LTC2420IS8 Linear Technology, LTC2420IS8 Datasheet - Page 32

• Manufacturer Part Number: LTC2420IS8
• Description: IC ADC 20BIT MICROPOWER 8SOIC
• Manufacturer: Linear Technology

Specifications of LTC2420IS8

• Number Of Bits: 20
• Sampling Rate (per Second): 7.5
• Data Interface: MICROWIRE™, Serial, SPI™
• Number Of Converters: 2
• Power Dissipation (max): 1mW
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

LTC2420
Table 5. Typical Performance of the LTC2420 ADC When Used with the
LT1920 Instrumentation Amplifiers in Figure 34’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 6. Typical Performance of the LTC2420 ADC When Used with the
LT1167 Instrumentation Amplifiers in Figure 34’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.
TYPICAL APPLICATIO S
32
U
– 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
= 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
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