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CD8521
Precision OpAmps
60 µ A, low-power, zero drift CMOS single channel precision operational amplifier
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Description
The CD8521,CD8522, CD8523, CD8524(dual version & shutdown) series of CMOS operational amplifiers use auto-zero techniques to simultaneously provide very low offset voltage (5μV max) and near-zero drift over time and temperature. This family of amplifiers has ultralow noise, offset and power. 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 350KHz and slew rate of 0.17V/μs. Single or dual supplies as low as +2.5V(±1.25V) and up to +5.5V (±2.75V) may be used. The CD8521, CD8522, CD8523, CD8524 (dual version with shutdown) are specified for the extended industrial and automotive temperature range (-40°C to 125°C). The CD8521 single amplifier is available in 5-lead SOT23, 8-lead MSOP8 and 8-lead SOIC packages, The CD8522 dual amplifier is available in 8-lead SOIC and 8-lead TSSOP narrow surface mount packages, The CD8523(dual version with shutdown) comes in Micro-SIZE MSOP-10. The CD8524 quad is available in 14-lead SOIC and 14- lead narrow TSSOP packages.
  • Channel:1 
  • Offset Voltage : 1 uV
  • Input Bias Current:10 pA
  • Input Voltage Noise Density:140 nV/sqrt Hz
  • Supply: 2.5 V to 5.5 V
  • Gain Bandwidth Product: 0.35MHz
  • Slew Rate:0.17 V/μs
  • Common-Mode Rejection Ratio:130 dB
  • Output type: Rail-to-Rail
  • Low Offset Voltage: 1uV
  • Input Offset Drift: 0.005μV/°C
  • High Gain Bandwidth Product: 350KHz
  • Rail-to-Rail Input and Output
  • High Gain, CMRR, PSRR:130dB
  • High Slew Rate: 0.17V/μs
  • Low Noise: 3.2uVp-p (0.01~10Hz)
  • Low Power Consumption: 60μA /op amp
  • Overload Recovery Time:6us
  • Low Supply Voltage: +2.5 V to +5.5 V
  • No External Capacitors Required
  • Extended Temperature: -40°C to +125°C


  • Temperature Sensors
  • Medical/Industrial Instrumentation
  • Pressure Sensors
  • Battery-Powered Instrumentation
  • Active Filtering
  • Weight Scale Sensor
  • Strain Gage Amplifiers
  • Power Converter/Inverter


Parameters
MALL MALL

Part Number
Package
Channel
Supply Voltage (Min)(V)
Supply Voltage (Max) (V)
Offset Voltage (Max@25°C) (mV)
Iq/ Amp Typ (μA)
IB Typ(pA)
Rail-to-Rail I/O
ENOISE Typ@1kHz (nV/√Hz)
TC of Vos Typ(μV/°C)
GBW Typ(MHz)
Slew Rate Typ (V/μs)
Aol Typ(dB)
CMRR Typ(dB)
In Noise (μVpp)
Additional Feature
Temp Range(°C)
Open
CD8521AS8
CD8521，CD8522，CD8523，CD8524 （双电源供电，可完全关断）系列型号的 CMOS 运算放大器使用自动调零技术同步提供极低的失调电压（最大为 5μV），超温超时使用时接近于零漂移。该系列放大器具有超低的噪音、失调和功率。这种微型、高精度运算放大器具有高偏移输入阻抗，轨至轨输入和轨至轨输出摆幅，还具有 0.35MHz 的高增益带宽积和 0.17V/μs 的转换速率。 使用最低+2.5V (±1.15V)，最高+5.5V (±2.75V) 的单电源或双电源。CD8521，CD8522，CD
Datasheet
PackageSOP-8
Channel 1
Supply Voltage (Min)(V) 5
Supply Voltage (Max) (V) 0.005
Offset Voltage (Max@25°C) (mV) 10
Iq/ Amp Typ (μA) 3.2
IB Typ(pA) In,Out
Rail-to-Rail I/O 2.3
ENOISE Typ@1kHz (nV/√Hz) 5.5
TC of Vos Typ(μV/°C) 0.35
GBW Typ(MHz) 0.17
Slew Rate Typ (V/μs) 60
Aol Typ(dB) EMI Hardened
CMRR Typ(dB) 140
In Noise (μVpp) 130
Additional Feature 130
Temp Range(°C) -40 to 125
Open
CD8521AMS8
CD8521，CD8522，CD8523，CD8524 （双电源供电，可完全关断）系列型号的 CMOS 运算放大器使用自动调零技术同步提供极低的失调电压（最大为 5μV），超温超时使用时接近于零漂移。该系列放大器具有超低的噪音、失调和功率。这种微型、高精度运算放大器具有高偏移输入阻抗，轨至轨输入和轨至轨输出摆幅，还具有 0.35MHz 的高增益带宽积和 0.17V/μs 的转换速率。 使用最低+2.5V (±1.15V)，最高+5.5V (±2.75V) 的单电源或双电源。CD8521，CD8522，CD
Datasheet
PackageMSOP-8
Channel 1
Supply Voltage (Min)(V) 5
Supply Voltage (Max) (V) 0.005
Offset Voltage (Max@25°C) (mV) 10
Iq/ Amp Typ (μA) 3.2
IB Typ(pA) In,Out
Rail-to-Rail I/O 2.3
ENOISE Typ@1kHz (nV/√Hz) 5.5
TC of Vos Typ(μV/°C) 0.35
GBW Typ(MHz) 0.17
Slew Rate Typ (V/μs) 60
Aol Typ(dB) EMI Hardened
CMRR Typ(dB) 140
In Noise (μVpp) 130
Additional Feature 130
Temp Range(°C) -40 to 125
Open
CD8521AST5
CD8521，CD8522，CD8523，CD8524 （双电源供电，可完全关断）系列型号的 CMOS 运算放大器使用自动调零技术同步提供极低的失调电压（最大为 5μV），超温超时使用时接近于零漂移。该系列放大器具有超低的噪音、失调和功率。这种微型、高精度运算放大器具有高偏移输入阻抗，轨至轨输入和轨至轨输出摆幅，还具有 0.35MHz 的高增益带宽积和 0.17V/μs 的转换速率。 使用最低+2.5V (±1.15V)，最高+5.5V (±2.75V) 的单电源或双电源。CD8521，CD8522，CD
Datasheet
PackageSOT23-5
Channel 1
Supply Voltage (Min)(V) 5
Supply Voltage (Max) (V) 0.005
Offset Voltage (Max@25°C) (mV) 10
Iq/ Amp Typ (μA) 3.2
IB Typ(pA) In,Out
Rail-to-Rail I/O 2.3
ENOISE Typ@1kHz (nV/√Hz) 5.5
TC of Vos Typ(μV/°C) 0.35
GBW Typ(MHz) 0.17
Slew Rate Typ (V/μs) 60
Aol Typ(dB) EMI Hardened
CMRR Typ(dB) 140
In Noise (μVpp) 130
Additional Feature 130
Temp Range(°C) -40 to 125
Open
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