LM321AH中文资料PDF规格书
LM321AH规格书详情
General Description
The LM221 series are precision preamplifiers designed to
operate with general purpose operational amplifiers to drastically decrease dc errors. Drift, bias current, common mode
and supply rejection are more than a factor of 50 better than
standard op amps alone. Further, the added dc gain of the
LM221 decreases the closed loop gain error.
The LM221 series operates with supply voltages from g3V
to g20V and has sufficient supply rejection to operate from
unregulated supplies. The operating current is programmable from 5 mA to 200 mA so bias current, offset current, gain
and noise can be optimized for the particular application
while still realizing very low drift. Super-gain transistors are
used for the input stage so input error currents are lower
than conventional amplifiers at the same operating current.
Further, the initial offset voltage is easily nulled to zero.
The extremely low drift of the LM221 will improve accuracy
on almost any precision dc circuit. For example, instrumentation amplifier, strain gauge amplifiers and thermocouple
amplifiers now using chopper amplifiers can be made with
the LM221. The full differential input and high commonmode rejection are another advantage over choppers. For
applications where low bias current is more important than
drift, the operating current can be reduced to low values.
High operating currents can be used for low voltage noise
with low source resistance. The programmable operating
current of the LM221 allows tailoring the input characteristics to match those of specialized op amps.
The LM221 is specified over a b25§C to a85§C range and
the LM321 over a 0§C to a70§C temperature range.
Features
- Guaranteed drift of LM321AÐ0.2 mV/§C
- Guaranteed drift of LM221 seriesÐ1 mV/§C
- Offset voltage less than 0.4 mV
- Bias current less than 10 nA at 10 mA operating current
- CMRR 126 dB minimum
- 120 dB supply rejection
- Easily nulled offset voltage
产品属性
- 型号:
LM321AH
- 制造商:
NSC
- 制造商全称:
National Semiconductor
- 功能描述:
LM221/LM321 Precision Preamplifiers
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
NS |
2020+ |
CAN8 |
80000 |
只做自己库存,全新原装进口正品假一赔百,可开13%增 |
询价 | ||
3PEAK |
21+ |
SOT23-5 |
60000 |
一级代理,专注军工、汽车、医疗、工业、新能源、电力 |
询价 | ||
3PEAK/思瑞浦 |
23+ |
SOT23-5 |
63225 |
绝对原厂原装,长期优势可定货 |
询价 | ||
3PEAK |
22+ |
SOT23-5 |
15000 |
只做原装正品现货 欢迎来电查询15919825718 |
询价 | ||
3PEAK |
2234+ |
SOT23-5 |
25134 |
一级代理/分销渠道价格优势 十年芯程一路只做原装正品 |
询价 | ||
NS |
2138+ |
CAN |
8960 |
专营军工产品,进口原装 |
询价 | ||
3PEAK/思瑞浦 |
SOT-23-5 |
56000 |
全新原装进口,假一罚十 |
询价 | |||
3PEAK |
2023+ |
SOT23 |
53068 |
16余年资质 绝对原盒原盘 更多数量 |
询价 | ||
NS |
CAN |
8650 |
一级代理 原装正品假一罚十价格优势长期供货 |
询价 | |||
3PEARK |
23+ |
SMD |
12000 |
只做原装可追溯原厂优势可订货 |
询价 |