Datasheet AD8295 (Analog Devices) - 7
| Hersteller | Analog Devices |
| Beschreibung | Precision Instrumentation Amplifier with Signal Processing Amplifiers |
| Seiten / Seite | 29 / 7 — AD8295. INTERNAL RESISTOR NETWORK. Table 4. A Grade. B Grade. Parameter … |
| Revision | A |
| Dateiformat / Größe | PDF / 554 Kb |
| Dokumentensprache | Englisch |
AD8295. INTERNAL RESISTOR NETWORK. Table 4. A Grade. B Grade. Parameter Test. Conditions. Min. Typ. Max. Unit
Textversion des Dokuments
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AD8295 INTERNAL RESISTOR NETWORK
When used with internal Op Amp A1, TA = 25°C, unless otherwise noted. Use in external op amp feedback loops is not recommended.
Table 4. A Grade B Grade Parameter Test Conditions Min Typ Max Min Typ Max Unit
Nominal Resistor Value 20 20 kΩ Resistor Matching 0.1 0.03 % Matching Temperature Coefficient TA = −40°C to +85°C 5 1 ppm/°C Absolute Resistor Accuracy 0.2 0.1 % Absolute Temperature Coefficient TA = −40°C to +85°C −50 −50 ppm/°C
POWER AND TEMPERATURE SPECIFICATIONS
VS = ±15 V, VREF = 0 V, TA = 25°C, unless otherwise noted.
Table 5. A Grade B Grade Parameter Test Conditions Min Typ Max Min Typ Max Unit
POWER SUPPLY Operating Range ±2.3 ±18 ±2.3 ±18 V Quiescent Current In-amp + two op amps 2 2.3 2 2.3 mA Over Temperature TA = −40°C to +85°C 2.5 2.5 mA TEMPERATURE RANGE Specified Performance −40 +85 −40 +85 °C Operational Performance1 −40 +125 −40 +125 °C 1 See the Typical Performance Characteristics section for expected operation from 85°C to 125°C. Rev. A | Page 6 of 28 Document Outline FEATURES APPLICATIONS CONNECTION DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS INSTRUMENTATION AMPLIFIER SPECIFICATIONS, SINGLE-ENDED AND DIFFERENTIAL OUTPUT CONFIGURATIONS OP AMP SPECIFICATIONS INTERNAL RESISTOR NETWORK POWER AND TEMPERATURE SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL CHARACTERISTICS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS IN-AMP OP AMPS SYSTEM THEORY OF OPERATION UNCOMMITTED OP AMPS INSTRUMENTATION AMPLIFIER Gain Selection Common-Mode Input Voltage Range Reference Terminal LAYOUT Routing and Vias Common-Mode Rejection over Frequency Unused Op Amps Reference Power Supplies INPUT PROTECTION INPUT BIAS CURRENT RETURN PATH RF INTERFERENCE DIFFERENTIAL OUTPUT APPLICATIONS INFORMATION CREATING A REFERENCE VOLTAGE AT MIDSCALE HIGH ACCURACY G = −1 CONFIGURATION WITH LOW-PASS FILTER TWO-POLE SALLEN-KEY FILTER AC-COUPLED INSTRUMENTATION AMPLIFIER DRIVING DIFFERENTIAL ADCs OUTLINE DIMENSIONS ORDERING GUIDE
AD8295 INTERNAL RESISTOR NETWORK
When used with internal Op Amp A1, TA = 25°C, unless otherwise noted. Use in external op amp feedback loops is not recommended.
Table 4. A Grade B Grade Parameter Test Conditions Min Typ Max Min Typ Max Unit
Nominal Resistor Value 20 20 kΩ Resistor Matching 0.1 0.03 % Matching Temperature Coefficient TA = −40°C to +85°C 5 1 ppm/°C Absolute Resistor Accuracy 0.2 0.1 % Absolute Temperature Coefficient TA = −40°C to +85°C −50 −50 ppm/°C
POWER AND TEMPERATURE SPECIFICATIONS
VS = ±15 V, VREF = 0 V, TA = 25°C, unless otherwise noted.
Table 5. A Grade B Grade Parameter Test Conditions Min Typ Max Min Typ Max Unit
POWER SUPPLY Operating Range ±2.3 ±18 ±2.3 ±18 V Quiescent Current In-amp + two op amps 2 2.3 2 2.3 mA Over Temperature TA = −40°C to +85°C 2.5 2.5 mA TEMPERATURE RANGE Specified Performance −40 +85 −40 +85 °C Operational Performance1 −40 +125 −40 +125 °C 1 See the Typical Performance Characteristics section for expected operation from 85°C to 125°C. Rev. A | Page 6 of 28 Document Outline FEATURES APPLICATIONS CONNECTION DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS INSTRUMENTATION AMPLIFIER SPECIFICATIONS, SINGLE-ENDED AND DIFFERENTIAL OUTPUT CONFIGURATIONS OP AMP SPECIFICATIONS INTERNAL RESISTOR NETWORK POWER AND TEMPERATURE SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL CHARACTERISTICS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS IN-AMP OP AMPS SYSTEM THEORY OF OPERATION UNCOMMITTED OP AMPS INSTRUMENTATION AMPLIFIER Gain Selection Common-Mode Input Voltage Range Reference Terminal LAYOUT Routing and Vias Common-Mode Rejection over Frequency Unused Op Amps Reference Power Supplies INPUT PROTECTION INPUT BIAS CURRENT RETURN PATH RF INTERFERENCE DIFFERENTIAL OUTPUT APPLICATIONS INFORMATION CREATING A REFERENCE VOLTAGE AT MIDSCALE HIGH ACCURACY G = −1 CONFIGURATION WITH LOW-PASS FILTER TWO-POLE SALLEN-KEY FILTER AC-COUPLED INSTRUMENTATION AMPLIFIER DRIVING DIFFERENTIAL ADCs OUTLINE DIMENSIONS ORDERING GUIDE