AD8515: 1.8 V 低電力 CMOS レール to レール入力／出力オペアンプ

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しらんうすい
5 years ago
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1 REV. REVISION MT AD V CMOS to 1.8 5V 6mV SOT23 2.7V/µs 5MH to 2pA 1.8V 45µA PCMCIA PDA AD Vto SOT23-5L AD8515 5MHz 1.8V1mV to 2.7V/µs ASIC AD SOT23 RT IN +IN V+ OUT AD8515 V

2 V S = 1.8V V CM = V S /2 T A = 25 V OS V CM = V S /2 1 6 mv 4 T A mv I B V S = 1.8V 2 3 pa 4 T A pa I OS 1 1 pa 4 T A pa 1.8 V CMRR V V CM 1.8V 5 db A VO R L = 1KΩ.3V V CM 1.5V 8 4 V/mV V OS / T 4 µv/ V OH I L = 1µA 4 T A V I L = 75µA 4 T A V V OL I L = 1µA 4 T A mv I L = 75µA 4 T A mv I SC 2 ma I SY V OUT =V S / µa 4 T A µa SR R L = 1kΩ 2.7 V/µs GBP 5 MHz e n f = 1kHz 22 nv/ Hz e n f = 1kHz 2 nv/ Hz i n f = 1kHz.5 pa/ Hz

3 V S = 3.V V CM = V S /2 T A = 25 V OS V CM = V S /2 1 6 mv 4 T A mv I B V S = 3.V 2 3 pa 4 T A pa I OS 1 1 pa 4 T A pa 3 V CMRR V V CM 3.V 54 db A VO R L = 1kΩ.3V V CM 2.7V 2 1, V/mV V OS / T 4 µv/ V OH I L = 1µA 4 T A V I L = 75µA 4 T A V V OL I L = 1µA 4 T A mv I L = 75µA 4 T A mv PSRR V S = V db I SY V OUT = V S / µa 4 T A µa SR R L = 1kΩ 2.7 V/µs GBP 5 MHz e n f = 1kHz 22 nv/ Hz e n f = 1kHz 2 nv/ Hz i n f = 1kHz.5 pa/ Hz

4 V S = 5.V V CM = V S /2 T A = 25 V OS V CM = V S /2 1 6 mv 4 T A mv I B V S = 5.V 5 3 pa 4 T A pa I OS 1 1 pa 4 T A pa 5. V CMRR V V CM 5.V 6 75 db A VO R L = 1kΩ.3V V CM 4.7V 3 2, V/mV V OS / T 4 µv/ V OH I L = 1µA 4 T A V I L = 75µA 4 T A V V OL I L = 1µA 4 T A mv I L = 75µA 4 T A mv PSRR V S = V db I SY V OUT = V S / µa 4 T A µa SR R L = 1kΩ 2.7 V/µs GBP 5 MHz e n f = 1kHz 22 nv/ Hz e n f = 1kHz 2 nv/ Hz i n f = 1kHz.5 pa/ Hz

5 * V GND V S VV S GND R RT RM AD R RT RM θ JA * θ JC 5 SOT23 RT /W * θ JA * 25 AD8515ART SOT23 RT-5 BDA ESD 4,V AD8515ESD ESD WARNING! ESD SENSITIVE DEVICE

6 µ TPC TPC V OL µ V OH TPC 2. TPC = 2mV µ k 1k 1k 1M 1M 18 5M TPC 3. I SY TPC 6.

7 k 1k 1M 1M 3M TPC 7. A CL TPC 1. PSRR 12 1 = 5mV k TPC 8. 1k 1M 1M 1M CMRR TPC 11. V OS 12 1 = 5mV Ω 1 5 = 1 2 = 1 = k 1k 1k 1M 1M 1k 1k 1k 1M 1M TPC 9. PSRR TPC 12.

8 V IN = 6.4V SC +SC TPC 13. I SC µ TPC 16. C L = 5pF V IN = 2mV µ TPC 14. TPC 17. C L = 5pF V IN = 2mV k 1.25k 1.5k 1.75k 2.k 2.25k 2.5k = 1kΩ µ µ TPC 15. TPC 18.

9 C L = 3pF V IN = 4V V S = 1.5V = 5mV TPC 19. µ 8 1k TPC 22. 1k 1M 1M 1M CMRR V S = 1.5V = 4 V IN = 1mV V S =.9V C L = 5pF V IN = 2mV µ µ TPC 2. TPC 23. V S = 1.5V = 4 V IN = 1mV V S =.9V = 2mV µ 8 1k 1k 1M 1M 18 3M TPC 21. TPC 24.

10 2 V S =.9V 1 9 V S = 5V I L = 75µA Ω = = 1 = 1 3 1k 1k 1k 1M 1M TPC 25. TPC 27. V OL V S =.9V V IN = 3.2V V S = 5V I L = 75µA TPC 26. µ TPC 27. V OH

11 SOT23AD V to.6 CMOS 4µA 4.5MHz PMOS NMOS 2.6V 5mA AD8515 ESD 4,V ESD AD TPC 1 TPC 3 TPC 4 AD8515 AD C L = 5pF = +1 1a. C L = 5pF = +1 µ C L = 5pF V V AD b. C L = 5pF 2 AD V S =.9V C L = 8pF = 1 µ 2. µ C L = 8pF

12 FPBW SR FPBW = 2π V PEAK AD8515 FPBW 32kHz 1kHz 1kHz VCC 2 1µF f L = 3db f H = 3db H = 1 f L = 2π R1 C1 1 f H = 2π R1 C1 R2 H = 1 + R1 VCC = 1.8V 5V µ VCC VCC MΩ.9µA1.8V AC C3 1µF 2 R6 1MΩ R8 1MΩ 4mV 5. V11 C1 2nF R5 2kΩ R1 5kΩ 3 4 U9 V+ 1 V AD8515 R2 2kΩ C6 1pF VOUT C3 1µF R2 1MΩ R1 1MΩ 3 4 U1 V+ 1 V AD8515 R4 1Ω C1 1µF 1 C2.22µF 4. R3 1kΩ 1kHz 5 1kHz 1kHz AD8515 AD MHz 6 1kHz 1k 1k 1k 1M 1M 1M 6.

13 F OSC = 2πR1 C1 2 3 V OUT 3 R11/R12 2 AD kHz R11 V S = 2.5V F OSC = 13kHz C9 1nF R1 1kΩ C1 1nF R13 1kΩ VCC 3 U1 V+ 1 4 V AD8515 VEE 8. µ R12 1kΩ R11 2.5kΩ 7. 1 VisualDSP++

14 5 SOT-23 RT BSC 2.8 BSC BSC.95 BSC

16 PRINTED IN JAPAN C324--8/2()

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