ltc2435-1 Linear Technology Corporation, ltc2435-1 Datasheet - Page 40

• Manufacturer Part Number: ltc2435-1
• Description: 20-bit No Latency Delta Sigma Adcs With Differential Input And Differential Reference
• Manufacturer: Linear Technology Corporation

RELATED PARTS
LTC2435/LTC2435-1
TYPICAL APPLICATIO
PART NUMBER
LT1019
LT1025
LTC1043
LTC1050
LT1236A-5
LT1460
LTC2400
LTC2401/LTC2402 1-/2-Channel, 24-Bit, No Latency ΔΣ ADCs in MSOP
LTC2404/LTC2408 4-/8-Channel, 24-Bit, No Latency ΔΣ ADCs with Differential Inputs 0.3ppm Noise, 4ppm INL, 10ppm Total Unadjusted Error, 200μA
LTC2410
LTC2411/
LTC2411-1
LTC2413
LTC2415/
LTC2415-1
LTC2414/LTC2418 8-/16-Channel 24-Bit, No Latency ΔΣ ADC
LTC2420
LTC2430/LTC2431 20-Bit, No Latency ΔΣ ADC with Differential Inputs
40
POL
5V
OPERATION (CONNECT 2.7k
RESISTORS TO 100Ω
ELIMINATE FOR 5V
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
RESISTORS)
Q4
74HC04
2.7k
5V
100Ω
DESCRIPTION
Precision Bandgap Reference, 2.5V, 5V
Micropower Thermocouple Cold Junction Compensator
Dual Precision Instrumentation Switched Capacitor
Building Block
Precision Chopper Stabilized Op Amp
Precision Bandgap Reference, 5V
Micropower Series Reference
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 in MSOP
24-Bit, No Latency ΔΣ ADC with Differential Inputs
24-Bit, No Latency ΔΣ ADC with 15Hz Output Rate
20-Bit, No Latency ΔΣ ADC in SO-8
Q5
●
2.7k
FAX: [phone]
1.5k
22Ω
Q2
22Ω
22Ω
U
100Ω
350Ω
×4
●
R1
61.9Ω
0.1%
Q1
Correlated Double Sampling Resolves 100nV
www.linear.com
1.5k
22Ω
Q3
100Ω
33Ω
DIFFERENCE
AMP
1k
1k
Q2, Q3:
Q4, Q5:
Q1:
1000pF
1000pF
SILICONIX Si9802DY
MMBD2907
MMBD3904
27k
R2
10V
499Ω
499Ω
R4
R5
COMMENTS
3ppm/°C Drift, 0.05% Max Initial Accuracy
80μA Supply Current, 0.5°C Initial Accuracy
Precise Charge, Balanced Switching, Low Power
No External Components 5μV Offset, 1.6μV
0.05% Max Initial Accuracy, 5ppm/°C Drift
0.075% Max Initial Accuracy, 10ppm/°C Max Drift,
0.3ppm Noise, 4ppm INL, 10ppm Total Unadjusted Error, 200μA
0.6ppm Noise, 4ppm INL, 10ppm Total Unadjusted Error, 200μA
800nV
1.45μV
Simultaneous 50Hz/60Hz Rejection (LTC2411-1)
Simultaneous 50Hz/60Hz Rejection, 800nV
Pin Compatible with the LTC2435/LTC2435-1
0.2ppm Noise, 2ppm INL, 3ppm Total Unadjusted Errors 200μA
1.2ppm Noise, 8ppm INL, Pin Compatible with LTC2400
2.8μV Noise, SSOP-16/MSOP Package
[phone]
3
2
2
3
+
–
–
+
RMS
RMS
LT1219
LT1219
R3 10k
R6 10k
10V
U2
10V
U1
4
4
Noise, Pin Compatible with LTC2435
7
7
Noise, 4ppm INL,
SHDN
SHDN
C4 2.2nF
C3 2.2nF
5
5
0.1μf
0.1μf
6
6
30pF
C1
0.1μF
C2
0.1μF
© LINEAR TECHNOLOGY CORPORATION 2001
5k
5k
30pF
LT 0807 REV B • PRINTED IN USA
RMS
P-P
5
6
3
4
Noise
Noise
IN
IN
REF
REF
+
–
LTC2435-1
LTC2435/
+
–
GND
5V
2435 F46
24351fb