 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
REF102SM Datasheet(PDF) 7 Page - Texas Instruments |
|
||||||||||||||||||||||||||||||
REF102SM Datasheet(HTML) 7 Page - Texas Instruments |
|
|
7 / 20 page  REF102 7 SBVS022B www.ti.com OPTIONAL NOISE REDUCTION The high-frequency noise of the REF102 is dominated by the zener diode noise. This noise can be greatly reduced by connecting a capacitor between the Noise Reduction pin and ground. The capacitor forms a low-pass filter with R6 (refer to the figure on page 1) and attenuates the high-frequency noise generated by the zener. Figure 5 shows the effect of a 1 µF noise reduction capacitor on the high-frequency noise of the REF102. R6 is typically 7kΩ so the filter has a –3dB frequency of about 22Hz. The result is a reduction in noise from about 800 µV PP to under 200µVPP. If further noise reduction is required, use the circuit in Figure 14. APPLICATIONS INFORMATION High accuracy, extremely low drift, outstanding stability, and low cost make the REF102 an ideal choice for all instrumen- tation and system reference applications. Figures 6 through 14 show a variety of useful application circuits. 6 b) Precision –10V Reference. a) Resistor Biased –10V Reference R S I L 4 REF102 2 −10V Out See SBVA008 for more detail. V+ (1.4V to 26V) 1.4mA < < 5.4mA (5V −I L) R S 2 6 4 10V OPA227 R 1 2k Ω C 1000pF 1 −10V Out −15V REF102 V+ (1.4V to 26V) FIGURE 6. –10V Reference Using a) Resistor or b) OPA227. NO C N C N = 1µF FIGURE 5. Effect of 1 µF Noise Reduction Capacitor on Broadband Noise (f–3dB = 1MHz) |
Similar Part No. - REF102SM |
|
Similar Description - REF102SM |
|
|
|
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
