ADS-929MM-C Murata, ADS-929MM-C Datasheet - Page 5

• Manufacturer Part Number: ADS-929MM-C
• Description: to digital (a/d) converter, 5v input range, -55 c to +125 c temperature range, rohs compliant....
• Manufacturer: Murata

DATEL
THERMAL REQUIREMENTS
All DATEL sampling A/D converters are fully characterized and speci-
fi ed over operating temperature (case) ranges of 0 to +70°C and –55
to +125°C. All room-temperature (T
performed without the use of heat sinks or forced-air cooling. Thermal
impedance fi gures for each device are listed in their respective specifi ca-
tion tables.
These devices do not normally require heat sinks; however, standard
precautionary design and layout procedures should be used to ensure
®
A
INTERNAL S/H
= +25°C) production testing is
CONVERT
OUTPUT
START
Notes: 1. f
DATA
EOC
®
• 11 Cabot Boulevard, Mansfi eld, MA 02048-1151 USA • Tel: [phone] • www.datel.com • e-mail: [e-mail]
2. The ADS-929 is an edge-triggered device. All internal operations
lower sampling rates, wider start pulses may be used, however, a
are triggered by the rising edge of the start convert pulse, which
may be as narrow as 20nsec. All production testing is performed
at a 2MHz sampling rate with 200nsec wide start pulses. For
minimum pulse width low of 20nsec must be maintained.
s
Data (N – 1) Valid
= 2MHz.
200ns
310ns typ.
typ.
Figure 4. ADS-929 Timing Diagram
N
Hold
30ns typ.
10ns typ.
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 fl ow over the surface can greatly help
reduce the package temperature.
14-Bit, 2MHz, Low-Power Sampling A/D Converters
70ns ±10ns
Data N Valid
Conversion Time
425ns min.
N + 1
35ns max.
75ns max.
360ns ±20ns
Acquisition Time
190ns
±40ns
Invalid
Data
01 Apr 2011 MDA_ADS-929.B03 Page 5 of 8
ADS-929