LTC2435-1IGN Linear Technology, LTC2435-1IGN Datasheet - Page 31

• Manufacturer Part Number: LTC2435-1IGN
• Description: IC CONV A/D 20BIT DIFF 16-SSOP
• Manufacturer: Linear Technology

Specifications of LTC2435-1IGN

• Number Of Bits: 20
• Sampling Rate (per Second): 13.75
• 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: 16-SSOP (0.150", 3.90mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

APPLICATIO S I FOR ATIO
Figure 28. – FS Error vs Output Data Rate and Temperature
Figure 32. Resolution (Noise
vs Output Data Rate and Reference Voltage
Figure 30. Resolution (INL
vs Output Data Rate and Temperature
–200
–220
–240
–260
–280
–300
–320
–340
–360
–380
–400
22
21
20
19
18
17
16
15
21
20
19
18
17
16
15
14
0
0
0
V
V
REF
F
RES = LOG
V
V
F
V
V
REF
F
T
RES = LOG
O
CC
INCM
O
INCM
CC
O
A
INCM
IN
20 40 60 80 100 120 140 160 180 200
20 40 60 80 100 120 140 160 180 200
20
= EXT OSC
= EXT OSC
OUTPUT DATA RATE (READINGS/SEC)
= EXT OSC
= 25°C
OUTPUT DATA RATE (READINGS/SEC)
OUTPUT DATA RATE (READINGS/SEC)
–
= V
= 0V
= V
–
U
= GND
= GND
= V
= V
= V
40
REF
REF
REFCM
REFCM
REFCM
2
2
= 5V
= 5V
60 80 100
(V
(V
REF
REF
U
/INL
/NOISE
T
A
MAX
= 25°C
T
V
A
RMS
CC
120 140 160 180 200
)
= 85°C
T
RMS
= V
)
A
RMS
W
V
V
= 25°C
REF
CC
REF
≤ 1LSB)
T
= 2.7V
= 5V
≤ 1LSB)
A
= 2.5V
= 85°C
2435 F30
2435 F28
2435 F32
U
Figure 33. Resolution (INL
vs Output Data Rate and Reference Voltage
Figure 29. Resolution (Noise
vs Output Data Rate and Temperature
–10
–20
–30
–40
–50
Figure 31. Offset Change* vs Output
Data Rate and Reference Voltage
22
21
20
19
18
17
16
15
50
40
30
20
10
21
20
19
18
17
16
15
14
0
0
0
0
LTC2435/LTC2435-1
* RELATIVE TO OFFSET AT
V
V
REF
F
T
RES = LOG
V
V
V
REF
F
RES = LOG
V
V
REF
F
T
O
A
O
O
INCM
IN
CC
INCM
IN
INCM
IN
A
NORMAL OUTPUT RATE
20
20
V
V
20 40 60 80 100 120 140 160 180 200
= EXT OSC
= 25°C
= EXT OSC
OUTPUT DATA RATE (READINGS/SEC)
= EXT OSC
= 25°C
OUTPUT DATA RATE (READINGS/SEC)
OUTPUT DATA RATE (READINGS/SEC)
CC
REF
= 0V
–
= 0V
–
= 0V
–
= V
= GND
= GND
= GND
= V
= 2.7V
= V
40
= V
40
= 2.5V
REF
REFCM
REFCM
REFCM
2
V
2
60 80 100
60 80 100
= 5V
(V
CC
(V
REF
REF
= V
/NOISE
/INL
REF
MAX
= 5V
V
T
V
V
RMS
A
120 140 160 180 200
CC
120 140 160 180 200
CC
REF
)
MAX
= 85°C
= V
= 2.7V
)
T
= 2.5V
A
RMS
REF
≤ 1LSB)
= 25°C
= 5V
≤ 1LSB)
2435 F29
2435 F31
2435 F33
31
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