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LMP7721中文资料
LMP7721数据手册规格书PDF详情
1 Features
1• Unless Otherwise Noted, Typical Values at TA =
25°C, V S = 5 V.
• Input Bias Current (VCM = 1 V)
– Maximum at 25°C ±20 fA
– Maximum at 85°C ±900 fA
• Offset Voltage ±26 μV
• Offset Voltage Drift −1.5 μV/°C
• DC Open-Loop Gain 120 dB
• DC CMRR 100 dB
• Input Voltage Noise (at f = 1 kHz) 6.5 nV/√Hz
• THD 0.0007%
• Supply Current 1.3 mA
• GBW 17 MHz battery•
Slew Rate (Falling Edge) 12.76 V/μs
• Supply Voltage 1.8 V to 5.5 V
• Operating Temperature Range −40°C to 125°C
• 8-Pin SOIC
2 Applications
• Photodiode Amplifier
• High Impedance Sensor Amplifier
• Ion Chamber Amplifier
• Electrometer Amplifier
• pH Electrode Amplifier
• Transimpedance Amplifier
3 Description
The LMP7721 is the industry’s lowest specified input
bias current precision amplifier. The ultra-low input
bias current is 3 fA, with a specified limit of ±20 fA at
25°C and ±900 fA at 85°C. This is achieved with the
latest patent-pending technology of input bias current
cancellation amplifier circuitry. This technology also
maintains the ultra-low input bias current over the entire input common-mode voltage range of the
amplifier.
Other outstanding features, such as low voltage noise
(6.5 nV/√Hz), low DC-offset voltage (±150 μV
maximum at 25°C) and low-offset voltage
temperature coefficient (−1.5 μV/°C), improve system sensitivity and accuracy in high-precision
applications. With a supply voltage range of 1.8 V to
5.5 V, the LMP7721 is the ideal choice for battery•
operated, portable applications. The LMP7721 is part
of the LMP™ precision amplifier family.
As part of Texas Instruments' PowerWise™ products, the LMP7721 provides the remarkably wide-gain
bandwidth product (GBW) of 17 MHz while
consuming only 1.3 mA of current. This wide GBW
along with the high open-loop gain of 120 dB enables
accurate signal conditioning. With these
specifications, the LMP7721 has the performance to
excel in a wide variety of applications such as
electrochemical cell amplifiers and sensor interface
circuits.
The LMP7721 is offered in an 8-pin SOIC package
with a special pinout that isolates the amplifier’s input
from the power supply and output pins. With proper
board layout techniques, the unique pinout of the
LMP7721 will prevent PCB leakage current from
reaching the input pins. Thus system error will be
further reduced.
LMP7721产品属性
- 类型
描述
- 型号
LMP7721
- 制造商
NSC
- 制造商全称
National Semiconductor
- 功能描述
3 Femtoampere Input Bias Current Precision Amplifier
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
NS |
25+ |
SOP8 |
550 |
百分百原装正品 真实公司现货库存 本公司只做原装 可 |
|||
TI |
21+ |
SOP-8 |
17500 |
只做原装正品!现货库存!可开13点增值税票 |
|||
24+ |
SOP8 |
6000 |
美国德州仪器TEXASINSTRUMENTS原厂代理辉华拓展内地现 |
||||
24+ |
N/A |
2500 |
爱立购只做原装,样品支持终端工厂 |
||||
TI(德州仪器) |
24+ |
标准封装 |
7068 |
原厂直销,大量现货库存,交期快。价格优,支持账期 |
|||
TI |
24+ |
SOIC8 |
5630 |
TI一级代理原厂授权渠道实单支持 |
|||
TI |
SOIC8 |
56371 |
提供BOM表配单 |
||||
TI |
15+ |
SOIC8 |
32500 |
全新原装现货供应2 |
|||
TI/德州仪器 |
23+ |
SOIC8 |
18204 |
原装正品代理渠道价格优势 |
|||
NS |
2021+ |
SOP8 |
9450 |
原装现货。 |
LMP7721MAEVALMF/NOPB 价格
参考价格:¥1034.9167
LMP7721 资料下载更多...
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