Datasheet

LTC2430/LTC2431
40
24301f
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
●
FAX: [phone]
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www.linear.com  LINEAR TECHNOLOGY CORPORATION 2002
LT/TP 0303 2K • PRINTED IN USA
RELATED PARTS
PART NUMBER DESCRIPTION COMMENTS
LT
®
1019 Precision Bandgap Reference, 2.5V, 5V 3ppm/°C Drift, 0.05% Max Initial Accuracy
LT1025 Micropower Thermocouple Cold Junction Compensator 80µA Supply Current, 0.5°C Initial Accuracy
LTC1050 Precision Chopper Stabilized Op Amp No External Components 5µV Offset, 1.6µV
P-P
Noise
LT1236A-5 Precision Bandgap Reference, 5V 0.05% Max Initial Accuracy, 5ppm/°C Drift
LT1460 Micropower Series Reference 0.075% Max Initial Accuracy, 10ppm/°C Max Drift
LT1790 Micropower SOT23 Low Dropout Reference Family 0.05% Max Initial Accuracy, 10ppm/°C Max Drift
LTC2400 24-Bit, No Latency ∆Σ ADC in SO-8 0.3ppm Noise, 4ppm INL, 10ppm Total Unadjusted Error, 200µA
LTC2401/LTC2402 1-/2-Channel, 24-Bit, No Latency ∆Σ ADC in MSOP 0.6ppm Noise, 4ppm INL, 10ppm Total Unadjusted Error, 200µA
LTC2404/LTC2408 4-/8-Channel, 24-Bit, No Latency ∆Σ ADC 0.3ppm Noise, 4ppm INL, 10ppm Total Unadjusted Error, 200µA
LTC2410 24-Bit, Fully Differential, No Latency ∆Σ ADC 0.16ppm Noise, 2ppm INL, 10ppm Total Unadjusted Error, 200µA
LTC2411 24-Bit, Fully Differential, No Latency ∆Σ ADC in MS10 0.29ppm Noise, 2ppm INL, 10ppm Total Unadjusted Error, 200µA
LTC2413 24-Bit, Fully Differential, No Latency ∆Σ ADC Simultaneous 50Hz and 60Hz Rejection, 800nV
RMS
Noise
LTC2414/LTC2418 8-/16-Channel 24-Bit Differential, No Latency ∆Σ ADC 0.2ppm Noise, 2ppm INL, 10ppm Total Unadjusted Error
LTC2415 24-Bit, No Latency ∆Σ ADC with 15Hz Output Rate Pin Compatible with the LTC2410
LTC2420 20-Bit, No Latency ∆Σ ADC in SO-8 1.2ppm Noise, 8ppm INL, Pin Compatible with LTC2400
LTC2421/LTC2422 1-/2-Channel, 20-Bit, No Latency ∆Σ ADC in MSOP-10 1.2ppm Noise, Low Power 2.7V to 5.5V Supply, 200µA
LTC2424/LTC2428 4-/8-Channel, 20-Bit, No Latency ∆Σ ADC 1.2ppm Noise, Pin Compatible with LTC2404/LTC2408
LTC2440 24-Bit, High Speed, Low Noise ∆Σ ADC 200nV
RMS
Noise, 4000Hz Output Rate
U
TYPICAL APPLICATIO
Figure 46. Complete 20-Bit Data Acquisition System in 0.1 inch
2
V
CC
F
O
64
12
REF
+
REF
–
SCK
IN
+
IN
–
SDO
GND
CS
ANALOG INPUT RANGE
–0.5V
REF
TO 0.5V
REF
THE LT1790 IS AVAILABLE WITH 1.25V, 2.048V, 2.5V, 3V, 3.3V, 4.096V AND 5V OUTPUTS
THE LTC2431 MAY BE POWERED BY THE LT1790 3V, 3.3V, 4.096V AND 5V VERSIONS
3-WIRE
SPI INTERFACE
0.1µF
0.1µF
LTC2431
24301 TA05
4.7µF
= INTERNAL OSC/50Hz REJECTION
= EXTERNAL CLOCK SOURCE
= INTERNAL OSC/60Hz REJECTION
V
CC
LT1790
LT1790
V
OUT
SUPPLY VOLTAGE RANGE:
(V
OUT
+ 0.25V) TO 20V
Relative Size of Components