ADS-119MC Murata Power Solutions Inc, ADS-119MC Datasheet - Page 7

• Manufacturer Part Number: ADS-119MC
• Description: Analog To Digital Converter
• Manufacturer: Murata Power Solutions Inc

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 (TA = +25°C) production testing is
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
devices do not overheat. The ground and power planes beneath the pack-
age, 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. Electrical-
lyinsulating, 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.
In more severe ambient conditions, the package/junction temperature of a
given device can be reduced dramatically (typically 35%) by using one of
DATEL's HS Series heat sinks. See Ordering Information for the assigned
part number. See page 1-183 of the DATEL Data Acquisition Components
Catalog for more information on the HS Series. Request DATEL Applica-
tion Note AN-8, "Heat Sinks for DIP Data Converters", or contact DATEL
directly, for additional information.
–100
–110
–120
–130
–10
–20
–30
–40
–50
–60
–70
–80
–90
®
0
0
0.5
(fs = 10MHz, fin = 4.9MHz, Vin = –0.5dB, 4,096-point FFT)
1
Figure 7. ADS-119 FFT Analysis
1.5
2
Frequency (MHz)
2.5
®
• 11 Cabot Boulevard, Mansfi eld, MA 02048-1151 USA • Tel: [phone] • www.datel.com • e-mail: [e-mail]
3
3.5
4
4.5
12-Bit, 10MHz, Low-Power Sampling A/D Converters
5
quantization noise) associated with the ADS-119. 4,096 conversions were
This histogram represents the typical peak-to-peak noise (including
processed with the input to the ADS-119 tied to analog ground.
0
3000
2500
2000
1500
1000
500
Figure 8. ADS-119 Histogram and Differential Nonlinearity
0
Figure 6. ADS-119 Grounded Input Histogram
+0.73
–0.47
0
0
31 Mar 2011 MDA_ADS-119.B02 Page 7 of 9
Digital Output Code
Digital Output Code
Digital Output Code
ADS-119
4096
4096