ADS-926ME View Datasheet(PDF) - DATEL Data Acquisition products
Part Name
Description
Manufacturer
ADS-926ME Datasheet PDF : 9 Pages
| |||
THERMAL REQUIREMENTS
All DATEL sampling A/D converters are fully characterized and speci-
fied over operating temperature (case) ranges of 0 to +70°C and –55
to +125°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 specifica-
tion tables.
These devices do not normally require heat sinks; however, standard
precautionary design and layout procedures should be used to ensure
ADS-926
14-Bit, 500kHz, Low-Power Sampling A/D Converters
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
underneath 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
10ns typ.
INTERNAL S/H
N
200ns
±25ns
Hold
610ns typ.
Acquisition Time
1390ns ±55ns
EOC
OUTPUT
DATA
10ns typ.
Conversion Time
480ns ±20ns
70ns ±10ns
Data (N – 1) Valid
Invalid
Data
35ns max.
115ns max.
Data N Valid (1885ns min.)
Notes: 1. fs = 500kHz.
2. The ADS-926 is a pulse-triggered device. Its internal operations
are triggered by both the rising and falling edges of the start
convert pulse. When sampling at 500kHz, the start pulse must be
between 175 and 225nsec wide. For lower sampling rates, wider
start pulses may be used, however, a 50nsec minimum pulse
width low must be maintained.
Figure 4. ADS-926 Timing Diagram
N+1
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA • Tel: (508) 339-3000 • www.datel.com • e-mail: help@datel.com
02 Oct 2015 MDA_ADS-926.C03.D1 Page 5 of 9
Share Link: 