Datasheet AD8270 (Analog Devices) - 6

AD8270 Data Sheet PIN CONFIGURATION AND FUNCTION DESCRIPTIONS A T TB S S +V OU OU –V 16 15 14 13 –IN1A 1 12 –IN1B –IN2A 2 11 AD8270 –IN2B TOP VIEW +IN2A 3 10 +IN2B +IN1A 4 9 +IN1B 5 6 7 8 A A 1 2 2B 1B F F F F RE RE RE RE
002
NOTES 1. TIE THE EXPOSED PAD TO –VS.
06979- Figure 3. Pin Configuration
Table 6. Pin Function Descriptions Pin No. Mnemonic Description
1 −IN1A 10 kΩ Resistor Connected to Negative Terminal of Op Amp A. 2 −IN2A 10 kΩ Resistor Connected to Negative Terminal of Op Amp A. 3 +IN2A 10 kΩ Resistor Connected to Positive Terminal of Op Amp A. 4 +IN1A 10 kΩ Resistor Connected to Positive Terminal of Op Amp A. 5 REF1A 20 kΩ Resistor Connected to Positive Terminal of Op Amp A. Most configurations use this pin as a reference voltage input. 6 REF2A 20 kΩ Resistor Connected to Positive Terminal of Op Amp A. Most configurations use this pin as a reference voltage input. 7 REF2B 20 kΩ Resistor Connected to Positive Terminal of Op Amp B. Most configurations use this pin as a reference voltage input. 8 REF1B 20 kΩ Resistor Connected to Positive Terminal of Op Amp B. Most configurations use this pin as a reference voltage input. 9 +IN1B 10 kΩ Resistor Connected to Positive Terminal of Op Amp B. 10 +IN2B 10 kΩ Resistor Connected to Positive Terminal of Op Amp B. 11 −IN2B 10 kΩ Resistor Connected to Negative Terminal of Op Amp B. 12 −IN1B 10 kΩ Resistor Connected to Negative Terminal of Op Amp B. 13 −VS Negative Supply. 14 OUTB Op Amp B Output. 15 OUTA Op Amp A Output. 16 +VS Positive Supply. 0 EPAD Exposed Pad. Tie the exposed pad to −VS. Rev. A | Page 6 of 20 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS DIFFERENCE AMPLIFIER CONFIGURATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE MAXIMUM POWER DISSIPATION ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION CIRCUIT INFORMATION DC Performance AC Performance Production Costs Size DRIVING THE AD8270 PACKAGE CONSIDERATIONS POWER SUPPLIES INPUT VOLTAGE RANGE APPLICATIONS INFORMATION DIFFERENCE AMPLIFIER CONFIGURATIONS SINGLE-ENDED CONFIGURATIONS Gain of 1 Configuration DIFFERENTIAL OUTPUT DRIVING AN ADC DRIVING CABLING OUTLINE DIMENSIONS ORDERING GUIDE