 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
LTC1415IG Datasheet(PDF) 11 Page - Linear Technology |
|
||||||||||||||||||||||||||||||
LTC1415IG Datasheet(HTML) 11 Page - Linear Technology |
|
|
11 / 24 page  11 LTC1415 The following list is a summary of the op amps that are suitable for driving the LTC1415, more detailed informa- tion is available in the Linear Technology databooks and the LinearView TM CD-ROM. LT ® 1215/LT1216: Dual and quad 23MHz, 50V/ µs single supply op amps. Single 5V to ±15V supplies, 6.6mA specifications, 90ns settling to 0.5LSB. LT1223: 100MHz video current feedback amplifier. ±5V to ±15V supplies, 6mA supply current. Low distortion up to and above 400kHz. Low noise. Good for AC applica- tions. LT1227: 140MHz video current feedback amplifier. ±5V to ±15V supplies, 10mA supply current. Lowest distor- tion at frequencies above 400kHz. Low noise. Best for AC applications. LT1229/LT1230: Dual and quad 100MHz current feedback amplifiers. ±2V to ±15V supplies, 6mA supply current each amplifier. Low noise. Good AC specs. LT1360: 37MHz voltage feedback amplifier. ±5V to ±15V supplies. 3.8mA supply current. Good AC and DC specs. 70ns settling to 0.5LSB. LT1363: 50MHz, 450V/ µs op amps. ±5V to ±15V sup- plies. 6.3mA supply current. Good AC and DC specs. 60ns settling to 0.5LSB. LT1364/LT1365: Dual and quad 50MHz, 450V/ µsopamps. ±5V to ±15V supplies, 6.3mA supply current per ampli- fier. 60ns settling to 0.5LSB. Input Filtering The noise and the distortion of the input amplifier and other circuitry must be considered since they will add to the LTC1415 noise and distortion. The small-signal band- width of the sample-and-hold circuit is 20MHz. Any noise or distortion products that are present at the analog inputs will be summed over this entire bandwidth. Noisy input circuitry should be filtered prior to the analog inputs to minimize noise. A simple 1-pole RC filter is sufficient for many applications. For example Figure 7 shows a 1000pF capacitor from +AIN to ground and a 100Ω source resistor to limit the input bandwidth to 1.6MHz. The 1000pF APPLICATIONS INFORMATION LinearView is a trademark of Linear Technology Corporation. capacitor also acts as a charge reservoir for the input sample-and-hold and isolates the ADC input from sam- pling glitch sensitive circuitry. High quality capacitors and resistors should be used since these components can add distortion. NPO and silver mica type dielectric capacitors have excellent linearity. Carbon surface mount resistors can also generate distortion from self heating and from damage that may occur during soldering. Metal film surface mount resistors are much less susceptible to both problems. LTC1415 +AIN –AIN VREF REFCOMP AGND LTC1415 • F07 1 2 3 4 5 10 µF 1000pF 100 Ω ANALOG INPUT Figure 7. RC Input Filter Input Range The 4.096V input range of the LTC1415 is optimized for low noise. Most single supply op amps also perform well over this same range, allowing direct coupling to the analog inputs and eliminating the need for special transla- tion circuitry. Some applications may require other input ranges. The LTC1415 differential inputs and reference circuitry can accommodate other input ranges often with little or no additional circuitry. The following sections describe the reference and input circuitry and how they affect the input range. Internal Reference The LTC1415 has an on-chip, temperature compensated, curvature corrected, bandgap reference that is factory trimmed to 2.500V. It is connected internally to a reference amplifier and is available at VREF (Pin 3) see Figure 8a. A 2k resistor is in series with the output so that it can be easily overdriven by an external reference or other |
Similar Part No. - LTC1415IG |
|
Similar Description - LTC1415IG |
|
|
|
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 |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
