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CD8551
Precision OpAmps
Single power supply, low power consumption, zero drift, single channel operational amplifier
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Description
CD855X series products include: CD8551, CD8552, CD8554.The CD855X amplifier is single/dual/quad channel amplifiers. These products are micro-power, zero-drift CMOS operational amplifiers, the amplifiers offer bandwidth of 5MHz, rail-to-rail inputs and outputs,and single-supply operation from 2.7V to 5.5V. CD855X uses chopper stabilized technique to provide very low offset voltage (1µV typ) and near zero drift over temperature. Low quiescent supply current of 640µA per amplifier and very low input offset voltage, low bias current of 50pA make the devices an ideal choice for low offset, low power consumption and high impedance applications.
The CD855X offers excellent CMRR without the crossover associated with traditional complementary input stages. This design results in superior performance for driving analog-to-digital converters (ADC) without degradation of differential linearity. The CD8551 is available in SOT23-5 and SOP-8 packages. And the CD8552 is available in MSOP-8,SOP-8 and TSSOP8 packages. The CD8554 Quad is available in Green SOP-14 and TSSOP-14 packages. The extended temperature range of -40℃ to +125℃ over all supply voltages offers additional design flexibility

  • Channel: 1 
  • Low offset voltage: 5 uV
  • Input Bias Current :50 pA
  • Voltage Noise Density :35 nV/sqrt Hz
  • Supply: 2.7 V to 5.5 V
  • Gain-Bandwidth Product : 4.5 MHz
  • Slew Rate :2.7 V/μs
  • Common-Mode Rejection Ratio :130 dB
  • Output type :Rail-to-Rail


  • Single-Supply Operation from +2.7V~+5.5V

  • Rail-to-Rail Input / Output

  • Gain-Bandwidth Product: 5MHz(Typ.@25°C)

  • Low Input Bias Current: 50pA (Typ.@25°C)

  • Low Offset Voltage: 1µV (Typ. @25°C)

  • Quiescent Current: 640µA per Amplifier(Typ)

  • Operating Temperature: -40°C~+125°C

  • Input Offset Drift: 0.005μV/°C

  • High Gain,CMRR,PSRR:130dB

  • High Slew Rate: 1.9V/μs

  • Low Noise: 0.75μVp-p (0.01Hz~10Hz)


  • Battery-Powered Instrumentation

  • Active Filtering

  • Weight Scale Sensor

  • Temperature Sensors

  • Medical/Industrial Instrumentation

  • Pressure Sensors

  • Strain Gage Amplifiers

  • Power Converter/Inverter


Parameters
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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
CD8551AS8
CD855X 系列产品包括：CD8551，CD8552，CD8554。CD855X 系列放大器分别是单/双/四路运算放大器。CD855X 系列产品是具有微功耗、零漂移特性的COMS运算放大器，该放大器提供4.5MHz带宽，轨至轨输入输出和单电源供电，供电范围从 2.7V 到 5.5V。CD855X 系列产品使用斩波稳定技术提供低失调电压 1µV（典型值）、超过工作温度时接近零漂移。其每个放大器 640µA 的低静态电源电流和低至 1µV 的输入失调电压以及50 pA的输入偏置电流，是满足低偏移、低功耗、高
Datasheet
PackageSOP-8
Channel 1
Supply Voltage (Min)(V) 5
Supply Voltage (Max) (V) 0.005
Offset Voltage (Max@25°C) (mV) 50
Iq/ Amp Typ (μA) 0.75
IB Typ(pA) In,Out
Rail-to-Rail I/O 2.7
ENOISE Typ@1kHz (nV/√Hz) 5.5
TC of Vos Typ(μV/°C) 4.5
GBW Typ(MHz) 2.7
Slew Rate Typ (V/μs) 640
Aol Typ(dB) EMI Hardened
CMRR Typ(dB) 35
In Noise (μVpp) 130
Additional Feature 130
Temp Range(°C) -40 to 125
Open
CD8551AMS8
CD855X 系列产品包括：CD8551，CD8552，CD8554。CD855X 系列放大器分别是单/双/四路运算放大器。CD855X 系列产品是具有微功耗、零漂移特性的COMS运算放大器，该放大器提供4.5MHz带宽，轨至轨输入输出和单电源供电，供电范围从 2.7V 到 5.5V。CD855X 系列产品使用斩波稳定技术提供低失调电压 1µV（典型值）、超过工作温度时接近零漂移。其每个放大器 640µA 的低静态电源电流和低至 1µV 的输入失调电压以及50 pA的输入偏置电流，是满足低偏移、低功耗、高
Datasheet
PackageMSOP-8
Channel 1
Supply Voltage (Min)(V) 5
Supply Voltage (Max) (V) 0.005
Offset Voltage (Max@25°C) (mV) 50
Iq/ Amp Typ (μA) 0.75
IB Typ(pA) In,Out
Rail-to-Rail I/O 2.7
ENOISE Typ@1kHz (nV/√Hz) 5.5
TC of Vos Typ(μV/°C) 4.5
GBW Typ(MHz) 2.7
Slew Rate Typ (V/μs) 640
Aol Typ(dB) EMI Hardened
CMRR Typ(dB) 35
In Noise (μVpp) 130
Additional Feature 130
Temp Range(°C) -40 to 125
Open
CD8551AST5
CD855X 系列产品包括：CD8551，CD8552，CD8554。CD855X 系列放大器分别是单/双/四路运算放大器。CD855X 系列产品是具有微功耗、零漂移特性的COMS运算放大器，该放大器提供4.5MHz带宽，轨至轨输入输出和单电源供电，供电范围从 2.7V 到 5.5V。CD855X 系列产品使用斩波稳定技术提供低失调电压 1µV（典型值）、超过工作温度时接近零漂移。其每个放大器 640µA 的低静态电源电流和低至 1µV 的输入失调电压以及50 pA的输入偏置电流，是满足低偏移、低功耗、高
Datasheet
PackageSOT23-5
Channel 1
Supply Voltage (Min)(V) 5
Supply Voltage (Max) (V) 0.005
Offset Voltage (Max@25°C) (mV) 50
Iq/ Amp Typ (μA) 0.75
IB Typ(pA) In,Out
Rail-to-Rail I/O 2.7
ENOISE Typ@1kHz (nV/√Hz) 5.5
TC of Vos Typ(μV/°C) 4.5
GBW Typ(MHz) 2.7
Slew Rate Typ (V/μs) 640
Aol Typ(dB) EMI Hardened
CMRR Typ(dB) 35
In Noise (μVpp) 130
Additional Feature 130
Temp Range(°C) -40 to 125
Open
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