LTC2494IUHF#PBF Linear Technology, LTC2494IUHF#PBF Datasheet - Page 9

• 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

typical perForMance characteristics
250
200
150
100
1.0
0.8
0.4
0.2
0.6
–1
–2
–3
50
3
2
1
0
–1.25
0
0
0
2
Integral Nonlinearity (2x Speed
Mode; V
RMS Noise vs V
(2x Speed Mode)
Offset Error vs V
(2x Speed Mode)
V
V
V
f
V
V
V
f
T
V
V
V
f
T
GAIN = 128
O
O
O
A
A
CC
REF
IN(CM)
CC
IN
IN(CM)
REF
IN
IN(CM)
= GND
= GND
= GND
= 25°C
= 25°C
= 0V
= 0V
2.5
= 5V
= 5V
–0.75
= 2.5V
= 2.5V
1
= GND
= 1.25V
= GND
–45°C, 25°C
CC
85°C
3
INPUT VOLTAGE (V)
= 5V, V
–0.25
2
3.5
V
V
REF
CC
REF
CC
(V)
REF
(V)
0.25
4
3
= 2.5V)
4.5
0.75
4
5
2494 G28
2494 G34
2494 G31
1.25
5.5
5
200
198
196
194
192
190
188
186
184
182
180
200
180
160
240
230
220
210
190
170
–1
–2
–3
3
2
1
0
–1.25
–1
0
Integral Nonlinearity (2x Speed
Mode; V
Offset Error vs V
(2x Speed Mode)
Offset Error vs V
(2x Speed Mode)
V
V
V
f
V
V
V
f
T
V
V
V
f
T
O
O
O
A
CC
REF
IN
A
CC
REF
IN(CM)
CC
IN
IN(CM)
= GND
= GND
= GND
= 25°C
= 25°C
= 0V
= 0V
–45°C, 25°C
= 2.7V
= 5V
= 5V
0
–0.75
= 5V
= 2.5V
85°C
1
= 1.25V
= GND
CC
1
INPUT VOLTAGE (V)
= 2.7V, V
–0.25
V
2
IN(CM)
2
V
REF
IN(CM)
REF
(V)
0.25
(V)
3
REF
3
= 2.5V)
4
0.75
4
5
2494 G29
2494 G32
2494 G35
1.25
6
5
–100
–120
–140
220
210
190
180
160
–20
–40
–60
–80
240
230
200
170
16
14
12
10
0
0
8
6
4
2
–45
179
1
Noise Histogram
(2x Speed Mode)
Offset Error vs Temperature
(2x Speed Mode)
PSRR vs Frequency at V
(2x Speed Mode)
10,000 CONSECUTIVE
READINGS
V
V
V
GAIN = 128
T
V
REF
REF
IN
IN
f
T
V
V
V
V
f
O
O
A
CC
REF
IN
CC
A
CC
REF
IN
IN(CM)
–30
+
–
= GND
= GND
= 25°C
= 25°C
= 0V
= 0V
+
–
= GND
= GND
= 5V
= 4.1V DC
= 5V
10
= 5V
= 5V
= 2.5V
= GND
–15
181.4
= GND
FREQUENCY AT V
OUTPUT READING (µV)
TEMPERATURE (°C)
100
0
15
183.8
LTC2494
1k
30
AVERAGE = 0.184mV
RMS = 0.85µV
CC
10k
45
(Hz)
186.2
CC
60
100k
75
2494 G33
2494 G36
2494 G30
2494fd

188.6
1M
90