LT1677 Low Noise, Rail-to-Rail Precision Op Amp

The LT1677 features the lowest noise performance available for a rail-to-rail operational amplifier: 3.2nV/rtHz wideband noise, 1/f corner frequency of 13Hz and 90nV peak-to-peak 0.1Hz to 10Hz noise. Low noise is combined with outstanding precision: 20µV offset voltage and 0.2µV/°C drift, 130dB common mode and power supply rejection and 7.2MHz gain bandwidth product. The common mode range exceeds the power supply by 100mV.

The voltage gain of the LT1677 is extremely high, 19 million (typical) driving a 10k load.

In the design, processing and testing of the device, particular attention has been paid to the optimization of the entire distribution of several key parameters. Consequently, the specifications have been spectacularly improved compared to competing rail-to-rail amplifiers

产品特点 Features

Rail-to-Rail Input and Output
100% Tested Low Voltage Noise:
3.2nV/rtHz Typ at 1kHz
4.5nV/rtHz Max at 1kHz
Offset Voltage: 60µV Max
Low VOS Drift: 0.2µV/°C Typ
Low Input Bias Current: 20nA Max
Wide Supply Range: 3V to ±18V
High AVOL: 7V/µV Min, RL = 10k
High CMRR: 109dB Min
High PSRR: 108dB Min
Gain Bandwidth Product: 7.2MHz
Slew Rate: 2.5V/µs
Operating Temperature Range: -40°C to 85°C

参数

应用

Low Noise Signal Processing
Microvolt Accuracy Threshold Detection
Strain Gauge Amplifiers
Tape Head Preamplifiers
Direct Coupled Audio Gain Stages
Infrared Detectors
Battery-Powered Microphones

典型应用图

LT1677 订购信息和价格参考Package Variations and Pricing

器件型号	封装	引脚	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量) *
LT1677CN8	PDIP	8	C	$2.60	$2.15
LT1677CN8#PBF	PDIP	8	C	$2.60	$2.15
LT1677CS8	SO	8	C	$2.60	$2.15
LT1677CS8#PBF	SO	8	C	$2.60	$2.15
LT1677CS8#TR	SO	8	C		$2.21
LT1677CS8#TRPBF	SO	8	C		$2.21
LT1677IN8	PDIP	8	I	$2.80	$2.35
LT1677IN8#PBF	PDIP	8	I	$2.80	$2.35
LT1677IS8	SO	8	I	$2.80	$2.35
LT1677IS8#PBF	SO	8	I	$2.80	$2.35
LT1677IS8#TR	SO	8	I		$2.41
LT1677IS8#TRPBF	SO	8	I		$2.41

LT1677 数据手册及相关资料下载

数据手册(英文) : LT1677 - Low Noise, Rail-to-Rail Precision Op Amp.PDF
设计要点 (英文) : DN230 - Rail-to-Rail Amplifiers Operate on 2.7V with 20µV Offset.PDF
可靠性数据 : R334 Reliability Data .PDF
LT Journal : May 2000 New Rail-to-Rail Output Op Amps Bring Precision Performance to Low Voltage Systems.PDF