ltc2493 Linear Technology Corporation, ltc2493 Datasheet - Page 32

• Manufacturer Part Number: ltc2493
• Description: 24-bit 2-/4-channel Delta Sigma Adc With Easy Drive Input Current Cancellation And I2c Interface
• Manufacturer: Linear Technology Corporation

relaTeD parTs
LTC2493
Typical applicaTion

PART NUMBER
LT1236A-5
LT1460
LT1790
LTC2400
LTC2410
LTC2440
LTC2442
LTC2449
LTC2480/LTC2482/
LTC2484
LTC2481/LTC2483/
LTC2485
LTC2486/LTC2488/
LTC2492
LTC2487
LTC2489
LTC2495/LTC2497/
LTC2499
LTC2496/LTC2498
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 DS ADC in SO-8
24-Bit, No Latency DS ADC with Differential Inputs
24-Bit, High Speed, Low Noise DS ADC
24-Bit, High Speed, 2-/4-Channel DS ADC with Integrated
Amplifier
24-Bit, High Speed, 8-/16-Channel DS ADC
16-Bit/24-Bit DS ADCs with Easy Drive Inputs, 600nV Noise,
Programmable Gain, and Temperature Sensor
16-Bit/24-Bit DS ADCs with Easy Drive Inputs, 600nV Noise,
I
16-Bit/24-Bit 2-/4-Channel DS ADC with Easy Drive Inputs, SPI
Interface, Programmable Gain, and Temperature Sensor
16-Bit 2-/4-Channel DS ADC with Easy Drive Inputs and
I
16-Bit 2-/4-Channel DS ADC with Easy Drive Inputs
16-Bit/24-Bit 8-/16-Channel DS ADC with Easy Drive Inputs and
I
16-Bit 8-/16-Channel DS ADC with Easy Drive Inputs and
SPI Interface
2
2
2
C Interface, Programmable Gain, and Temperature Sensor
C Interface, Temperature Sensor
C Interface, Programmable Gain, and Temperature Sensor
●
FAX: [phone]
0.1µF
Figure 37. Easy Drive ADCs Simplify Measurement of High Impedance Sensors
0.1µF
0.1µF
–
C4
C3
+
LT1494
5V
●
www.linear.com
R3
10k TO 100k
R1
51.1k
R4
51.1k
0.1µF
1k
1k
I
I
5V
IN
IN
+
–
= 0
= 0
0.1µF
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
3.5kHz Output Rate, 200nV Noise, 24.6 ENOBs
8kHz Output Rate, 200nV Noise, Simultaneous 50Hz/60Hz
Rejection
8kHz Output Rate, 200nV Noise, Simultaneous 50Hz/60Hz
Rejection
Pin Compatible 16-Bit and 24-Bit Versions
Pin Compatible 16-Bit and 24-Bit Versions
Pin-Compatible 16-Bit and 24-Bit Versions
Pin-Compatible with LTC2493/LTC2489
Pin-Compatible with LTC2487/LTC2493
Pin-Compatible 16-Bit and 24-Bit Versions
Pin-Compatible with LTC2498/LTC2449
12
13
14
10
11
RMS
8
9
7
V
REF
REF
CH0
CH1
CH2
CH3
COM
CC
Noise, 2ppm INL
LTC2493
–
+
GND
SDA
2493 F37
SCL
CA0
CA1
F
O
6
5
4
1
2
3
1.7k
 LINEAR TECHNOLOGY CORPORATION 2007
LT/CGRAFX 0407 REV A • PRINTED IN USA
2-WIRE
I
9-PIN SELECTABLE
ADDRESSES
2
C INTERFACE
= EXTERNAL OSCILLATOR
= INTERNAL OSCILLATOR
2493fa