Electronic Components Datasheet Search |
|
MAT04EY Datasheet(PDF) 6 Page - Analog Devices |
|
MAT04EY Datasheet(HTML) 6 Page - Analog Devices |
6 / 12 page REV. D MAT04 –6– TPC 11. Collector-to-Base Capacitance vs. Collector-to- Base Voltage TPC 12. Collector-to-Substrate Capacitance vs. Collector-to- Substrate Voltage TPC 10. Total Noise vs. Collector Current APPLICATION NOTES It is recommended that one of the substrate pins (Pins 4 and 11) be tied to the most negative circuit potential to minimize cou- pling between devices. Pins 4 and 11 are internally connected. APPLICATIONS CURRENT SOURCES The MAT04 can be used to implement a variety of high imped- ance current mirrors as shown in Figures 1, 2, and 3. These current mirrors can be used as biasing elements and load de- vices for amplifier stages. Figure 1. Unity Gain Current Mirror, IOUT = IREF The unity-gain current mirror of Figure 1 has an accuracy of better than 1% and an output impedance of over 100 M Ω at 100 µA. Figures 2 and 3 show modified current mirrors de- signed for a current gain of two, and one-half respectively. The accuracy of these mirrors is reduced from that of the unity-gain source due to base current errors but is still better than 2%. Figure 2. Current Mirror, IOUT = 2(lREF) Figure 3. Current Mirror, IOUT = 1/2(IREF) Figure 4 is a temperature independent current sink that has an accuracy of better than 1% at an output current of 100 µA to 1 mA. The Schottky diode acts as a clamp to ensure correct cir- cuit start-up at power on. The resistors used in this circuit should be 1% metal-film type. |
Similar Part No. - MAT04EY |
|
Similar Description - MAT04EY |
|
|
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 |