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LT1990AIS8#PBF

更新时间： 2024-11-04 13:09:39

品牌	Logo	应用领域
凌特 - Linear		运算放大器放大器电路光电二极管
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16页	223K
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LT1990AIS8#PBF 数据手册

LT1990

±250V Input Range

G = 1, 10, Micropower,

Difference Amplifier

DESCRIPTIO

APPLICATIO S

The LT^®1990 is a micropower precision difference ampli-

fier with a very high common mode input voltage range. It

has pin selectable gains of 1 or 10. The LT1990 operates

over a ±250V common mode voltage range on a ±15V

supply. The inputs are fault protected from common

mode voltage transients up to ±350V and differential

voltagesupto±500V.TheLT1990isideallysuitedforboth

high side and low side current or voltage monitoring.

■

Pin Selectable Gain of 1 or 10

■

High Common Mode Voltage Range:

85V Window (V_S= 5V, 0V)

±250V (V_S= ±15V)

Common Mode Rejection Ratio: 70dB Min

Input Protection to ±350V

■

Gain Error: 0.28% Max

PSRR: 82dB Min

■

High Input Impedance: 2MΩ Differential,

On a single 5V supply, the LT1990 has an adjustable 85V

input range, 70dB min CMRR and draws less than 120µA

supply current. The rail-to-rail output maximizes the dy-

namic range, especially important for single supplies as

low as 2.7V.

500kΩ Common Mode

■

Micropower: 120µA Max Supply Current

■

Wide Supply Range: 2.7V to 36V

–3dB Bandwidth: 100kHz

Rail-to-Rail Output

8-Pin SO Package

■

The LT1990 is specified for single 3V, 5V and ±15V

suppliesoverbothcommercialandindustrialtemperature

ranges. The LT1990 is available in the 8-pin SO package.

FEATURES

■

, LTC and LT are registered trademarks of Linear Technology Corporation.

Battery Cell Voltage Monitoring

High Voltage Current Sensing

Signal Acquisition in Noisy Environments

Input Protection

Fault Protected Front Ends

Level Sensing

Isolation

■

TYPICAL APPLICATIO

Full-Bridge Load Current Monitor

SOURCE

LT1990

900k

10k

100k

–

OUT

–

REF

= 1.5V

1nF

10k

OUT

LT6650

GND FB

54.9k

40k

900k

100k

40k

20k

–12V ≤ V ≤ 73V

OUT

1990 TA01

= V ± (10 • I • R )

REF L S

1µF

1990f

12 3 4 5 6 7...16

中文翻译

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LT1990AIS8#PBF 替代型号

型号	品牌	替代类型	描述	数据表
LT1990AIS8#TRPBF	Linear	类似代替	LT1990 - ±250V Input Range G = 1, 10, Micropo
LT1990ACS8#PBF	Linear	类似代替	LT1990 - ±250V Input Range G = 1, 10, Micropo
LT1990AHS8	Linear	功能相似	LT1990 - ±250V Input Range G = 1, 10, Micropo

与LT1990AIS8#PBF相关器件

型号	品牌	获取价格	描述	数据表
LT1990AIS8#TR	Linear	获取价格	LT1990 - ±250V Input Range G = 1, 10, Micropo
LT1990AIS8#TRPBF	Linear	获取价格	LT1990 - ±250V Input Range G = 1, 10, Micropo
LT1990CS8	Linear	获取价格	250V Input Range G = 1, 10, Micropower, Difference Amplifier
LT1990HS8	Linear	获取价格	LT1990 - ±250V Input Range G = 1, 10, Micropo
LT1990HS8#PBF	Linear	获取价格	LT1990 - ±250V Input Range G = 1, 10, Micropo
LT1990HS8#TR	Linear	获取价格	LT1990 - ±250V Input Range G = 1, 10, Micropo
LT1990HS8#TRPBF	Linear	获取价格	LT1990 - ±250V Input Range G = 1, 10, Micropo
LT1990IS8	Linear	获取价格	250V Input Range G = 1, 10, Micropower, Difference Amplifier
LT1990IS8#TR	Linear	获取价格	LT1990 - ±250V Input Range G = 1, 10, Micropo
LT1991	Linear Systems	获取价格	Precision, 100UA Gain Selectable Amplifier

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