OP497: 运算放大器

The OP497 is a quad op amp with precision performance in the space-saving, industry standard 16-lead SOlC package. Its combination of exceptional precision with low power and extremely low input bias current makes the quad OP497 useful in a wide variety of applications.

Precision performance of the OP497 includes very low offset (<50 μV) and low drift (<0.5 μV/°C). Open-loop gain exceeds 2000 V/mV ensuring high linearity in every application. Errors due to common-mode signals are eliminated by its common-mode rejection of >120 dB. The OP497 has a power supply rejection of >120 dB which minimizes offset voltage changes experienced in battery-powered systems. The supply current of the OP497 is <625 μA per amplifier, and it can operate with supply voltages as low as ±2 V

The OP497 uses a superbeta input stage with bias current cancellation to maintain picoamp bias currents at all temperatures. This is in contrast to FET input op amps whose bias currents start in the picoamp range at 25°C but double for every 10°C rise in temperature to reach the nanoamp range above 85°C. The input bias current of the OP497 is <100 pA at 25°C.

Combining precision, low power, and low bias current, the OP497 is ideal for a number of applications, including instrumentation amplifiers, log amplifiers, photodiode preamplifiers, and long-term integrators. For a single device, see the OP97 data sheet, and for a dual device, see the OP297 data sheet.

OP497 特点

• Low offset voltage: 75 μV maximum
• Low offset voltage drift: 1.0 μV/°C maximum
• Very low bias current
• 25°C: 150 pA maximum
• -40°C to +85°C: 300 pA maximum
• Very high open-loop gain: 2000 V/mV minimum
• Low supply current (per amplifier): 625 μA maximum
• Operates from ±2 V to ±20 V supplies
• High common-mode rejection: 114 dB minimum

OP497 功能框图

OP497 技术指标

-3dB Bandwidth	500kHz	Vcc-Vee Supply (V)	4 to 40
Slew Rate	150mV/us	Iq per Amplifier	625uA
Vos	80uV	# OpAmps per Pkg	4
Ib	60pA	Operating Temp Range	-55 to +125
Input Noise (nV/rtHz)	25nV/rtHz	Packages	DIP,LCC,SOIC

OP497 订购指南

产品型号	产品状态	封装	引脚	温度范围
5962-9452101M2A	量产	LCC:CER LEADLESS CHIP CARR	20	军用
OP497FP	量产	14 ld PDIP	14	工业
OP497FPZ	量产	14 ld PDIP	14	工业
OP497FS	量产	16 ld SOIC - Wide	16	工业
OP497FS-REEL	量产	16 ld SOIC - Wide	16	工业
OP497FSZ	量产	16 ld SOIC - Wide	16	工业
OP497FSZ-REEL	量产	16 ld SOIC - Wide	16	工业
OP497GP	量产	14 ld PDIP	14	工业
OP497GPZ	量产	14 ld PDIP	14	工业
OP497GS	量产	16 ld SOIC - Wide	16	工业
OP497GS-REEL	量产	16 ld SOIC - Wide	16	工业
OP497GSZ	量产	16 ld SOIC - Wide	16	工业
OP497GSZ-REEL	量产	16 ld SOIC - Wide	16	工业

EVAL-PRAOPAMP: Universal Precision Op Amp Evaluation Board

产品型号	产品状态	封装	引脚	温度范围
EVAL-PRAOPAMP-1KSZ	量产	评估板		商业
EVAL-PRAOPAMP-1RJZ	量产	评估板		商业
EVAL-PRAOPAMP-1RMZ	量产	评估板		商业
EVAL-PRAOPAMP-1RZ	量产	评估板		商业
EVAL-PRAOPAMP-2RMZ	量产	评估板		商业
EVAL-PRAOPAMP-2RZ	量产	评估板		商业
EVAL-PRAOPAMP-4RUZ	量产	评估板		商业
EVAL-PRAOPAMP-4RZ	量产	评估板		商业

OP497 应用技术支持与电子电路设计开发资源下载

1. 运算放大器系列OP497 数据手册DataSheet 下载 . PDF
2. ADI 模拟器件公司比较器产品选型指南 . PDF
3. Analog Devices, Inc. 美国模拟器件公司产品订购手册 .PDF