ADS-112 datasheet(3/6 Pages) ETC

tên linh kiện	ADS-112

Giải thích chi tiết về linh kiện	12-Bit, 1MHz, Low-Power Sampling A/D Converters

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®

ADS-112

3

has an internal pull-up resistor on this pin. To obtain

complementary binary or complementary offset binary

output coding, tie pin 18 to ground. The pin 18 signal is

compatible with CMOS/TTL logic levels for those users

desiring dynamic control of this function.

5. To enable the three-state outputs, connect ENABLE (pin 17)

to a logic "0" (low). To disable, connect pin 17 to a logic "1"

(high).

6. Do not change the status of pin 18 when EOC is high.

7. Re-initiating the START CONVERT (pin 16) while EOC is a

logic "1" (high) will result in a new conversion sequence.

TIMING

Figure 2 shows the relationship between the various input

signals. The timing shown applies over the operating

temperature range and over the operating power supply

range. These times are guaranteed by design.

TECHNICAL NOTES

1. Applications which are unaffected by endpoint errors or

remove them through software will use the typical connec-

tions shown in Figure 3. Remove system errors or adjust

the small initial errors of the ADS-112 to zero using the

optional external circuitry shown in Figure 4. The external

adjustment circuit has no effect on the throughput rate.

2. For best performance, always connect the analog and

digital ground pins to a ground plane beneath the converter.

The analog and digital grounds are not connected to each

other internally.

3. Bypass the analog and digital supplies and the +10V

reference (pin 21) to ground with 4.7µF, 25V tantalum

electrolytic capacitors in parallel with 0.1µF ceramic

capacitors. Bypass the +10V reference (pin 21) to analog

ground (pin 23).

4. Obtain straight binary/offset binary output coding by tying

COMP BIN (pin 18) to +5V or leaving it open. The device

Figure 2. ADS-112 Timing Diagram

START

CONVERT

INTERNAL S/H

N

N+1

150ns, ±25ns

Acquisition Time

250ns

10ns min.

20ns max.

EOC

20ns max.

Conversion Time

600ns max.

60ns max.

Note: Scale is approximately 50ns per division.

35ns max.

OUTPUT

DATA

DATA N-1 VALID

INVALID

DATA

DATA N VALID

800ns min.

INVALID

DATA

200ns max.

Hold

Số phần tương tự - ADS-112

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Murata Power Solutions ...	ADS-112	156Kb / 6P	12-Bit, 1MHz, Low-Power Sampling A/D Converters
DATEL, Inc.	ADS-112-C/883	106Kb / 1P	Sampling A/D Converters
DATEL, Inc.	ADS-112-C883	106Kb / 1P	Sampling A/D Converters
Murata Power Solutions ...	ADS-112/883	156Kb / 6P	12-Bit, 1MHz, Low-Power Sampling A/D Converters
DATEL, Inc.	ADS-112/883	106Kb / 1P	Sampling A/D Converters

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Mô tả tương tự - ADS-112

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Murata Power Solutions ...	ADS-112	156Kb / 6P	12-Bit, 1MHz, Low-Power Sampling A/D Converters
List of Unclassifed Man...	ADS-927	150Kb / 8P	14-Bit, 1MHz, Low-Power Sampling A/D Converters
List of Unclassifed Man...	ADS-951	87Kb / 6P	18-Bit, 1MHz, Low-Power Sampling A/D Converters
Murata Power Solutions ...	ADS-951	87Kb / 6P	18-Bit, 1MHz, Low-Power Sampling A/D Converters
Murata Power Solutions ...	ADS-917	191Kb / 8P	14-Bit, 1MHz, Low-Power Sampling A/D Converters
List of Unclassifed Man...	ADS-937	194Kb / 8P	16-Bit, 1MHz, Low-Power Sampling A/D Converters
Murata Power Solutions ...	ADS-927	152Kb / 8P	14-Bit, 1MHz, Low-Power Sampling A/D Converters
C&D Technologies	ADS-941	83Kb / 6P	14-Bit, 1MHz Sampling A/D Converters
Murata Power Solutions ...	ADS-931	170Kb / 10P	16-Bit, 1MHz Sampling A/D Converters
Murata Power Solutions ...	ADS-937	740Kb / 8P	16-Bit, 1MHz Sampling A/D Converters

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