.02*
21.0
18.1
120
2.2/–1.7**
±
4.1
1.4*
0.18*
21.4
18.2
±
4.1
1.5*
0.19*
21.3
18.2
±
3.7
0.18*
0.02*
21.1
19.4
2/–1.5**
11.5/–11**
11.7/–11.2**
TYPICAL APPLICATIO S
Table 5. Typical Performance of the LTC2420 ADC When Used with the
LT1920 Instrumentation Amplifiers in Figure 34’s Differential Digitizing Circuit
V
S
=
±
5V
V
S
=
±
15V
PARAMETER
Differential Input Voltage Range
Zero Error
Maximum Input Current
Nonlinearity
Noise (Without Averaging)
Noise (Averaged 64 Readings)
Resolution (with Averaged Readings)
Overall Accuracy (Uncalibrated)
Common Mode Rejection Ratio
Common Mode Range
*Input referred noise for the respective gain. **Typical values based on single lab tested sample of each amplifier.
A
V
= 10
–30 to 400
–160
A
V
= 100
–3 to 40
–2650
A
V
= 10
–30 to 500
–213
A
V
= 100
–3 to 50
–2625
TOTAL (UNITS)
mV
μ
V
nA
ppm
μ
V
RMS
μ
V
RMS
Bits
Bits
dB
V
2.0
±
7.4
0.25*
0.03*
20.6
17.3
120
2.2/–1.7**
±
8.2
1.8*
0.2*
21
17.2
±
6.5
1.5*
0.19*
21.3
17.5
±
6.1
0.27*
0.03*
20.5
18.2
2/–1.5**
11.5/–11**
11.7/–11.2**
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