LTC2442
32
2442fb
For more information www.linear.com/LTC2442
PART NUMBER DESCRIPTION COMMENTS
LT1025 Micropower Thermocouple Cold Junction Compensator 80µA Supply Current, 0.5°C Initial Accuracy
LTC1043 Dual Precision Instrumentation Switched Capacitor Building
Block
Precise Charge, Balanced Switching, Low Power
LTC2050 Precision Chopper Stabilized Op Amp No External Components 3µV Offset, 1.5µV
P-P
Noise
LT1236A-5 Precision Bandgap Reference, 5V 0.05% Max, 5ppm/°C Drift
LT1461 Micropower Series Reference, 2.5V 0.04% Max, 3ppm/°C Max Drift
LT1592 Ultraprecise 16-Bit SoftSpan
TM
DAC Six Programmable Output Ranges
LTC1799 Resistor Set SOT-23 Oscillator Single Resistor Frequency Set
LTC1983 100mA Charge Pump 5V to Regulated –5V Conversion
LTC2053 Rail-to-Rail Instrumentation Amplifier 10µV Offset with 50nV/°C Drift, 2.5µV
P-P
Noise 0.01Hz to 10Hz
LTC2440 1-Channel, Differential Input, High Speed/Low Noise,
24-Bit, No Latency DS ADC
2µV
RMS
Noise at 880Hz, 200nV
RMS
Noise at 6.9Hz,
0.0005% INL, Up to 3.5kHz Output Rate
Scaling Inputs for ±10V Range
30
29 21
31
7
8
6
9
28
11
13
12
17
18
12
10
13
2
1
5
3
6
35
2
2
6
6
5
5
1
3
4
1
33
2
4
36
34
3
26
27
25
19
14
15
4
4 5 32 24
REF
+
REF
–
CH0
CH1
CH2
CH3
COM
ADCINB
ADCINA
OUTA
–INA
OUTB
–INB
CS
SCK
SD0
SDI
BUSY
F
O
EXT
MUXOUTA
MUXOUTB
+INA
+INB
LTC2442
U1
GND GND GND V
–
V
CC
V
+
IN
GND
OUT
TRIM
–
+
2.5V 5V
0.1µF
C13
0.1µF
C8
X0
X1
Y0
Y1
Z0
Z1
INH
X
Y
Z
SDI
CS
SCK
A
B
C
V
CC
V
EE
GND
11
10
9
5V
SDO
5k
R21
1.8k
R22
74HC4053
U4
–2.5V
–2.5V
–2.5V
5V
–2.5V
2.5V
–5V
4.7µF
C15
C14
0.1µF
0.1µF
C17
0.1µF
C9
C10
0.1µF
1Ω
R20
R1
40k
5k
R3
5k
R4
R5
8.88k
R10
7.5k
R9
10k
30k
R6
5V
5V
IN2
IN1
–5V
LTC2050HV
U2
LT1236-5
U3
REF
REF
+
–2.5V
–2.5V
MMBT3904
TYPICAL APPLICATION
RELATED PARTS
LINEAR TECHNOLOGY CORPORATION 2005
LT 0117 REV B • PRINTED IN USA
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
l
FAX: (408) 434-0507
l
www.linear.com/LTC2442
