
LTC2498
12
2498ff
test circuits
1.69k
SDO
2498 TC01
Hi-Z TO VOH
VOL TO VOH
VOH TO Hi-Z
CLOAD = 20pF
1.69k
SDO
2498 TC02
Hi-Z TO VOL
VOH TO VOL
VOL TO Hi-Z
CLOAD = 20pF
VCC
Figure 1. Functional Block Diagram
AUTOCALIBRATION
AND CONTROL
DIFFERENTIAL
3RD ORDER
ΔΣ MODULATOR
DECIMATING FIR
ADDRESS
INTERNAL
OSCILLATOR
SERIAL
INTERFACE
GND
VCC
CH0
CH1
CH15
COM
MUX
MUXOUTP
MUXOUTN
ADCINP
ADCINN
SDO
SCK
REF+
REF–
CS
SDI
fO
(INT/EXT)
2498 BD
+
–
TEMP
SENSOR
Functional block DiagraM