LTC2498IUHF#PBF Linear Technology, LTC2498IUHF#PBF Datasheet - Page 9
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LTC2498IUHF#PBF
Manufacturer Part Number
LTC2498IUHF#PBF
Description
IC ADC 24BIT 16CH 38-QFN
Manufacturer
Linear Technology
Datasheet
1.LTC2498CUHFPBF.pdf
(38 pages)
Specifications of LTC2498IUHF#PBF
Number Of Bits
24
Sampling Rate (per Second)
7.5
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
Number Of Elements
1
Resolution
24Bit
Architecture
Delta-Sigma
Sample Rate
0.008KSPS
Input Polarity
Bipolar
Input Type
Voltage
Rated Input Volt
±2.75V
Differential Input
Yes
Power Supply Requirement
Single
Single Supply Voltage (typ)
3.3/5V
Single Supply Voltage (min)
2.7V
Single Supply Voltage (max)
5.5V
Dual Supply Voltage (typ)
Not RequiredV
Dual Supply Voltage (min)
Not RequiredV
Dual Supply Voltage (max)
Not RequiredV
Integral Nonlinearity Error
10ppm of Vref
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
38
Package Type
QFN EP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
typical perForMance characteristics
150
250
200
100
0.2
1.0
0.8
0.6
0.4
50
–1
–2
–3
0
3
2
1
0
0
–1.25
0
2
Integral Nonlinearity (2x Speed
Mode; V
Offset Error vs V
(2x Speed Mode)
RMS Noise vs V
(2x Speed Mode)
V
V
V
f
T
V
V
V
f
T
V
V
V
f
O
O
O
A
A
REF
IN
IN(CM)
CC
REF
IN(CM)
CC
IN
IN(CM)
= GND
= GND
= GND
= 25°C
= 25°C
= 0V
= 0V
2.5
= 5V
= 5V
–0.75
= 2.5V
= 2.5V
1
= GND
= GND
= 1.25V
–45°C, 25°C
CC
90°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
2498 G34
2498 G28
2498 G31
1.25
5.5
5
200
198
196
194
192
190
188
186
184
182
180
240
230
220
210
200
190
180
160
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
CC
IN
IN(CM)
A
CC
REF
IN(CM)
= GND
= GND
= GND
= 25°C
= 25°C
= 0V
= 0V
–45°C, 25°C
= 5V
= 2.7V
= 5V
0
= 2.5V
–0.75
= 5V
90°C
1
= 1.25V
= GND
CC
1
INPUT VOLTAGE (V)
= 2.7V, V
–0.25
V
2
IN(CM)
V
2
REF
IN(CM)
REF
(V)
0.25
(V)
3
REF
3
= 2.5V)
4
0.75
4
5
2498 G32
2498 G29
2498 G35
1.25
6
5
–100
–120
–140
220
210
190
160
–20
–40
–60
–80
240
230
200
180
170
16
14
12
10
0
8
6
4
2
0
179
–45
1
Offset Error vs Temperature
(2x Speed Mode)
Noise Histogram
(2x Speed Mode)
PSRR vs Frequency at V
(2x Speed Mode)
10,000 CONSECUTIVE
READINGS
V
V
V
GAIN = 256
T
V
REF
REF
IN
IN
f
T
V
V
V
V
f
O
CC
REF
IN
A
O
CC
A
CC
REF
IN
IN(CM)
–30
+
–
= 25°C
= GND
= GND
= 25°C
= 0V
= 5V
+
–
= GND
= GND
= 0V
= 4.1V DC
= 5V
= 5V
10
= 5V
= 2.5V
= GND
–15
181.4
= GND
FREQUENCY AT V
OUTPUT READING (µV)
TEMPERATURE (°C)
100
0
15
183.8
LTC2498
1k
AVERAGE = 0.184mV
30
RMS = 0.85µV
CC
10k
45
(Hz)
186.2
CC
60
100k
75
2498 G30
2498 G33
2498 G36
2498fe
188.6
1M
90