LTC2488 LINER [Linear Technology], LTC2488 Datasheet - Page 28

• Manufacturer Part Number: LTC2488
• Description: 16-Bit 2-/4-Channel ?? ADC with Easy Drive Input Current Cancellation
• Manufacturer: LINER [Linear Technology]

RELATED PARTS
LTC2488
TYPICAL APPLICATION
PART NUMBER
LT1236A-5
LT1460
LT1790
LTC2400
LTC2410
LTC2411/LTC2411-1 24-Bit, No Latency ΔΣ ADCs with Differential Inputs in MSOP
LTC2413
LTC2440
LTC2442
LTC2449
LTC2480/LTC2482/
LTC2484
LTC2481/LTC2483/
LTC2485
LTC2492
LTC2496/LTC2498
LTC2449
28
5V
102k
10k TO 100k
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
DESCRIPTION
Precision Bandgap Reference, 5V
Micropower Series Reference
Micropower SOT-23 Low Dropout Reference Family
24-Bit, No Latency ΔΣ ADC in SO-8
24-Bit, No Latency ΔΣ ADC with Differential Inputs
24-Bit, No Latency ΔΣ ADC with Differential Inputs
High Speed, Low Noise 24-Bit ΔΣ ADC
24-Bit, High Speed, 4-Channel/2-Channel ΔΣ ADC with
Integrated Amplifi er
24-Bit, High Speed, 8-Channel/16-Channel ΔΣ ADC
16-Bit/24-Bit ΔΣ ADCs with Easy Drive Inputs, 600nV Noise,
Programmable Gain, and Temperature Sensor
16-Bit/24-Bit ΔΣ ADCs with Easy Drive Inputs, 600nV Noise,
I
2-Channel, 14-Channel 24-Bit ΔΣ ADC with Easy Drive Inputs
and Temperature Sensor
16-Channel/8-Channel 16-Bit/24-Bit ΔΣ ADC with Easy Drive
Inputs and SPI Interface
High Speed 16 Input, ΔΣ ADC
2
C Interface, Programmable Gain, and Temperature Sensor
0.1µF
●
FAX: [phone]
0.1µF
0.1µF
Figure 28. Easy Drive ADCs Simplify Measurement of High Impedance Sensors
+
–
C4
C3
LT1494
5V
R1
51.1k
R4
51.1k
●
R3
10k TO 100k
www.linear.com
0.1µF
5V
1k
1k
I
I
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
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 16-Bit and 24-Bit Versions
Pin Compatible with 16-Bit and 24-Bit Versions
Pin Compatible with LTC2488
Timing Compatible with LTC2492
8kHz Output Rate, Variable Speed Resolution
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
2488 F28
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 1006 • PRINTED IN USA
Noise
2488f