LTC2492 Linear Technology, LTC2492 Datasheet - Page 36

• Manufacturer Part Number: LTC2492
• Description: 24-Bit 2-/4-Channel ADC
• Manufacturer: Linear Technology

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RELATED PARTS
LTC2492
TYPICAL APPLICATION
PART NUMBER
LT1236A-5
LT1460
LT1790
LTC2400
LTC2410
LTC2411/
LTC2411-1
LTC2413
LTC2440
LTC2442
LTC2449
LTC2480
LTC2481
LTC2482
LTC2483
LTC2484
LTC2485
LTC2488
LTC2496/
LTC2498
36
5V
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
102k
10k TO 100k
DESCRIPTION
Precision Bandgap Reference, 5V
Micropower Series Reference
Micropower SOT-23 Low Dropout Reference Family
24-Bit, No Latency Δ∑ ADC in SO-8
24-Bit, No Latency Δ∑ ADC with Differential Inputs
24-Bit, No Latency Δ∑ ADCs with Differential Inputs in MSOP
24-Bit, No Latency Δ∑ ADC with Differential Inputs
High Speed, Low Noise 24-Bit Δ∑ ADC
24-Bit, High Speed 2-Channel and 4-Channel Δ∑ ADC with
Integrated Amplifi er
24-Bit, High Speed 8-Channel and 16-Channel Δ∑ ADC
16-Bit Δ∑ ADC with Easy Drive Inputs, 600nV Noise,
Programmable Gain, and Temperature Sensor
16-Bit Δ∑ ADC with Easy Drive Inputs, 600nV Noise, I
Interface, Programmable Gain, and Temperature Sensor
16-Bit Δ∑ ADC with Easy Drive Inputs
16-Bit Δ∑ ADC with Easy Drive Inputs, and I
24-Bit Δ∑ ADC with Easy Drive Inputs
24-Bit Δ∑ ADC with Easy Drive Inputs, I
Temperature Sensor
2-Channel and 4-Channel 16-Bit Δ∑ ADC with Easy Drive Inputs Pin Compatible with LTC2492
16-Channel/8-Channel 16-Bit/24-Bit Δ∑ ADC with Easy Drive
Inputs, and SPI Interface
●
FAX: [phone]
0.1μF
Figure 38. Easy Drive ADCs Simplify Measurement of High Impedance Sensors
0.1μF
0.1μF
C4
C3
+
–
LT1494
5V
●
R1
51.1k
R4
51.1k
www.linear.com
R3
10k TO 100k
0.1μF
5V
1k
1k
2
I
I
IN
IN
C Interface, and
+
–
= 0
= 0
2
C Interface
0.1μF
2
C
0.1μF
10μF
5V
COMMENTS
0.05% Max Initial Accuracy, 5ppm/°C Drift
0.075% Max Initial Accuracy, 10ppm/°C Max Drift
0.05% Max Initial Accuracy, 10ppm/°C Max Drift
0.3ppm Noise, 4ppm INL, 10ppm Total Unadjusted Error, 200μA
0.8μV
1.45μV
Rejection (LTC2411-1)
Simultaneous 50Hz/60Hz Rejection, 800nV
3.5kHz Output Rate, 200nV Noise, 24.6 ENOBs
8kHz Output Rate, 220nV Noise, Simultaneous 50Hz/60Hz Rejection
8kHz Output Rate, 200nV Noise, Simultaneous 50Hz/60Hz Rejection
Pin Compatible with LTC2482/LTC2484
Pin Compatible with LTC2483/LTC2485
Pin Compatible with LTC2480/LTC2484
Pin Compatible with LTC2481/LTC2485
Pin Compatible with LTC2480/LTC2482
Pin Compatible with LTC2481/LTC2483
Timing Compatible with LTC2492
RMS
RMS
12
13
14
10
11
8
9
7
Noise, 2ppm INL
Noise, 4ppm INL, Simultaneous 50Hz/60Hz
V
REF
REF
CH0
CH1
CH2
CH3
COM
CC
LTC2492
+
–
SDO
GND
2492 F38
SCK
SDI
CS
F
O
5
6
2
3
1
4
© LINEAR TECHNOLOGY CORPORATION 2006
3-WIRE
SPI INTERFACE
= EXTERNAL OSCILLATOR
= INTERNAL OSCILLATOR
RMS
LT 1008 REV B• PRINTED IN USA
Noise
2492fb