Electronic Components Datasheet Search |
|
ADS-939MC Datasheet(PDF) 5 Page - Murata Power Solutions Inc. |
|
ADS-939MC Datasheet(HTML) 5 Page - Murata Power Solutions Inc. |
5 / 7 page THERMAL REQUIREMENTS All DATEL sampling A/D converters are fully characterized and specified 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 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 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. 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 Application Note AN-8, "Heat Sinks for DIP Data Converters," or contact DATEL directly, for additional information. Figure 3. ADS-939 Timing Diagram Scale is approximately 25ns per division. fs = 10MHz 1111 1111 1111 1111 LSB "1" to "0" 1110 0000 0000 0000 1100 0000 0000 0000 1000 0000 0000 0000 0111 1111 1111 1111 0100 0000 0000 0000 0010 0000 0000 0000 0000 0000 0000 0001 LSB "0" to "1" 0000 0000 0000 0000 +FS –1 LSB +FS –1 1/2 LSB +3/4 FS +1/2 FS 0 –1 LSB –1/2 FS –3/4 FS –FS +1 LSB –FS + 1/2 LSB –FS INPUT RANGE ±2.75V +2.749916 +2.749874 +2.062500 +1.375000 0.000000 –0.000084 –1.375000 –2.062500 –2.749916 –2.749958 –2.750000 0000 0000 0000 0000 LSB "0" to "1" 0001 1111 1111 1111 0011 1111 1111 1111 0111 1111 1111 1111 1000 000 000 0000 1011 1111 1111 1111 1101 1111 1111 1111 1111 1111 1111 1110 LSB "1" to "0" 1111 1111 1111 1111 0111 1111 1111 1111 LSB "1" to "0" 0110 0000 0000 0000 0100 0000 0000 0000 0000 0000 0000 0000 1111 1111 1111 1111 1100 0000 0000 0000 1010 0000 0000 0000 1000 0000 0000 0001 LSB "0" to "1" 1000 0000 0000 0000 1000 0000 0000 0000 LSB "0" to "1" 1001 1111 1111 1111 1011 1111 1111 1111 1111 1111 1111 1111 0000 0000 0000 0000 0011 1111 1111 1111 0101 1111 1111 1111 0111 1111 1111 1110 LSB "1" to "0" 0111 1111 1111 1111 BIPOLAR SCALE Table 2b. Output Coding 0 –1 LSB 0 –1 1/2 LSB 0 – 1/8 FS 0 – 1/4 FS –1/2 FS –1/2LSB –1/2 LSB –3/4 FS –7/8 FS –FS +1 LSB –FS + 1/2 LSB –FS INPUT RANGE 0 to –5.5V –0.000084 –0.000126 –0.687500 –1.375000 –2.749958 –2.750000 –4.125000 –4.812500 –5.499916 –5.499958 –5.500000 UNIPOLAR SCALE MSB LSB MSB LSB MSB LSB MSB LSB OFFSET BINARY COMP. OFF. BIN. TWO'S COMP. COMP. TWO'S COMP. COMP. BINARY BINARY COMP. TWO'S COMP. TWO'S COMP. START CONVERT INTERNAL S/H N N+1 EOC OUTPUT DATA N+2 N+3 5ns typ. 65ns 20ns typ. N+4 N+5 N+6 N+7 N+8 N N-1 N-2 N-3 N-4 N-5 N-6 N-7 N-8 10ns typ. 20ns typ. 50ns 35ns 60ns 40ns MDA_ADS-939.A01 Page 5 of 7 ADS-939 16-Bit, 10MHz Sampling A/D Converters Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000 www.murata-ps.com |
Similar Part No. - ADS-939MC |
|
Similar Description - ADS-939MC |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |