超低输入电流放大器 - LMC6001

LMC6001 (正在供货)

超低输入电流放大器

 

备选器件推荐

  • LMP7701  -  Higher Bandwidth, Lower Voltage Offset, Better CMRR
  • LMP7721  -  Lower Input Current

Other devices and data sheet

Other device variants can also be found in the  LMC6001-MIL product page

描述

Featuring 100% tested input currents of 25 fA maximum, low operating power, and ESD protection of 2000 V, the LMC6001 device achieves a new industry benchmark for low input current operational amplifiers. By tightly controlling the molding compound, Texas Instruments is able to offer this ultra-low input current in a lower cost molded package.

To avoid long turnon settling times common in other low input current op amps, the LMC6001A is tested three times in the first minute of operation. Even units that meet the 25-fA limit are rejected if they drift.

Because of the ultra-low input current noise of 0.13 fA/√Hz, the LMC6001 can provide almost noiseless amplification of high resistance signal sources. Adding only 1 dB at 100 kΩ, 0.1 dB at 1 MΩ and 0.01 dB or less from 10 MΩ to 2,000 MΩ, the LMC6001 is an almost noiseless amplifier.

The LMC6001 is ideally suited for electrometer applications requiring ultra-low input leakage such as sensitive photodetection transimpedance amplifiers and sensor amplifiers. Because input referred noise is only 22 nV/√Hz, the LMC6001 can achieve higher signal to noise ratio than JFET input type electrometer amplifiers. Other applications of the LMC6001 include long interval integrators, ultra-high input impedance instrumentation amplifiers, and sensitive electrical-field measurement circuits.

特性

  • (Maximum Limit, 25°C Unless Otherwise Noted)
  • Input Current (100% Tested): 25 fA
  • Input Current Over Temperature: 2 pA
  • Low Power: 750 µA
  • Low VOS: 350 µV
  • Low Noise: 22 nV/√Hz at 1 kHz Typical

查看更多内容

参数 与其它产品相比 精密 运算放大器

 
Number of Channels (#)
Total Supply Voltage (Min) (+5V=5, +/-5V=10)
Total Supply Voltage (Max) (+5V=5, +/-5V=10)
GBW (Typ) (MHz)
Slew Rate (Typ) (V/us)
Rail-to-Rail
Vos (Offset Voltage @ 25C) (Max) (mV)
Offset Drift (Typ) (uV/C)
Iq per channel (Typ) (mA)
Vn at 1kHz (Typ) (nV/rtHz)
CMRR (Typ) (dB)
Rating
Operating Temperature Range (C)
Package Group
Package Size: mm2:W x L (PKG)
Input Bias Current (Max) (pA)
Output Current (Typ) (mA)
Features
Architecture
LMC6001
1   
4.5   
15.5   
1.3   
1.5   
In to V-
Out   
0.35   
2.5   
0.45   
22   
83   
Catalog   
-40 to 85   
PDIP   
See datasheet (PDIP)   
0.025   
21   
N/A   
CMOS   

特色工具和软件

WEBENCH® Designer LMC6001

Amplifier Topology
 Non-inverting
 Inverting
Desired Power Supply Voltage
Positive Supply (Vcc):  V
Negative Supply (Vee):  V
Allowed Power Supply(Vcc-Vee) = 4.5 to 15.5 V
Desired Input and Output Requirements
  Min Max
Vin  V  V
Vout  V  V
Minimum Temperature = -40.0 °C
Maximum Temperature = 85.0 °C