LTC2486
36
2486fe
For more information www.linear.com/LTC2486
LINEAR TECHNOLOGY CORPORATION 2007
LT 1114 REV E • PRINTED IN USA
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com/LTC2486
RELATED PARTS
PART NUMBER DESCRIPTION COMMENTS
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 SOT-23 Low Dropout Reference Family 0.05% Max Initial Accuracy, 10ppm/°C Max Drift
LTC2400
24-Bit, No Latency ΔS ADC in SO-8
0.3ppm Noise, 4ppm INL, 10ppm Total Unadjusted Error, 200µA
LTC2410
24-Bit, No Latency ΔS ADC with Differential Inputs
0.8µV
RMS
Noise, 2ppm INL
LTC2413
24-Bit, No Latency ΔS ADC with Differential Inputs
Simultaneous 50Hz/60Hz Rejection, 800nV
RMS
Noise
LTC2440
High Speed, Low Noise 24-Bit ΔS ADC
3.5kHz Output Rate, 200nV
RMS
Noise, 24.6 ENOBs
LTC2442
24-Bit, High Speed 2-Channel and 4-Channel ΔS ADC with
Integrated Amplifier
8kHz Output Rate, 220nV
RMS
Noise, Simultaneous 50Hz/60Hz Rejection
LTC2449
24-Bit, High Speed 8-Channel and 16-Channel ΔS ADC
8kHz Output Rate, 200nV
RMS
Noise, Simultaneous 50Hz/60Hz Rejection
LTC2480
16-Bit ΔS ADC with Easy Drive Inputs, 600nV
RMS
Noise,
Programmable Gain, and Temperature Sensor
Pin Compatible with LTC2482/LTC2484
LTC2481
16-Bit ΔS ADC with Easy Drive Inputs, 600nV
RMS
Noise, I
2
C
Interface, Programmable Gain, and Temperature Sensor
Pin Compatible with LTC2483/LTC2485
LTC2482
16-Bit ΔS ADC with Easy Drive Inputs
Pin Compatible with LTC2480/LTC2484
LTC2483
16-Bit
Δ
S ADC with Easy Drive Inputs, and I
2
C Interface
Pin Compatible with LTC2481/LTC2485
LTC2484
24-Bit ΔS ADC with Easy Drive Inputs
Pin Compatible with LTC2480/LTC2482
LTC2485
24-Bit ΔS ADC with Easy Drive Inputs, I
2
C Interface, and
Temperature Sensor
Pin Compatible with LTC2481/LTC2483
LTC2488
2-Channel/4-Channel 16-Bit ΔS ADC with Easy Drive Inputs
Pin Compatible with LTC2486/LTC2492
LTC2492
2-Channel/4-Channel 24-Bit ΔS ADC with Easy Drive Inputs
Pin Compatible with LTC2486/LTC2488
LTC2494
8-Channel/16-Channel 16-Bit ΔS ADC with PGA and Easy Drive
Inputs
Pin Compatible with LTC2498/LTC2496
LTC2496/
LTC2498
16-Channel/8-Channel 16-Bit/24-Bit ΔS ADC with Easy Drive
Inputs, and SPI Interface
Timing Compatible with LTC2486
TYPICAL APPLICATION
Figure 39. Easy Drive ADCs Simplify Measurement of High Impedance Sensors
V
CC
f
O
SCK
SDI
GND
= INTERNAL OSCILLATOR
LTC2486
3-WIRE
SPI INTERFACE
2486 F39
SDO
12 1
REF
+
13
REF
–
14
CH0
8
CH1
9
CH2
10
CH3
11
COM
7
3
5
6
4
2
5V
0.1µF
10µF
CS
I
IN
+
= 0
I
IN
–
= 0
R1
51.1k
R4
51.1k
C4
0.1µF
C3
0.1µF
R3
10k TO 100k
–
+
102k
5V
5V
LT1494
0.1µF
0.1µF
0.1µF
1k
1k
10k TO 100k
