Техническая Спецификация для Linear Technology DC956A - LTC2485 24-bit Delta-Sigma ADC demo board (req DC590) DC956A DC956A
Модели
DC956A
LTC2485
40
2485fc
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2005
LT 0710 REV C • PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATION
SCL
SDA
CAO/f
O
6
7
10
18
17
16
15
14
13
12
11
28
27
26
25
24
23
22
21
17
16
15
14
13
12
11
28
27
26
25
24
23
22
21
7
6
5
4
3
2
6
5
4
3
2
V
CC
5V
LTC2485
REF
REF
–
IN
–
IN
+
3
ISOTHERMAL
2
C7
0.1μF
0.1μF
C8
1μF
1μF
C6
0.1μF
0.1μF
4
R2
2k
5
TYPE K
THERMOCOUPLE
JACK
(OMEGA MPJ-K-F)
5V
5V
3
8
9
GND
CA1
RC7
RC6
RC5
RC4
RC3
RC2
RC1
RC0
RB7
RB6
RB5
RB4
RB3
RB2
RB1
RB0
RA5
RA4
RA3
RA2
RA1
RA0
RC6
RC5
RC4
RC3
RC2
RC1
RC0
RB7
RB6
RB5
RB4
RB3
RB2
RB1
RB0
RA5
RA4
RA3
RA2
RA1
RA0
V
DD
OSC1
OSC2
MCLR
20
9
10
1
5V
5V
Y1
6MHz
R1
10k
D1
BAT54
V
SS
9
2485 F45
V
SS
19
PIC16F73
D7
D6
D5
D4
EN
D6
D5
D4
EN
RW
RS
R5
10k
10k
R4
10k
10k
R3
10k
10k
R6
5k
2
1
3
2
1
5V
CALIBRATE
CONTRAST
GND D0
V
CC
D1 D2 D3
2
s 16 CHARACTER
LCD DISPLAY
(OPTREX DMC162488
OR SIMILAR)
DOWN
UP
1.7k
1.7k
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 Δ∑ ADC in SO-8
0.3ppm Noise, 4ppm INL, 10ppm Total Unadjusted Error, 200μA
LTC2410
24-Bit, No Latency Δ∑ ADC with Differential Inputs
0.8μV
RMS
Noise, 2ppm INL
LTC2411/LTC2411-1
24-Bit, No Latency Δ∑ ADCs with Differential Inputs in MSOP
1.45μV
RMS
Noise, 4ppm INL, Simultaneous 50Hz/60Hz
Rejection (LTC2411-1)
LTC2413
24-Bit, No Latency Δ∑ ADC with Differential Inputs
Simultaneous 50Hz/60Hz Rejection, 800nV
RMS
Noise
LTC2415/LTC2415-1
24-Bit, No Latency Δ∑ ADCs with 15Hz Output Rate
Pin Compatible with the LTC2410
LTC2414/LTC2418
8-/16-Channel 24-Bit, No Latency Δ∑ ADCs
0.2ppm Noise, 2ppm INL, 3ppm Total Unadjusted Errors 200μA
LTC2440
High Speed, Low Noise 24-Bit Δ∑ ADC
3.5kHz Output Rate, 200nV Noise, 24.6 ENOBs
LTC2480
16-Bit Δ∑ ADC with Easy Drive Inputs, 600nV Noise,
Programmable Gain, and Temperature Sensor
Programmable Gain, and Temperature Sensor
Pin Compatible with LTC2482/LTC2484
LTC2481
16-Bit Δ∑ ADC with Easy Drive Inputs, 600nV Noise,
I
I
2
C Interface, Programmable Gain, and Temperature Sensor
Pin Compatible with LTC2483/LTC2485
LTC2482
16-Bit Δ∑ ADC with Easy Drive Inputs
Pin Compatible with LTC2480/LTC2484
LTC2483
16-Bit Δ∑ ADC with Easy Drive Inputs, and I
2
C Interface
Pin Compatible with LTC2481/LTC2485
LTC2484
24-Bit Δ∑ ADC with Easy Drive Inputs
Pin Compatible with LTC2480/LTC2482
Figure 45. Complete Type K Thermocouple Meter