ADS-118MM-C Murata, ADS-118MM-C Datasheet

ADS-118MM-C

Manufacturer Part Number

ADS-118MM-C

Description

buffers. 1v input range, no pipeline delay, -55 c to +125 c temperature range, rohs compliant....

Manufacturer

Murata

Datasheet

1.ADS-118MM.pdf (8 pages)

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FEATURES

■

DATEL

BLOCK DIAGRAM

12-bit resolution

5MHz minimum sampling rate

Functionally complete

Small 24-pin DDIP

Requires only ±5V supplies

Low-power, 1.8 Watts

Outstanding dynamic performance

No missing codes over full military temperature

range

Edge-triggered, no pipeline delay

Ideal for both time and frequency-domain

applications

START CONVERT 16

OFFSET ADJUST 17

(ADS-118A only)

ANALOG INPUT 19

EOC 15

+5V ANALOG

SUPPLY

CONTROL LOGIC

–

S/H

TIMING AND

• 11 Cabot Boulevard, Mansﬁ eld, MA 02048-1151 USA • Tel: (508) 339-3000 • www.datel.com • e-mail: help@datel.com

+5V DIGITAL

SUPPLY

5MHz, sampling A/D converters packaged in

space-saving 24-pin DDIP’s. The ADS-118 offers

an input range of ±1V and has three-state outputs.

The ADS-118A has an input range of ±1.25V and

features direct adjustment of offset error.

(1.8 Watts) contain an internal fast-settling sample/

hold ampliﬁ er, a 12-bit subranging A/D converter,

a precise voltage reference, timing/control logic,

PRODUCT OVERVIEW

Figure 1. ADS-118/118A Functional Block Diagram

AMP

DATEL's ADS-118 and ADS-118A are 12-bit,

These functionally complete low-power devices

BUFFER

REF

GROUND

DIGITAL

FLASH

ADC

DAC

ADC

–5V SUPPLY

12-Bit, 5MHz, Low-Power Sampling A/D Converters

GROUND

ANALOG

18, 23

* ADS-118, Pin 17 is ENABLE

ADS-118, ADS-118A

and error-correction circuitry. All timing and control

logic operates from the rising edge of a single start

convert pulse. Digital input and output levels are

TTL. Models are available for use in either com-

mercial (0 to +70°C) or military (–55 to +125°C)

operating temperature ranges.

analysis, process control, medical/graphic imaging,

and FFT spectrum analysis.

ADS-118A, Pin 17 is OFFSET ADJUST

FUNCTION

BIT 12 (LSB)

BIT 11

BIT 10

BIT 9

BIT 8

BIT 7

BIT 6

BIT 5

BIT 4

BIT 3

BIT 2

BIT 1 (MSB)

Applications include radar, transient signal

NO CONNECT

22, 24

INPUT/OUTPUT CONNECTIONS

31 Mar 2011 ADS-118.B03 Page 1 of 8

17 ENABLE

12 BIT 1 (MSB)

11 BIT 2

10 BIT 3

17*

(ADS-118A only)

BIT 4

BIT 5

BIT 6

BIT 7

BIT 9

BIT 10

BIT 11

BIT 12 (LSB)

FUNCTION

NO CONNECTION

ANALOG GROUND

NO CONNECTION

+5V ANALOG SUPPLY

–5V SUPPLY

ANALOG INPUT

ANALOG GROUND

ENABLE/OFFSET ADJ.

START CONVERT

EOC

DIGITAL GROUND

+5V DIGITAL SUPPLY

Related parts for ADS-118MM-C

ADS-118MM-C Summary of contents

Page 1

... A/D converters packaged in space-saving 24-pin DDIP’s. The ADS-118 offers an input range of ±1V and has three-state outputs. The ADS-118A has an input range of ±1.25V and features direct adjustment of offset error. These functionally complete low-power devices (1.8 Watts) contain an internal fast-settling sample/ hold ampliﬁ ...

Page 2

... Mar 2011 ADS-118.B03 Page MAX. UNITS +70 °C +125 °C — °C/Watt — °C/Watt +150 °C MAX. UNITS — Volts Ω — — ...

Page 3

... Bypass all power supplies to ground with 4.7μF tantalum capacitors in parallel with 0.1μF ceramic capacitors. Locate the bypass capacitors as close to the unit as possible. 2. The ADS-118 achieves its speciﬁ ed accuracies without the need for external calibration. If required, the device’s small initial offset and gain DATEL ® ...

Page 4

... ADS-118; +305μV for ADS-118A). Gain adjusting is accomplished when all bits are 1’s and the LSB just changes from This transition ideally occurs when the ana- log input is at +full scale minus 1½ LSB's (+0.99927V for ADS-118; +1.249085V for ADS-118A). +15V 20kΩ ...

Page 5

... DATEL ® 12-Bit, 5MHz, Low-Power Sampling A/D Converters Figure 3. Typical Connection Diagram Figure 4. ADS-118/118A Timing Diagram • 11 Cabot Boulevard, Mansﬁ eld, MA 02048-1151 USA • Tel: (508) 339-3000 • www.datel.com • e-mail: help@datel.com ADS-118, ADS-118A 31 Mar 2011 ADS-118.B03 Page ...

Page 6

... MHz MHz • 11 Cabot Boulevard, Mansﬁ eld, MA 02048-1151 USA • Tel: (508) 339-3000 • www.datel.com • e-mail: help@datel.com ADS-118, ADS-118A +0.67 0 –0.47 0 Digital Output Code 0 Digital Output Code Figure 6. ADS-118 Histogram and Differential Nonlinearity 31 Mar 2011 ADS-118.B03 Page 4096 4096 ...

Page 7

... DATEL ® 12-Bit, 5MHz, Low-Power Sampling A/D Converters • 11 Cabot Boulevard, Mansﬁ eld, MA 02048-1151 USA • Tel: (508) 339-3000 • www.datel.com • e-mail: help@datel.com ADS-118, ADS-118A 31 Mar 2011 ADS-118.B03 Page ...

Page 8

... TYP. (0.508) (0.254) ACCESSORIES Evaluation Board (without ADS-118) Heat Sink for all ADS-118 DDIP models . makes no representation that the use of its products in the circuits described herein, or the use of other 31 Mar 2011 ADS-118.B03 Page ...

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