ANALOG DEVICES LT3471 Adaptable Voltage Drive Noise and Stability Optimized User Guide

June 5, 2024
Analog Devices

ANALOG DEVICES LT3471 Adaptable Voltage Drive Noise and Stability

OptimizedANALOG-DEVICES-LT3471-Adaptable-Voltage-Drive-Noise-and-Stability-
Optimized-product

PRECISION SIGNAL CHAIN

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ANALOG-DEVICES-LT3471-Adaptable-Voltage-Drive-Noise-
and-Stability-Optimized-fig-2 ANALOG-DEVICES-LT3471-Adaptable-Voltage-Drive-Noise-and-
Stability-Optimized-fig-3

For the individual pages:

APPENDIX 1-Channel

ANALOG-DEVICES-LT3471-Adaptable-Voltage-Drive-Noise-
and-Stability-Optimized-fig-5

PART

PART # DESCRIPTION
LT3471 Dual 1.3A, 1.2MHz

Boost/Inverter in 3mm × 3mm DFN
LT8604| High Efficiency 42V/120mA Synchronous Buck
LT8570| Boost/SEPIC/Inverting DC/DC Converter with 65V Switch, Soft-Start and Sync.
LT3999| Low Noise, 1A, 1MHz Push-Pull DC/DC Driver with Duty Cycle Control
ADP7118| 20V, 200mA, Low Noise, CMOS LDO Linear Regulator
ADP7142| 40V, 200 mA, Low Noise, CMOS LDO Linear Regulator
ADP7182| –28V, −200mA, Low Noise, Linear Regulator

POWER REQUIREMENTS


PARAMETER

| STAGES| Buffer| Buffer| Isolation| DAC| Amp| Protection
---|---|---|---|---|---|---|---
Part #| ADA4077| AD8676| ADuM1441| AD5791| AD8675| ADG5401F
Pin| V+| V-| V+| V-| VDD1| VDD2| VCC| IOVCC| VDD| VSS| V+| V-| VDD| VSS
Supply

Voltage

| V| ****

15

| ****

-15

| ****

15

| ****

-15

| ****

3.3

| ****

3.3

| ****

3.3

| ****

3.3

| ****

15

| ****

-15

| ****

15

| ****

-15

| ****

15

| ****

-15

Supply Current| mA| ****

0.65

| ****

-0.65

| ****

4.2

| ****

-4.2

| ****

0.9

| ****

-0.75

| ****

0.9

| ****

0.14

| ****

5.2

| ****

-4.9

| ****

3.8

| ****

-3.8

| ****

0.22

| ****

0.09

PSRR| dB| 12

(1MHz)

| 24

(1MHz)

| 22

(1MHz)

| 68

(1MHz)

| –| –| 48

(1MHz)

| 52

(1MHz)

| 82 (1MHz)

  • Note 1: The supply currents indicated are the maximum quiescent current of the supply rails. For overall full load or short circuit current specifications, refer to the datasheets of the signal chain components.
  • Note 2: The supply voltages indicated are the values for typical applications.
  • Note 3: Consult the corresponding datasheets for details on power dissipation if needed.
  • Note 4: The actual supply current requirement shall be multiplied depending on the number of channels on the signal chain.

References

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