LTC2625 Просмотр технического описания (PDF) - Linear Technology
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LTC2625 Datasheet PDF : 18 Pages
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LTC2605/LTC2615/LTC2625
TYPICAL APPLICATION
Demonstration Circuit—LTC2428 20-Bit ADC Measures Key Performance Parameters
ADDRESS SELECTION
VCC
VCC
VCC
VCC
10k
10k
I2C
BUS
VREF
VCC
C1
0.1μF
11
CA0
10
CA1
7
CA2
9
SDA
8 SCL
6
REF
16
VCC
2
VOUT A
3
VOUT B
4
VOUT C
5
VOUT D
12
VOUT E
13
VOUT F
14
VOUT G
15
VOUT H
GND
1 U2
LTC2605CGN
C2
0.1μF
VIN
U4
LT1236ACS8-5
2
VIN
6
VOUT
GND
C6 4
0.1μF
U5
LT146 1ACS8-4
2
VIN
6
VOUT
3 SHDN
GND
C9
4
0.1μF
5V
4.096V
1
2
3 JP2
VREF
5VREF
C8 REGULATOR
1μF
16V
1
2
3 JP3
VCC
5V
VREF
C7
4.7μF
6.3V
TP11
VREF
VCC
TP12
VCC
TP13
GND
TP3
DAC A
TP4
DAC B
TP5
DAC C
TP6
DAC D
TP7
DAC E
TP8
DAC F
TP9
DAC G
TP10
DAC H
DAC OUTPUTS
VREF
R5
7.5k
C10
100pF
7
4
MUXOUT ADCIN
R8
22
3
FSSET
VCC
C4
0.1μF
28
VCC VCC
VCC
C5
0.1μF
JP1
3 ON/OFF
2
DISABLE
1 ADC
9 CH0
10 CH1
11 CH2
12 CH3
13
CH4
4-/8-CHANNEL
MUX
14 CH5
15 CH6
17 CH7
+
20-BIT
ADC
–
CSADC 23
CSMUX 20
SCK 25
CLK 19
DIN 21
SD0 24
R6
7.5k CS
SCK SPI
BUS
5 ZSSET GND GND GND GND GND GND GND
U3
1 6 16 18 22 27 28
LTC2428CG
FO 26
R7
7.5k
2605 TA01
RELATED PARTS
PART NUMBER DESCRIPTION
LTC1458/LTC1458L Quad 12-Bit Rail-to-Rail Output DACs with Added Functionality
LTC1654
Dual 14-Bit Rail-to-Rail VOUT DAC
LTC1655/LTC1655L Single 16-Bit VOUT DAC with Serial Interface in SO-8
LTC1657/LTC1657L Parrallel 5V/3V 16-Bit VOUT DAC
LTC1660/LTC1665 Octal 10-/8-Bit VOUT DAC in 16-Pin Narrow SSOP
LTC1821
Parallel 16-Bit Voltage Output DAC
LTC2600/LTC2610/ Octal 16-/14-/12-Bit VOUT DACs in 16-Lead SSOP
LTC2620
LTC2601/LTC2611/ Single 16-/14-/12-Bit VOUT DACs in 10-Lead DFN
LTC2621
LTC2602/LTC2612/ Dual 16-/14-/12-Bit VOUT DACs in 8-Lead MSOP
LTC2622
LTC2604/LTC2614/
LTC2624
LTC2606/LTC2616/
LTC2626
Quad 16-/14-/12-Bit VOUT DACs in 16-Lead SSOP
Single 16-/14-/12-Bit VOUT DACs with I2C Interface in 10-Lead DFN
COMMENTS
LTC1458: VCC = 4.5V to 5.5V, VOUT = 0V to 4.096V
LTC1458L: VCC = 2.7V to 5.5V, VOUT = 0V to 2.5V
Programmable Speed/Power, 3.5μs/750μA, 8μs/450μA
VCC = 5V(3V), Low Power, Deglitched
Low Power, Deglitched, Rail-to-Rail VOUT
VCC = 2.7V to 5.5V, Micropower, Rail-to-Rail Output
Precision 16-Bit Settling in 2μs for 10V Step
250μA per DAC, 2.5V to 5.5V Supply Range,
Rail-to-Rail Output, SPI Interface
300μA per DAC, 2.5V to 5.5V Supply Range,
Rail-to-Rail Output, SPI Interface
300μA per DAC, 2.5V to 5.5V Supply Range,
Rail-to-Rail Output, SPI Interface
250μA per DAC, 2.5V to 5.5V Supply Range,
Rail-to-Rail Output, SPI Interface
270μA per DAC, 2.7V to 5.5V Supply Range,
Rail-to-Rail Output, I2C Interface
2605fa
18 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
LT 1109 REV A • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2009
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