Datasheet AD605 (Analog Devices) - 6
| Manufacturer | Analog Devices |
| Description | Dual, Low Noise, Single-Supply Variable Gain Amplifier |
| Pages / Page | 24 / 6 — AD605. PIN CONFIGURATION AND FUNCTION DESCRIPTIONS. VGN1 1. 16 VREF. –IN1 … |
| Revision | F |
| File Format / Size | PDF / 473 Kb |
| Document Language | English |
AD605. PIN CONFIGURATION AND FUNCTION DESCRIPTIONS. VGN1 1. 16 VREF. –IN1 2. 15 OUT1. +IN1 3. 14 FBK1. GND1 4. 13 VPOS. TOP VIEW. GND2 5
Model Line for this Datasheet
Text Version of Document
AD605 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS VGN1 1 16 VREF –IN1 2 15 OUT1 +IN1 3 14 FBK1 GND1 4 AD605 13 VPOS TOP VIEW GND2 5 12 (Not to Scale) VPOS +IN2 6 11 FBK2 –IN2 7 10 OUT2
2
VGN2 8 9 VOCM
00 1- 54 00 Figure 2. Pin Configuration
Table 3. Pin Function Descriptions Pin No. Mnemonic Description
1 VGN1 CH1 Gain Control Input and Power-Down Pin. If grounded, device is off; otherwise, positive voltage increases gain. 2 −IN1 CH1 Negative Input. 3 +IN1 CH1 Positive Input. 4 GND1 Ground. 5 GND2 Ground. 6 +IN2 CH2 Positive Input. 7 −IN2 CH2 Negative Input. 8 VGN2 CH2 Gain Control Input and Power-Down Pin. If grounded, device is off; otherwise, positive voltage increases gain. 9 VOCM Input to This Pin Defines Common-Mode Voltage for OUT1 and OUT2. 10 OUT2 CH2 Output. 11 FBK2 Feedback Pin That Selects Gain Range of CH2. 12 VPOS Positive Supply. 13 VPOS Positive Supply. 14 FBK1 Feedback Pin That Selects Gain Range of CH1. 15 OUT1 CH1 Output. 16 VREF Input to This Pin Sets Gain Scaling for Both Channels: 2.5 V = 20 dB/V and 1.67 V = 30 dB/V. Rev. F | Page 6 of 24 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS (PER CHANNEL) THEORY OF OPERATION DIFFERENTIAL LADDER (ATTENUATOR) AC COUPLING GAIN CONTROL INTERFACE FIXED GAIN AMPLIFIER AND INTERPOLATOR CIRCUITS—APPLYING AN ACTIVE FEEDBACK AMPLIFIER APPLICATIONS INFORMATION CONNECTING TWO AMPLIFIERS TO DOUBLE THE GAIN RANGE EVALUATION BOARD INPUT CONNECTIONS ADJUSTING GAIN, COMMON-MODE, AND REFERENCE LEVELS OUTPUT CONNECTIONS OUTLINE DIMENSIONS ORDERING GUIDE
2
VGN2 8 9 VOCM
00 1- 54 00 Figure 2. Pin Configuration
Table 3. Pin Function Descriptions Pin No. Mnemonic Description
1 VGN1 CH1 Gain Control Input and Power-Down Pin. If grounded, device is off; otherwise, positive voltage increases gain. 2 −IN1 CH1 Negative Input. 3 +IN1 CH1 Positive Input. 4 GND1 Ground. 5 GND2 Ground. 6 +IN2 CH2 Positive Input. 7 −IN2 CH2 Negative Input. 8 VGN2 CH2 Gain Control Input and Power-Down Pin. If grounded, device is off; otherwise, positive voltage increases gain. 9 VOCM Input to This Pin Defines Common-Mode Voltage for OUT1 and OUT2. 10 OUT2 CH2 Output. 11 FBK2 Feedback Pin That Selects Gain Range of CH2. 12 VPOS Positive Supply. 13 VPOS Positive Supply. 14 FBK1 Feedback Pin That Selects Gain Range of CH1. 15 OUT1 CH1 Output. 16 VREF Input to This Pin Sets Gain Scaling for Both Channels: 2.5 V = 20 dB/V and 1.67 V = 30 dB/V. Rev. F | Page 6 of 24 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS (PER CHANNEL) THEORY OF OPERATION DIFFERENTIAL LADDER (ATTENUATOR) AC COUPLING GAIN CONTROL INTERFACE FIXED GAIN AMPLIFIER AND INTERPOLATOR CIRCUITS—APPLYING AN ACTIVE FEEDBACK AMPLIFIER APPLICATIONS INFORMATION CONNECTING TWO AMPLIFIERS TO DOUBLE THE GAIN RANGE EVALUATION BOARD INPUT CONNECTIONS ADJUSTING GAIN, COMMON-MODE, AND REFERENCE LEVELS OUTPUT CONNECTIONS OUTLINE DIMENSIONS ORDERING GUIDE
