ADS-947GE-QL-C View Datasheet(PDF) - DATEL Data Acquisition products

Part Name

Description

Manufacturer

ADS-947GE-QL-C

14-Bit, 10MHz Sampling A/D Converters

DATEL Data Acquisition products  

ADS-947

14-Bit, 10MHz Sampling A/D Converters

THERMAL REQUIREMENTS

All DATEL sampling A/D converters are fully characterized and specified over

operating temperature (case) ranges of 0 to +70°C and –40 to +100°C. All

room temperature (TA = +25°C) production testing is performed without the

use of heat sinks or forced air cooling. Thermal impedance figures for each

device are listed in their respective specification tables. These devices do not

normally require heat sinks; however, standard precautionary design and layout

procedures should be used to ensure devices do not overheat. The ground and

power planes beneath the package, as well as all pcb signal runs to and from

the device, should be as heavy as possible to help conduct heat away from the

package.

Electrically insulating, thermally conductive "pads" may be installed under-

neath the package. Devices should be soldered to boards rather than socketed,

and of course, minimal air flow over the surface can greatly help reduce the

package temperature.

START

CONVERT

INTERNAL S/H

N

N+1

20ns

typ.

12ns typ.

Acquisition Time

Hold

69ns typ.

(66ns min., 72ns max.)

31ns

typ.

DATA

VALID

50ns

DATA N-1 VALID

40ns typ.

(±5ns)

DATA N VALID

40ns typ.

(±5ns)

OUTPUT

DATA

10ns

DATA N-1 VALID

INVALID DATA

DATA N VALID

Notes:

1. Scale is approximately 5ns per division. Sampling rate = 10MHz.

2. The start convert pulse must be between 20 and 50ns wide or between 80 and 100ns wide (when sampling at 10MHz)

to ensure proper operation. For sampling rates less than 10MHz, the start pulse can be wider than 85nsec, however a minimum

pulse width low of 15nsec should be maintained. A 10MHz clock with a 20nsec positive pulse width is used for all production testing.

3. For no latency delay and an input range of ±0.5 Volts, order ADS-947MC-31122.

Figure 4. ADS-947 Timing Diagram

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

MDA_ADS-947.D01 Page 5 of 9

Share Link: