LTC2498IUHF#PBF Linear Technology, LTC2498IUHF#PBF Datasheet - Page 9

• Manufacturer Part Number: LTC2498IUHF#PBF
• Description: IC ADC 24BIT 16CH 38-QFN
• Manufacturer: Linear Technology

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

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