ADS7812UG4 datasheet(7/25 Pages) TI1

tên linh kiện	ADS7812UG4

Giải thích chi tiết về linh kiện	Low-Power, Serial 12-Bit Sampling ANALOG-TO-DIGITAL CONVERTER

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nhà sản xuất	TI1 [Texas Instruments]

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ADS7812

7

SBAS042A

www.ti.com

1

2

3

4

5

6

7

8

R1

IN

GND

R2

IN

R3

IN

BUF

CAP

REF

GND

V

S

PWRD

BUSY

CS

CONV

EXT/INT

DATA

DATACLK

16

15

14

13

12

11

10

9

ADS7812

±10V

+5V

C

3

1µF

C

4

0.01µF

C

1

0.1µF

C

2

10µF

C

5

1µF

+

Convert Pulse

40ns min

+

Frame Sync (optional)

BASIC OPERATION

INTERNAL DATACLK

Figure 1a shows a basic circuit to operate the ADS7812 with

a

±10V input range. To begin a conversion and serial

transmission of the results from the previous conversion, a

falling edge must be provided to the CONV input. BUSY

will go LOW indicating that a conversion has started and

will stay LOW until the conversion is complete. During the

conversion, the results of the previous conversion will be

transmitted via DATA while DATACLK provides the syn-

chronous clock for the serial data. The data format is 12-bit,

Binary Two’s Complement, and MSB first. Each data bit is

valid on both the rising and falling edge of DATACLK.

BUSY is LOW during the entire serial transmission and can

be used as a frame synchronization signal.

EXTERNAL DATACLK

Figure 1b shows a basic circuit to operate the ADS7812 with

a

±10V input range. To begin a conversion, a falling edge

must be provided to the CONV input. BUSY will go LOW

indicating that a conversion has started and will stay LOW

until the conversion is complete. Just prior to BUSY rising

near the end of the conversion, the internal working register

holding the conversion result will be transferred to the

internal shift register.

The internal shift register is clocked via the DATACLK

input. The recommended method of reading the conversion

result is to provide the serial clock after the conversion has

completed. See External DATACLK under the Reading

Data section of this data sheet for more information.

FIGURE 1a. Basic Operation,

±10V Input Range, Internal DATACLK.

FIGURE 1b. Basic Operation,

±10V Input Range, External DATACLK.

1

2

3

4

5

6

7

8

R1

IN

GND

R2

IN

R3

IN

BUF

CAP

REF

GND

V

S

PWRD

BUSY

CS

CONV

EXT/INT

DATA

DATACLK

16

15

14

13

12

11

10

9

ADS7812

±10V

NOTE: (1) Tie CS to GND if the outputs will always be active.

+5V

C

1

0.1µF

C

2

10µF

C

5

1µF

+

Convert Pulse

40ns min

+

Interrupt (optional)

External Clock

Chip Select (optional(1))

C

3

1µF

C

4

0.01µF

+

Số phần tương tự - ADS7812UG4

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Burr-Brown (TI)	ADS7812U	381Kb / 17P	Low-Power, Serial 12-Bit Sampling ANALOG-TO-DIGITAL CONVERTER
Texas Instruments	ADS7812U	1Mb / 25P	[Old version datasheet] Low-Power, Serial 12-Bit Sampling ANALOG-TO-DIGITAL CONVERTER
Burr-Brown (TI)	ADS7812UB	381Kb / 17P	Low-Power, Serial 12-Bit Sampling ANALOG-TO-DIGITAL CONVERTER
Texas Instruments	ADS7812UB	1Mb / 25P	[Old version datasheet] Low-Power, Serial 12-Bit Sampling ANALOG-TO-DIGITAL CONVERTER
Texas Instruments	ADS7812UB/1K	1Mb / 25P	[Old version datasheet] Low-Power, Serial 12-Bit Sampling ANALOG-TO-DIGITAL CONVERTER

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Mô tả tương tự - ADS7812UG4

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Burr-Brown (TI)	ADS7812	381Kb / 17P	Low-Power, Serial 12-Bit Sampling ANALOG-TO-DIGITAL CONVERTER
Texas Instruments	ADS7812	1Mb / 25P	[Old version datasheet] Low-Power, Serial 12-Bit Sampling ANALOG-TO-DIGITAL CONVERTER
Sipex Corporation	SP8531	254Kb / 16P	12-Bit Sampling Serial Out Analog to Digital Converter
Texas Instruments	ADS7813	1Mb / 25P	[Old version datasheet] Low-Power, Serial 16-Bit Sampling ANALOG-TO-DIGITAL CONVERTER
Texas Instruments	ADS7813	1,007Kb / 25P	[Old version datasheet] Low-Power, Serial 16-Bit Sampling ANALOG-TO-DIGITAL CONVERTER
Burr-Brown (TI)	ADS7813	376Kb / 17P	Low-Power, Serial 16-Bit Sampling ANALOG-TO-DIGITAL CONVERTER
Texas Instruments	ADS7806	1Mb / 25P	[Old version datasheet] Low-Power 12-Bit Sampling CMOS ANALOG-to-DIGITAL CONVERTER
Burr-Brown (TI)	ADS7808	251Kb / 10P	12-Bit 10ms Serial CMOS Sampling ANALOG-to-DIGITAL CONVERTER
	ADS7808	329Kb / 13P	12-Bit 10us Serial CMOS Sampling ANALOG-to-DIGITAL CONVERTER
	ADS7806	209Kb / 18P	Low-Power 12-Bit Sampling CMOS ANALOG-to-DIGITAL CONVERTER

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