LTC2494IUHF#PBF Linear Technology, LTC2494IUHF#PBF Datasheet - Page 35

• Manufacturer Part Number: LTC2494IUHF#PBF
• Description: IC ADC 16BIT W/PGA 38-QFN
• Manufacturer: Linear Technology

Specifications of LTC2494IUHF#PBF

• Number Of Bits: 16
• Sampling Rate (per Second): 15
• Data Interface: MICROWIRE™, Serial, SPI™
• Number Of Converters: 1
• Power Dissipation (max): 480µW
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 38-WFQFN, Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

applications inForMation
Figure 34. Resolution (Noise
vs Output Data Rate and Temperature
Figure 31. Offset Error vs Output Data
Rate and Temperature
–10
18
14
10
50
40
30
20
10
16
12
0
0
0
V
V
V
f
V
V
V
f
RES = LOG 2 (V
O
O
IN(CM)
CC
IN
IN(CM)
CC
IN
10
10
= EXT CLOCK
T
= EXT CLOCK
OUTPUT DATA RATE (READINGS/SEC)
OUTPUT DATA RATE (READINGS/SEC)
A
= 0V
= 0V
= V
= V
= 25°C, 85°C
20 30
20
REF
REF
= V
= V
REF(CM)
= 5V
REF(CM)
30
= 5V
Figure 37. Resolution (Noise
vs Output Data Rate and Reference Voltage
T
T
REF
40
40
A
18
16
14
12
10
A
= 85°C
= 25°C
/NOISE
0
50
50
V
V
f
T
RES = LOG 2 (V
O
A
IN(CM)
IN
10
= EXT CLOCK
= 25°C
OUTPUT DATA RATE (READINGS/SEC)
60
= 0V
60
RMS
20 30
= V
RMS
70
70
)
REF(CM)
80
80
≤ 1LSB)
REF
V
40
90
90 100
CC
/NOISE
2494 F34
50
2494 F31
= 5V, V
100
60
RMS
REF
)
70
RMS
= 2.5V, 5V
Figure 35. Resolution (INL
vs Output Data Rate and Temperature
3500
3000
2500
2000
1500
1000
Figure 32. +FS Error vs Output Data
Rate and Temperature
80
500
18
14
10
16
12
≤ 1LSB)
0
0
90 100
0
V
V
f
RES = LOG 2 (V
V
V
f
O
O
IN(CM)
CC
IN(CM)
CC
2494 F37
10
10
= EXT CLOCK
= EXT CLOCK
OUTPUT DATA RATE (READINGS/SEC)
OUTPUT DATA RATE (READINGS/SEC)
= V
= V
20 30
20 30
REF
REF
= V
= V
REF(CM)
= 5V
REF(CM)
= 5V
REF
T
40
T
40
A
A
/INL
= 85°C
= 85°C
50
50
MAX
60
60
)
MAX
70
70
T
Figure 38. Resolution (INL
Output Data Rate and Reference Voltage
A
T
18
16
14
10
12
= 25°C
≤ 1LSB)
A
80
80
= 25°C
0
V
V
V
REF
f
T
RES = LOG 2 (V
O
CC
IN(CM)
IN
A
90 100
90 100
10
= EXT CLOCK
= 25°C
OUTPUT DATA RATE (READINGS/SEC)
= 0V
–
= 5V, V
2494 F35
2494 F32
= GND
20 30
= V
REF
REF(CM)
= 2.5V
REF
–1500
–2500
–3500
–1000
–2000
–3000
40
–500
–10
/INL
20
15
10
–5
0
5
50
Figure 36. Offset Error vs Output Data
Rate and Reference Voltage
0
MAX
0
Figure 33.–FS Error vs Output Data
Rate and Temperature
0
V
V
f
T
O
V
V
f
60
IN(CM)
IN
A
O
V
IN(CM)
CC
10
)
= EXT CLOCK
10
= 25°C
OUTPUT DATA RATE (READINGS/SEC)
CC
= EXT CLOCK
OUTPUT DATA RATE (READINGS/SEC)
= 0V
MAX
= V
70
= V
20 30
20 30
V
= V
REF
= V
CC
REF
80
≤ 1LSB) vs
REF(CM)
= 5V, V
REF(CM)
= 5V
= 5V
90 100
T
40
A
40
= 85°C
2494 F38
REF
V
LTC2494
CC
50
50
= 2.5V
= V
60
60
REF
T
A
70
70
= 5V
= 25°C
80
80

90 100
90 100
2494fd
2494 F36
2494 F33