Datasheet AD8420 (Analog Devices) - 8
| 制造商 | Analog Devices |
| 描述 | Wide Supply Range, Micropower, Rail-to-Rail Instrumentation Amplifier |
| 页数 / 页 | 26 / 8 — AD8420. Data Sheet. PIN CONFIGURATION AND FUNCTION DESCRIPTIONS. NC 1. 8 … |
| 修订版 | A |
| 文件格式/大小 | PDF / 467 Kb |
| 文件语言 | 英语 |
AD8420. Data Sheet. PIN CONFIGURATION AND FUNCTION DESCRIPTIONS. NC 1. 8 VOUT. +IN 2. 7 FB. –IN 3. 6 REF. TOP VIEW. 5 +VS. (Not to Scale)
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文件文字版本
AD8420 Data Sheet PIN CONFIGURATION AND FUNCTION DESCRIPTIONS AD8420 NC 1 8 VOUT +IN 2 + – 7 FB –IN 3 – + 6 REF –V TOP VIEW
-002
S 4 5 +VS (Not to Scale)
9945 0 Figure 2. Pin Configuration
Table 6. Pin Function Descriptions Pin No. Mnemonic Description
1 NC This pin is not connected internally. For best CMRR vs. frequency and leakage performance, connect this pin to negative supply. 2 +IN Positive Input. 3 −IN Negative Input. 4 −VS Negative Supply. 5 +VS Positive Supply. 6 REF Reference Input. 7 FB Feedback Input. 8 VOUT Output. Rev. A | Page 8 of 26 Document Outline FEATURES APPLICATIONS PIN CONFIGURATION GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION ARCHITECTURE SETTING THE GAIN GAIN ACCURACY INPUT VOLTAGE RANGE INPUT PROTECTION Input Voltages Beyond the Rails Large Differential Input Voltage LAYOUT Common-Mode Rejection Ratio over Frequency Power Supplies Reference DRIVING THE REFERENCE PIN INPUT BIAS CURRENT RETURN PATH RADIO FREQUENCY INTERFERENCE (RFI) OUTPUT BUFFERING APPLICATIONS INFORMATION AD8420 IN ELECTROCARDIOGRAPHY (ECG) CLASSIC BRIDGE CIRCUIT 4 mA TO 20 mA SINGLE-SUPPLY RECEIVER OUTLINE DIMENSIONS ORDERING GUIDE
-002
S 4 5 +VS (Not to Scale)
9945 0 Figure 2. Pin Configuration
Table 6. Pin Function Descriptions Pin No. Mnemonic Description
1 NC This pin is not connected internally. For best CMRR vs. frequency and leakage performance, connect this pin to negative supply. 2 +IN Positive Input. 3 −IN Negative Input. 4 −VS Negative Supply. 5 +VS Positive Supply. 6 REF Reference Input. 7 FB Feedback Input. 8 VOUT Output. Rev. A | Page 8 of 26 Document Outline FEATURES APPLICATIONS PIN CONFIGURATION GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION ARCHITECTURE SETTING THE GAIN GAIN ACCURACY INPUT VOLTAGE RANGE INPUT PROTECTION Input Voltages Beyond the Rails Large Differential Input Voltage LAYOUT Common-Mode Rejection Ratio over Frequency Power Supplies Reference DRIVING THE REFERENCE PIN INPUT BIAS CURRENT RETURN PATH RADIO FREQUENCY INTERFERENCE (RFI) OUTPUT BUFFERING APPLICATIONS INFORMATION AD8420 IN ELECTROCARDIOGRAPHY (ECG) CLASSIC BRIDGE CIRCUIT 4 mA TO 20 mA SINGLE-SUPPLY RECEIVER OUTLINE DIMENSIONS ORDERING GUIDE