LM331

更新时间： 2024-11-12 12:46:31

品牌	Logo	应用领域
德州仪器 - TI		转换器
页数	文件大小	规格书
20页	778K
描述
LM231A/LM231/LM331A/LM331 Precision Voltage-to-Frequency Converters

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LM331 数据手册

LM231, LM331

www.ti.com

SNOSBI2B –JUNE 1999–REVISED MARCH 2013

LM231A/LM231/LM331A/LM331 Precision Voltage-to-Frequency Converters

Check for Samples: LM231, LM331

FEATURES

DESCRIPTION

The LM231/LM331 family of voltage-to-frequency

converters are ideally suited for use in simple low-

cost circuits for analog-to-digital conversion, precision

•

Ensured Linearity 0.01% max

•

Improved Performance in Existing Voltage-to-

Frequency Conversion Applications

frequency-to-voltage

integration, linear

conversion,

frequency modulation

long-term

•

Split or Single Supply Operation

demodulation, and many other functions. The output

when used as a voltage-to-frequency converter is a

pulse train at a frequency precisely proportional to the

applied input voltage. Thus, it provides all the

inherent advantages of the voltage-to-frequency

conversion techniques, and is easy to apply in all

standard voltage-to-frequency converter applications.

Further, the LM231A/LM331A attain a new high level

of accuracy versus temperature which could only be

Operates on Single 5V Supply

Pulse Output Compatible with All Logic Forms

Excellent Temperature Stability: ±50 ppm/°C

max

•

Low Power Consumption: 15 mW Typical at 5V

Wide Dynamic Range, 100 dB min at 10 kHz

Full Scale Frequency

•

Wide Range of Full Scale Frequency: 1 Hz to

100 kHz

attained

with

expensive

voltage-to-frequency

modules. Additionally the LM231/331 are ideally

suited for use in digital systems at low power supply

voltages and can provide low-cost analog-to-digital

conversion in microprocessor-controlled systems.

And, the frequency from a battery powered voltage-

to-frequency converter can be easily channeled

through a simple photo isolator to provide isolation

against high common mode levels.

Low Cost

The LM231/LM331 utilize

new temperature-

compensated band-gap reference circuit, to provide

excellent accuracy over the full operating temperature

range, at power supplies as low as 4.0V. The

precision timer circuit has low bias currents without

degrading the quick response necessary for 100 kHz

voltage-to-frequency conversion. And the output are

capable of driving 3 TTL loads, or a high voltage

output up to 40V, yet is short-circuit-proof against

V_CC

CONNECTION DIAGRAM

Figure 1. Plastic Dual-In-Line Package (PDIP)

See Package Number P (R-PDIP-T8)

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

Teflon is a registered trademark of E.

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...20

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与LM331相关器件

型号	品牌	获取价格	描述	数据表
LM3310	NSC	获取价格	Step-up PWM DC/DC Converter with Integrated Op-Amp and Gate Pulse Modulation Switch
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LM3310_07	NSC	获取价格	Step-Up PWM DC/DC Converter with Integrated Op-Amp and Gate Pulse Modulation Switch
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LM3310SQ/NOPB	NSC	获取价格	IC 2.6 A SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, QCC24, LLP-24, Switching Regula
LM3310SQ/NOPB	TI	获取价格	具有集成运算放大器和闸极脉冲调制开关的升压 PWM直流/直流转换器 \| RTW \| 24
LM3310SQX	NSC	获取价格	Step-up PWM DC/DC Converter with Integrated Op-Amp and Gate Pulse Modulation Switch
LM3311	NSC	获取价格	Step-Up PWM DC/DC Converter with Integrated LDO, Op-Amp, and Gate Pulse Modulation Switch
LM3311_07	NSC	获取价格	Step-Up PWM DC/DC Converter with Integrated LDO, Op-Amp, and Gate Pulse Modulation Switch
LM3311SQ	NSC	获取价格	Step-Up PWM DC/DC Converter with Integrated LDO, Op-Amp, and Gate Pulse Modulation Switch

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