AT8551 ANALOGTECHNOLOGIES | Alldatasheet
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Copyrights 2000-2022, Analog Technologies, Inc. All Rights Reserved. Updated on 6/14/2022 Email: staff@analogti.com/sales@analogti.com 1 Analog Technologies AT8551/AT8552 Zero-Drift RRIO CMOS Operational AmplifierAn Analog in Silicon Valleys Figure 1. Physical Photos of AT8551 Table 1. AT8551/8552 vs. AD8551/8552
FEATURES
Upgraded Drop-in Replacement for AD8551 Low Offset Voltage: 1μV (typ) 5μV (max) Input Offset Drift: 0.005μV/°C (max) High Gain Bandwidth Product: 4.5MHz Rail-to-Rail Input and Output High Gain, CMRR & PSRR: ≥130dB High Slew Rate: 2.7V/μs Low Noise: 0.75μVP-P (0.01~10Hz) Low Power Consumption: 640μA/op amp Overload Recovery Time: 1μs Low Supply Voltage: +2.7V to +5.5V No External Capacitors Required Extended Temperature: −40°C to +125°C
APPLICATIONS
Temperature & Pressure Sensors Amplifier Weight Scale & Strain Gage Amplifiers Medical/Industrial Instrumentation Handheld Test Equipment Precision Current Sensing Thermocouple Amplifiers
DESCRIPTION
This AT855x family includes single (AT8551) and dual (AT8551) general-purpose CMOS operational amplifiers that provides ultralow noise, offset and power. The AT8551 use auto-zero techniques to simultaneously provide very low offset voltage (5μV max) and near-zero drift over time and temperature. This miniature, high-precision operational amplifiers offset high input impedance and rail-to-rail input and rail-to-rail output swing. With high gain-bandwidth product of 4.5MHz and slew rate of 2.7V/μs. This op amp operates as low as +2.7V (±1.35) and up to +5.5V (±2.75V). The AT8551 single amplifier is available in 5-lead SOT23, 8-lead MSOP8 and 8-lead SOIC packages, The AT8552 dual amplifier is available in 8-lead SOIC and 8-lead MSOP8 narrow surface mount packages. The AT8551/AT8552 (dual version) are specified for the extended industrial and automotive temperature range (−40°C to 125°C).
Copyrights 2000-2022, Analog Technologies, Inc. All Rights Reserved. Updated on 6/14/2022 Email: staff@analogti.com/sales@analogti.com 2 Analog Technologies AT8551/AT8552 Zero-Drift RRIO CMOS Operational AmplifierAn Analog in Silicon Valleys PIN CONFIGURATIONS PIN DESCRIPTION Descriptions of the pins are listed in Table 2 (single op amps) and Table 3 (dual op amps). Table 2: Pin Function Table for Single OP AMPS AT8551 Symbol Description SOT23-5
1 OUT Analog Output
4 −IN Inverting Input
5 V+ Positive Power Supply
2 V− Negative Power Supply
- NC No Internal Connection Table 3: Pin Function Table for Dual OP AMPS AT8552 Symbol Description MSOP-8 SOIC-8 1 1 OUT A Analog Output (Op Amp A) 2 2 −IN A Inverting Input (Op Amp A) 3 3 +IN A Noninverting Input (Op Amp A) 4 4 V− Negative Power Supply 5 5 +IN B Noninverting Input (Op Amp B) 6 6 −IN B Inverting Input (Op Amp B) 7 7 OUT B Analog Output (Op Amp B) 8 8 V+ Positive Power Supply
Copyrights 2000-2022, Analog Technologies, Inc. All Rights Reserved. Updated on 6/14/2022 Email: staff@analogti.com/sales@analogti.com 3 Analog Technologies AT8551/AT8552 Zero-Drift RRIO CMOS Operational AmplifierAn Analog in Silicon Valleys ABSOLUTE MAXIMUM RATINGS Table 4. Parameter Rating Supply Voltage, V+ to V− 7.0V Input Terminals, Voltage (2) −0.5 to (V+) + 0.5V Input Terminals, Current (2) ±10mA Storage Temperature −65°C to +150°C Operating Temperature −40°C to +125°C Junction Temperature 150°C Package Thermal Resistance @ TA = +25°C SOT23-5 200°C/W MSOP-8, SOIC-8 150°C Lead Temperature (Soldering, 10s) 260°C ESD Susceptibility HBM 5000V MM 400V (1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. (2) Input terminals are diode-clamped to the power- supply rails. Input signals that can swing more than 0.5V beyond the supply rails should be current-limited to 10mA or less. ESD CAUTION ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality. THERMAL CHARACTERISTICS Table 5. RθJA Junction-to-ambient thermal resistance 180.3 140.1 220.8 °C/W RθJC (top) Junction-to-case (top) thermal resistance 48.1 89.8 97.5 °C/W RθJB Junction-to-board thermal resistance 100.9 80.6 61.7 °C/W ψJT Junction-to-top characterization parameter 2.4 28.7 7.6 °C/W ψJB Junction-to-board characterization parameter 99.3 80.1 61.1 °C/W
Copyrights 2000-2022, Analog Technologies, Inc. All Rights Reserved. Updated on 6/14/2022 Email: staff@analogti.com/sales@analogti.com 4 Analog Technologies AT8551/AT8552 Zero-Drift RRIO CMOS Operational AmplifierAn Analog in Silicon Valleys
ELECTRICAL CHARACTERISTICS
Limits apply over the specified temperature range: TA = −40°C to +125°C. (At TA = +25°C, VS =5V, RL = 10kΩ connected to VS/2, and VOUT = VS/2, unless otherwise noted.) Table 6. Parameter Symbol Test Conditions Min. Typ. Max. Unit INPUT CHARACTERISTICS Offset Voltage VOS VCM = VS/2 TA = −40°C to +125°C 1 5 μV Input Bias Current IB VCM = VS/2 TA = −40°C to +125°C 50 pA Input Offset Current IOS TA = −40°C to +125°C 10 pA Input Voltage Range VIN 2.7 5.5 V Common-Mode Voltage Range VCM (V−) − 0.1 (V+) + 0.1 V Common-Mode Rejection Ratio CMRR (V–) – 0.1V < VCM < (V+) + 0.1V TA = −40°C to +125°C 110 130 dB Offset Voltage Drift ∆VOS/∆T TA = −40°C to +125°C 0.005 0.05 μV/°C Channel Separation, dc 0.1 μV/V Open-Loop Gain AOL RL=10kΩ, VO=0.3V to 4.7V TA = −40°C to +125°C 110 130 dB INPUT CAPACITANCE Differential 1 pF Common-Mode 5 pF OUTPUT CHARACTERISTICS Output Voltage High VOH RL = 100kΩ to GND TA = −40°C to +125°C 4.99 4.998 V RL = 10kΩ to GND TA = −40°C to +125°C 4.95 4.98 V Output Voltage Low VOL RL = 100kΩ to V+ TA = −40°C to +125°C 1 10 mV RL = 10kΩ to V+ TA = −40°C to +125°C 10 30 mV Output Short-Circuit Limit Current ISC TA = −40°C to +125°C 50 mA
Copyrights 2000-2022, Analog Technologies, Inc. All Rights Reserved. Updated on 6/14/2022 Email: staff@analogti.com/sales@analogti.com 5 Analog Technologies AT8551/AT8552 Zero-Drift RRIO CMOS Operational AmplifierAn Analog in Silicon Valleys POWER SUPPLY Power Supply Rejection Ratio PSRR VS = +2.7V to +5.5V, VCM = 0 TA = −40°C to +125°C 110 130 dB Quiescent Current/Amplifier IQ VO = 0 TA = −40°C to +125°C 640 870 mA Supply Voltage Range VIN 2.7 5.5 V DYNAMIC PERFORMANCE Slew Rate SR G=+1 2.7 V/μs Gain Bandwidth Product GBP 4.5 MHz Overload Recovery Time 1 μs NOISE PERFORMANCE Voltage Noise en p-p 0.01Hz to 10Hz 0.75 μV p-p en p-p 0.01Hz to 1Hz 0.22 μV p-p Voltage Noise Density en f = 1kHz 35 nV/√Hz Current Noise Density in f = 10Hz 1.5 fA/√Hz
Copyrights 2000-2022, Analog Technologies, Inc. All Rights Reserved. Updated on 6/14/2022 Email: staff@analogti.com/sales@analogti.com 6 Analog Technologies AT8551/AT8552 Zero-Drift RRIO CMOS Operational AmplifierAn Analog in Silicon Valleys TYPICAL CHARACTERISTICS At TA = +25°C, Vs = 5V, RLOAD = 10kΩ connected to VS/2, VOUT = VS/2, unless otherwise noted. 123456789 1 0 1 1 1 2 1 3 1 4 1 5 1 6 Population 123456789 1 0 1 1 1 2 1 3 Number of Amplifiers
Copyrights 2000-2022, Analog Technologies, Inc. All Rights Reserved. Updated on 6/14/2022 Email: staff@analogti.com/sales@analogti.com 7 Analog Technologies AT8551/AT8552 Zero-Drift RRIO CMOS Operational AmplifierAn Analog in Silicon Valleys Source Current (mA) Sink Current (mA)
Copyrights 2000-2022, Analog Technologies, Inc. All Rights Reserved. Updated on 6/14/2022 Email: staff@analogti.com/sales@analogti.com 8 Analog Technologies AT8551/AT8552 Zero-Drift RRIO CMOS Operational AmplifierAn Analog in Silicon Valleys
Copyrights 2000-2022, Analog Technologies, Inc. All Rights Reserved. Updated on 6/14/2022 Email: staff@analogti.com/sales@analogti.com 9 Analog Technologies AT8551/AT8552 Zero-Drift RRIO CMOS Operational AmplifierAn Analog in Silicon Valleys
APPLICATION INFORMATION
The robust design of the OPAx375 family provides ease-of-use to the circuit designer due to the unity- gain stability, integrated RFI/EMI rejection filter, no phase reversal in overdrive conditions, and high electrostatic discharge (ESD) protection. They use auto- zeroing techniques to provide low offset voltage and very low drift over time and temperature. Good layout practice mandates use of a 0.1µF capacitor placed closely across the supply pins. For lowest offset voltage and precision performance, circuit layout and mechanical conditions should be optimized. Avoid temperature gradients that create thermoelectric effects in thermocouple junctions formed from connecting dissimilar conductors. These thermally-generated potentials can be made to cancel by assuring that they are equal on both input terminals. " Use low thermoelectric-coefficient connections (avoid dissimilar metals). " Thermally isolate components from power supplies or other heat-sources. " Shield op amp and input circuitry from air currents, such as cooling fans. Following these guidelines will reduce the likelihood of junctions being at different temperatures, which can cause thermoelectric voltages of 0.1µV/°C or higher, depending on materials used. OPERATING VOLTAGE The AT8551/AT8552 operational amplifier family operate over a power-supply range of +2.7V to +5.5V (±1.35V to ±2.75V). Supply voltages higher than 7V (absolute maximum) can permanently damage the amplifier. In addition, many specifications apply from –40°C to 125°C. Power- supply pins must be bypassed with 0.1-µF ceramic capacitors. Parameters that vary over supply voltage or temperature are shown in the Typical Characteristics section of this datasheet. MAXIMIZING PERFORMANCE THROUGH PROPER LAYOUT For best operational performance of the device, use good printed-circuit board (PCB) layout practices, including: Noise can propagate into analog circuitry through the power pins of the circuit as a whole and the operational amplifier. Bypass capacitors are used to reduce the coupled noise by providing low- impedance power sources local to the analog circuitry. Connect low-ESR, 0.1-µF ceramic bypass capacitors between each supply pin and ground, placed as close to the device as possible. A single bypass capacitor from V+ to ground is applicable for single supply applications. Place the external components as close to the device as possible. Place the external components as close to the device as possible. Keep the length of input traces as short as possible. Always remember that the input traces are the most sensitive part of the circuit. Consider a driven, low-impedance guard ring around the critical traces. Figure 2. The Layout of Guard Ring
Copyrights 2000-2022, Analog Technologies, Inc. All Rights Reserved. Updated on 6/14/2022 Email: staff@analogti.com/sales@analogti.com 10 Analog Technologies AT8551/AT8552 Zero-Drift RRIO CMOS Operational AmplifierAn Analog in Silicon Valleys be achieved through adjusting R1, R2 and R3, thus TEC controller can detect the temperature range that users require. In different temperature ranges, R1, R2 and R3 have different corresponding resistances. R1, R2 and R3 can be determined by: MIDHIGHLOW HIGHLOWHIGHLOWMID MID R*2RR R*R*2)R(RRRR1 −+ −++= MIDRR1R2 −= MIDLOW MIDLOW RR )RRR1(R1R3 − −+= EA Positive Coefficient VTMO(TL) = 0.1V, VTMO(TU) = 3.9V )(TV)(TV )(TV)(TV ∆VG LPTCICUPTCIC LTMOUTMO PTCIC TMO −== 1R1//R2 R3G += )(TV)(TV)(TV LPTCICUPTCIC MPTCIC 2V2 0.1V3.9VV),(T V= V TMOMPTCICPTCIC =+= )(TV4V )(TV2V )(TV MPTCICMPTCICMPTCIC −+−= R3=20kΩ 2G)](TV[4V R3R2 MPTCIC −×−= R31)(GR2 R3R2 R31G R3R1 −−× Negative Coefficient VTMO(TL) = 0.1V, VTMO(TU) = 3.9V )(TV)(TV )(TV)(TV ∆VG LNTCICUNTCIC LTMOUTMO NTCIC TMO −== R4G = G R4R3 = R4 =20kΩ ~ 200kΩ )(T)(T )(T LNTCICUNTCIC MNTCIC VVV R2R1 R24V)(TVR4R3 R3)](TV[2V MNTCIC MNTCIC ×=++ R2=10k 10)(TV2 G)(140R1 MNTCIC +×=
Copyrights 2000-2022, Analog Technologies, Inc. All Rights Reserved. Updated on 6/14/2022 Email: staff@analogti.com/sales@analogti.com 11 Analog Technologies AT8551/AT8552 Zero-Drift RRIO CMOS Operational AmplifierAn Analog in Silicon Valleys RTD e.g. R0 = 1kΩ When T = 10°C, RTD(10) = 1.0385kΩ When T = 40°C, RTD(40) = 1.154kΩ Choose R1 A. P RTD≤1mW, RTD = 1000Ω PRTD = (IRTD)2×1000Ω = 0.001W IRTD = 1mA = TDR+R1 4VR 1k+R1
4 R1=3kΩ
B. PRTD≤1mW, RTD = 100Ω PRTD = (IRTD)2×100Ω = 0.001W IRTD = 3.16mA = TDR+R1 4VR 0.1k+R1 R1=1.15kΩ VTMO = R4×4 R3×R2 R3)(R2×R41×R+R1 R×4 TD TD − ++ I. When T = 10°C, R1 = 3kΩ, RTD(TL) = 1.0385kΩ, 0.93 = R3×R2 When T = 40°C, R1 = 3kΩ, RTD(TU) = 1.154kΩ, 2.79 = R3×R2 II. When T = 10°C, R1 = 1.15kΩ, RTD(TL) = 1.0385kΩ, 1.8 = R3×R2 1.9R2)(2.1R3×R4 − When T = 40°C, R1 = 1.15kΩ, RTD(TU) = 1.154kΩ, 1.9 = R3×R2 R3)(R2×R4×2 − To achieve the required V TMO outputs at the three different setting point temperatures in the Temperature Network, use the equation: When T = LOW, RTD = RTD L, TMO = 0.1V, V1 = V1L When T = HIGH, RTD = RTD H, TMO = 4.0V, V 1 = V1H ∆TMO = 4V - 0.1V = 3.9V ∆V1 = V1H - V1L R3×R2 R3)(R2×R41∆V1 ∆TMOG ++== e.g. R0 = 1kΩ RTDR1 RTD4.096VV1 +×= V1L = 0.5V L L RTDV 4.096VRTDR1 −×= R2 = R1, R3 = RTDL () R3R2 R3R21GR4 + ××−= For example, setting the hi gh set-point temperature at 60°C and the low set-point temperature at 0°C.Use RTD = R RTDL = RTD(10°C) = 1.0kΩ RTDH = RTD(60°C) = 1.231kΩ R1 = 7.192kΩ R2 = R1 = 7.192kΩ R3 = RTDL = 1.0kΩ，R4 = 32.308kΩ
Copyrights 2000-2022, Analog Technologies, Inc. All Rights Reserved. Updated on 6/14/2022 Email: staff@analogti.com/sales@analogti.com 12 Analog Technologies AT8551/AT8552 Zero-Drift RRIO CMOS Operational AmplifierAn Analog in Silicon Valleys OUTLINE DIMENSIONS MSOP-8 Symbol Dimensions In Millimeters Dimensions In Inches Min. Max. Min. Max. A 0.820 1.100 0.032 0.043 A1 0.020 0.150 0.001 0.006 A2 0.750 0.950 0.030 0.037 b 0.250 0.380 0.010 0.015 c 0.090 0.230 0.004 0.009 D 2.900 3.100 0.114 0.122 e 0.650(BSC) 0.026(BSC) E 2.900 3.100 0.114 0.122 E1 4.750 5.050 0.187 0.199 L 0.400 0.800 0.016 0.031 θ 0° 6° 0° 6°
Copyrights 2000-2022, Analog Technologies, Inc. All Rights Reserved. Updated on 6/14/2022 Email: staff@analogti.com/sales@analogti.com 13 Analog Technologies AT8551/AT8552 Zero-Drift RRIO CMOS Operational AmplifierAn Analog in Silicon Valleys SOT23-5 Symbol Dimensions In Millimeters Dimensions In Inches Min. Max. Min. Max. A 1.050 1.250 0.041 0.049 A1 0.000 0.100 0.000 0.004 A2 1.050 1.150 0.041 0.045 b 0.300 0.500 0.012 0.020 c 0.100 0.200 0.004 0.008 D 2.820 3.020 0.111 0.119 E 1.500 1.700 0.059 0.067 E1 2.650 2.950 0.104 0.116 e 0.950(BSC) 0.037(BSC) e1 1.800 2.000 0.071 0.079 L 0.300 0.600 0.012 0.024 θ 0° 8° 0° 8°
Copyrights 2000-2022, Analog Technologies, Inc. All Rights Reserved. Updated on 6/14/2022 Email: staff@analogti.com/sales@analogti.com 14 Analog Technologies AT8551/AT8552 Zero-Drift RRIO CMOS Operational AmplifierAn Analog in Silicon Valleys SOIC-8 Symbol Dimensions In Millimeters Dimensions In Inches Min. Max. Min. Max. A 1.350 1.750 0.063 0.069 A1 0.100 0.250 0.004 0.010 A2 1.350 1.550 0.053 0.061 b 0.330 0.510 0.013 0.020 c 0.170 0.250 0.007 0.010 D 4.800 5.000 0.189 0.197 e 1.270(BSC) 0.050(BSC) E 5.800 6.200 0.228 0.244 E1 3.800 4.000 0.150 0.157 L 0.400 1.270 0.016 0.050 θ 0° 8° 0° 8°
Copyrights 2000-2022, Analog Technologies, Inc. All Rights Reserved. Updated on 6/14/2022 Email: staff@analogti.com/sales@analogti.com 15 Analog Technologies AT8551/AT8552 Zero-Drift RRIO CMOS Operational AmplifierAn Analog in Silicon Valleys PACKAGING INFORMATION Orderable Device Op Temp (°C) Package Type Package Drawing Package Qty AT8551/TR -40 ~125 SOT23-5 8551 Reel,3000 AT8551/SR -40 ~ 125 SOIC-8 8552 Reel,2500 AT8551/MR -40 ~ 125 MSOP-8 8552 Reel,3000
ORDERING INFORMATION
Quantity 1~9pcs 10~29pcs 30~99pcs 100~499pcs 500~999pcs 1000~5999pcs ≥6000pcs NOTICE 1. ATI warrants performance of its produc ts for one year to the specifications applicable at the time of sale, except for those being damaged by excessive abuse. Products found not meeting the specifications within one year from the date of sale can be exchanged free of charge. 2. ATI reserves the right to make changes to its products or to discontinue any product or service without notice, and advise customers to obtain the latest version of rele vant information to verify, before placing orders, that the information being relied on is current and complete. 3. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgment, including those pertaining to warranty, patent infringement, and limitation of liability. Testing and other quality control techniques are utilized to the extent ATI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements. 4. Customers are responsible for their applications using ATI products. In order to minimize risks associated with the customers’ applications, adequate design and operating safeguards must be provided by the customers to minimize inherent or procedural hazards. ATI assumes no liability for applications assistance or customer product design. 5. ATI does not warrant or represent that any license, eith er express or implied, is granted under any patent right, copyright, mask work right, or other intellectu al property right of ATI covering or relating to any combination, machine, or process in which such products or services might be or are used. ATI’s publication of information regarding any third party’s products or ser vices does not constitute ATI’s approval, warranty or endorsement thereof. 6. IP (Intellectual Property) Ownership: ATI retains the ow nership of full rights for special technologies and/or techniques embedded in its products, the designs for me chanics, optics, plus all modifications, improvements, and inventions made by ATI for its products and/or projects.