LTC2498IUHF#PBF Linear Technology, LTC2498IUHF#PBF Datasheet - Page 12

• 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

LTC2498
Functional block DiagraM
test circuits

GND
V
CC
SDO
CH15
REF
REF
COM
CH0
CH1
+
–
Hi-Z TO V
V
V
1.69k
OL
OH
TO V
TO Hi-Z
•
•
•
OH
OH
SENSOR
TEMP
MUX
MUXOUTP
MUXOUTN
C
LOAD
2498 TC01
= 20pF
ADCINP
ADCINN
Figure 1. Functional Block Diagram
ΔΣ MODULATOR
–
DIFFERENTIAL
3RD ORDER
+
AUTOCALIBRATION
DECIMATING FIR
AND CONTROL
ADDRESS
SDO
Hi-Z TO V
V
V
OSCILLATOR
INTERFACE
OH
OL
INTERNAL
SERIAL
V
TO Hi-Z
TO V
CC
2498 BD
1.69k
C
OL
OL
LOAD
2498 TC02
= 20pF
f
(INT/EXT)
SDI
SCK
SDO
CS
O
2498fe