Datasheet AD8628, AD8629, AD8630 (Analog Devices)
| Fabricante | Analog Devices |
| Descripción | Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Operational Amplifier |
| Páginas / Página | 24 / 1 — Zero-Drift, Single-Supply, Rail-to-Rail. Input/Output Operational … |
| Revisión | L |
| Formato / tamaño de archivo | PDF / 338 Kb |
| Idioma del documento | Inglés |
Zero-Drift, Single-Supply, Rail-to-Rail. Input/Output Operational Amplifier. Data Sheet. AD8628/. AD8629/. AD8630. FEATURES
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Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Operational Amplifier Data Sheet AD8628/ AD8629/ AD8630 FEATURES PIN CONFIGURATIONS Lowest auto-zero amplifier noise OUT 1 5 V+ Low offset voltage: 1 μV AD8628 Input offset drift: 0.002 μV/°C V– 2 TOP VIEW (Not to Scale) Rail-to-rail input and output swing
01
+IN 3 4 –IN
-0 35
5 V single-supply operation
027
High gain, CMRR, and PSRR: 130 dB
Figure 1. 5-Lead TSOT (UJ-5) and 5-Lead SOT-23 (RJ-5)
Very low input bias current: 100 pA maximum Low supply current: 1.0 mA Overload recovery time: 50 μs NC 1 8 NC No external components required –IN 2 AD8628 7 V+ +IN TOP VIEW 6 OUT Qualified for automotive applications 3 V– 4 (Not to Scale) 5 NC
002
APPLICATIONS
5- 73
NC = NO CONNECT
02
Automotive sensors
Figure 2. 8-Lead SOIC_N (R-8)
Pressure and position sensors Strain gage amplifiers Medical instrumentation OUT A 1 8 V+ Thermocouple amplifiers –IN A 2 AD8629 7 OUT B Precision current sensing +IN A TOP VIEW 3 6 –IN B (Not to Scale)
3 -06
Photodiode amplifiers V– 4 5 +IN B
2735 0
GENERAL DESCRIPTION
Figure 3. 8-Lead SOIC_N (R-8) and 8-Lead MSOP (RM-8) This amplifier has ultralow offset, drift, and bias current. The AD8628/AD8629/AD8630 are wide bandwidth auto-zero amplifiers featuring rail-to-rail input and output swing and low
OUT A 1 14 OUT D –IN A 2 13 –IN D
noise. Operation is fully specified from 2.7 V to 5 V single supply
+IN A 3 12 +IN D AD8630
(±1.35 V to ±2.5 V dual supply).
V+ 4 TOP VIEW 11 V– (Not to Scale)
The AD8628/AD8629/AD8630 provide benefits previously
+IN B 5 10 +IN C –IN B 6 9 –IN C
found only in expensive auto-zeroing or chopper-stabilized 6 06
OUT B 7 8 OUT C
5- amplifiers. Using Analog Devices, Inc., topology, these zero- 73 02 drift amplifiers combine low cost with high accuracy and low Figure 4. 14-Lead SOIC_N (R-14) and 14-Lead TSSOP (RU-14) noise. No external capacitor is required. In addition, the AD8628/ AD8629/AD8630 greatly reduce the digital switching noise The AD8628/AD8629/AD8630 are specified for the extended found in most chopper-stabilized amplifiers. industrial temperature range (−40°C to +125°C). The AD8628 With an offset voltage of only 1 μV, drift of less than 0.005 μV/°C, is available in tiny 5-lead TSOT, 5-lead SOT-23, and 8-lead and noise of only 0.5 μV p-p (0.1 Hz to 10 Hz), the AD8628/ narrow SOIC plastic packages. The AD8629 is available in the AD8629/AD8630 are suited for applications where error standard 8-lead narrow SOIC and MSOP plastic packages. The sources cannot be tolerated. Position and pressure sensors, AD8630 quad amplifier is available in 14-lead narrow SOIC medical equipment, and strain gage amplifiers benefit greatly and 14-lead TSSOP plastic packages. See the Ordering Guide from nearly zero drift over their operating temperature range. section for automotive grades. Many systems can take advantage of the rail-to-rail input and output swings provided by the AD8628/AD8629/AD8630 to reduce input biasing complexity and maximize SNR.
Rev. L Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. No license is granted by implication or otherwise under any patent or patent rights of Analog Tel: 781.329.4700 ©2002–2020 Analog Devices, Inc. All rights reserved. Devices. Trademarks and registered trademarks are the property of their respective owners. Technical Support www.analog.com
Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION PIN CONFIGURATIONS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ELECTRICAL CHARACTERISTICS—VS = 5.0 V ELECTRICAL CHARACTERISTICS—VS = 2.7 V ABSOLUTE MAXIMUM RATINGS THERMAL CHARACTERISTICS ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS FUNCTIONAL DESCRIPTION 1/f NOISE PEAK-TO-PEAK NOISE NOISE BEHAVIOR WITH FIRST-ORDER, LOW-PASS FILTER TOTAL INTEGRATED INPUT-REFERRED NOISE FOR FIRST-ORDER FILTER INPUT OVERVOLTAGE PROTECTION OUTPUT PHASE REVERSAL OVERLOAD RECOVERY TIME INFRARED SENSORS PRECISION CURRENT SHUNT SENSOR OUTPUT AMPLIFIER FOR HIGH PRECISION DACS OUTLINE DIMENSIONS ORDERING GUIDE AUTOMOTIVE PRODUCTS
Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Operational Amplifier Data Sheet AD8628/ AD8629/ AD8630 FEATURES PIN CONFIGURATIONS Lowest auto-zero amplifier noise OUT 1 5 V+ Low offset voltage: 1 μV AD8628 Input offset drift: 0.002 μV/°C V– 2 TOP VIEW (Not to Scale) Rail-to-rail input and output swing
01
+IN 3 4 –IN
-0 35
5 V single-supply operation
027
High gain, CMRR, and PSRR: 130 dB
Figure 1. 5-Lead TSOT (UJ-5) and 5-Lead SOT-23 (RJ-5)
Very low input bias current: 100 pA maximum Low supply current: 1.0 mA Overload recovery time: 50 μs NC 1 8 NC No external components required –IN 2 AD8628 7 V+ +IN TOP VIEW 6 OUT Qualified for automotive applications 3 V– 4 (Not to Scale) 5 NC
002
APPLICATIONS
5- 73
NC = NO CONNECT
02
Automotive sensors
Figure 2. 8-Lead SOIC_N (R-8)
Pressure and position sensors Strain gage amplifiers Medical instrumentation OUT A 1 8 V+ Thermocouple amplifiers –IN A 2 AD8629 7 OUT B Precision current sensing +IN A TOP VIEW 3 6 –IN B (Not to Scale)
3 -06
Photodiode amplifiers V– 4 5 +IN B
2735 0
GENERAL DESCRIPTION
Figure 3. 8-Lead SOIC_N (R-8) and 8-Lead MSOP (RM-8) This amplifier has ultralow offset, drift, and bias current. The AD8628/AD8629/AD8630 are wide bandwidth auto-zero amplifiers featuring rail-to-rail input and output swing and low
OUT A 1 14 OUT D –IN A 2 13 –IN D
noise. Operation is fully specified from 2.7 V to 5 V single supply
+IN A 3 12 +IN D AD8630
(±1.35 V to ±2.5 V dual supply).
V+ 4 TOP VIEW 11 V– (Not to Scale)
The AD8628/AD8629/AD8630 provide benefits previously
+IN B 5 10 +IN C –IN B 6 9 –IN C
found only in expensive auto-zeroing or chopper-stabilized 6 06
OUT B 7 8 OUT C
5- amplifiers. Using Analog Devices, Inc., topology, these zero- 73 02 drift amplifiers combine low cost with high accuracy and low Figure 4. 14-Lead SOIC_N (R-14) and 14-Lead TSSOP (RU-14) noise. No external capacitor is required. In addition, the AD8628/ AD8629/AD8630 greatly reduce the digital switching noise The AD8628/AD8629/AD8630 are specified for the extended found in most chopper-stabilized amplifiers. industrial temperature range (−40°C to +125°C). The AD8628 With an offset voltage of only 1 μV, drift of less than 0.005 μV/°C, is available in tiny 5-lead TSOT, 5-lead SOT-23, and 8-lead and noise of only 0.5 μV p-p (0.1 Hz to 10 Hz), the AD8628/ narrow SOIC plastic packages. The AD8629 is available in the AD8629/AD8630 are suited for applications where error standard 8-lead narrow SOIC and MSOP plastic packages. The sources cannot be tolerated. Position and pressure sensors, AD8630 quad amplifier is available in 14-lead narrow SOIC medical equipment, and strain gage amplifiers benefit greatly and 14-lead TSSOP plastic packages. See the Ordering Guide from nearly zero drift over their operating temperature range. section for automotive grades. Many systems can take advantage of the rail-to-rail input and output swings provided by the AD8628/AD8629/AD8630 to reduce input biasing complexity and maximize SNR.
Rev. L Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. No license is granted by implication or otherwise under any patent or patent rights of Analog Tel: 781.329.4700 ©2002–2020 Analog Devices, Inc. All rights reserved. Devices. Trademarks and registered trademarks are the property of their respective owners. Technical Support www.analog.com
Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION PIN CONFIGURATIONS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ELECTRICAL CHARACTERISTICS—VS = 5.0 V ELECTRICAL CHARACTERISTICS—VS = 2.7 V ABSOLUTE MAXIMUM RATINGS THERMAL CHARACTERISTICS ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS FUNCTIONAL DESCRIPTION 1/f NOISE PEAK-TO-PEAK NOISE NOISE BEHAVIOR WITH FIRST-ORDER, LOW-PASS FILTER TOTAL INTEGRATED INPUT-REFERRED NOISE FOR FIRST-ORDER FILTER INPUT OVERVOLTAGE PROTECTION OUTPUT PHASE REVERSAL OVERLOAD RECOVERY TIME INFRARED SENSORS PRECISION CURRENT SHUNT SENSOR OUTPUT AMPLIFIER FOR HIGH PRECISION DACS OUTLINE DIMENSIONS ORDERING GUIDE AUTOMOTIVE PRODUCTS