 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
LTC1609 Datasheet(PDF) 7 Page - Linear Technology |
|
||||||||||||||||||||||||||||||
LTC1609 Datasheet(HTML) 7 Page - Linear Technology |
|
|
7 / 24 page  7 LTC1609 1609fa R1IN (Pin 1/Pin 1): Analog Input. See Table 1 and Figure 1 for input range connections. AGND1 (Pin 2/Pin 2): Analog Ground. Tie to analog ground plane. R2IN (Pin 3/Pin 3): Analog Input. See Table 1 and Figure 1 for input range connections. R3IN (Pin 4/Pin 4): Analog Input. See Table 1 and Figure 1 for input range connections. NC (28-Pin SSOP Only—Pins 5, 8, 10, 11, 18, 20, 22, 23): No Connect. CAP (Pin 5/Pin 6): Reference Buffer Output. Bypass with 2.2 µF tantalum capacitor. REF (Pin 6/Pin 7): 2.5V Reference Output. Bypass with 2.2 µF tantalum capacitor. Can be driven with an external reference. AGND2 (Pin 7/Pin 9): Analog Ground. Tie to analog ground plane. SB/BTC (Pin 8/Pin 12): Select straight binary or two’s complement data output format. Tie pin high for straight binary or tie low for two’s complement format. EXT/INT (Pin 9/Pin 13): Select external or internal clock for shifting out the output data. Tie the pin high to synchronize the output data to the clock that is applied to the DATACLK pin. If the pin is tied low, a convert command will start transmitting the output data from the previous conversion synchronized to 16 clock pulses that are outputted on the DATACLK pin. DGND (Pin 10/Pin 14): Digital Ground. SYNC (Pin 11/Pin 15): Sync Output. If EXT/INT is high, either a rising edge on R/C with CS low or a falling edge on CS with R/C high will output a pulse on SYNC synchro- nized to the external clock applied on the DATACLK pin. DATACLK (Pin 12/Pin 16): Either an input or an output depending on the level set on EXT/INT. The output data is synchronized to this clock. When EXT/INT is high an external shift clock is applied to this pin. If EXT/INT is taken PIN FUNCTIONS low, 16 clock pulses are output during each conversion. The pin will stay low between conversions. DATA (Pin 13/Pin 17): Serial Data Output. The output data is synchronized to the DATACLK and the format is deter- mined by SB/BTC. In the external shift clock mode, after 16 bits of data have been shifted out and CS is low and R/C is high, the level in the TAG pin will be outputted. This can be used to daisy-chain the serial data output from several LTC1609s. If EXT/INT is low, the output data is valid on both the rising and falling edge of the internal shift clock which is outputted on DATACLK. In between conversions, DATA will stay at the level of the TAG input when the conversion was started. TAG (Pin 14/Pin 19): Tag input is used in the external clock mode. If EXT/INT is high, digital inputs applied to TAG will be shifted out on DATA delayed 16 DATACLK pulses as long as CS is low and R/C is high. R/C (Pin 15/Pin 21): Read/Convert Input. With CS low, a falling edge on R/C puts the internal sample-and-hold into the hold state and starts a conversion. With CS low, a rising edge on R/C enables the serial output data. CS (Pin 16/Pin 24): Chip Select. Internally OR’d with R/C. With R/C low, a falling edge on CS will initiate a conversion. With R/C high, a falling edge on CS will enable the serial output data. BUSY (Pin 17/Pin 25): Output Shows Converter Status. It is low when a conversion is in progress. Data valid on the rising edge of BUSY. CS or R/C must be high when BUSY rises or another conversion will start without time for signal acquisition. PWRD (Pin 18/Pin 26): Power Down Input. If the pin is tied high, conversions are inhibited and power consumption is reduced (10 µA typ). Results from the previous conversion are maintained in the output shift register. VANA(Pin 19/Pin 27): 5V Analog Supply. Bypass to ground with a 0.1 µF ceramic and a 10µF tantalum capacitor. VDIG (Pin 20/Pin 28): 5V Digital Supply. Connect directly to VANA. (20-Pin SO/28-Pin SSOP) |
Similar Part No. - LTC1609_15 |
|
Similar Description - LTC1609_15 |
|
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.NET |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | 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 |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
