LTC2420I LINER [Linear Technology], LTC2420I Datasheet - Page 11

• Manufacturer Part Number: LTC2420I
• Description: 20-Bit uPower No Latency ADC in SO-8
• Manufacturer: LINER [Linear Technology]

APPLICATIO S I FOR ATIO
Table 3. Typical Performance of the LTC2420 ADC When Used with the
LT1920 Instrumentation Amplifiers in Figure 9’s Differential Digitizing Circuit
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.
Table 4. Typical Performance of the LTC2420 ADC When Used with the
LT1167 Instrumentation Amplifiers in Figure 9’s Differential Digitizing Circuit
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.
U
U
W
– 30 to 400
– 30 to 400
2/–1.5**
2/–1.5**
A
A
0.18*
–160
V
V
1.8*
0.2*
17.2
1.4*
21.4
18.2
–94
21
8.2
4.1
= 10
= 10
V
V
S
S
U
= 5V
= 5V
2.2/–1.7**
2.2/–1.7**
A
A
– 3 to 40
– 3 to 40
– 2650
– 1590
V
V
0.25*
0.03*
0.19*
0.02*
20.6
17.3
21.0
18.1
= 100
= 100
7.4
4.4
2.0
0.5
120
120
11.5/–11**
11.5/–11**
– 30 to 500
– 30 to 500
A
A
– 213
0.19*
– 110
0.19*
V
V
1.5*
21.3
17.5
1.5*
21.3
18.2
6.5
4.1
= 10
= 10
V
V
S
S
= 15V
= 15V
11.7/–11.2**
11.7/–11.2**
A
A
– 3 to 50
– 3 to 50
– 2625
– 1470
V
V
0.27*
0.03*
0.18*
0.02*
20.5
18.2
21.1
19.4
= 100
= 100
6.1
3.7
LTC2420
TOTAL (UNITS)
TOTAL (UNITS)
ppm
ppm
V
V
V
V
Bits
Bits
Bits
Bits
mV
mV
nA
dB
nA
dB
RMS
RMS
V
RMS
RMS
V
V
V
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