AD652JPZ

更新时间： 2024-11-26 12:48:43

品牌	Logo	应用领域
亚德诺 - ADI		转换器模拟特殊功能转换器 PC
页数	文件大小	规格书
28页	786K
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Monolithic Synchronous Voltage-to-Frequency Converter

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AD652JPZ 数据手册

Monolithic Synchronous

Voltage-to-Frequency Converter

AD652

The AD652 is available in five performance grades. The 20-lead

PLCC-packaged JP and KP grades are specified for operation

over the 0°C to +70°C commercial temperature range. The

16-lead CERDIP-packaged AQ and BQ grades are specified for

operation over the −40°C to +85°C industrial temperature

range. The AD652SQ is available for operation over the full

−55°C to +125°C extended temperature range.

FEATURES

Full-scale frequency (up to 2 MHz) set by external system

clock

Extremely low linearity error (0.005% max at 1 MHz FS,

0.02% max at 2 MHz FS)

No critical external components required

Accurate 5 V reference voltage

Low drift (25 ppm/°C max)

Dual- or single-supply operation

Voltage or current input

MIL-STD-883 compliant versions available

PRODUCT HIGHLIGHTS

1. The use of an external clock to set the full-scale frequency

allows the AD652 to achieve linearity and stability far

superior to other monolithic VFCs. By using the same clock

to drive the AD652 and set the counting period (through a

suitable divider), conversion accuracy is maintained

independent of variations in clock frequency.

PRODUCT DESCRIPTION

The AD652 synchronous voltage-to-frequency converter

(SVFC) is a powerful building block for precision analog-to-

digital conversion, offering typical nonlinearity of 0.002%

(0.005% maximum) at a 100 kHz output frequency. The inher-

ent monotonicity of the transfer function and wide range of

clock frequencies allow the conversion time and resolution to

be optimized for specific applications.

2. The AD652 synchronous VFC requires only one external

component (a noncritical integrator capacitor) for

operation.

3. The AD652 includes a buffered, accurate 5 V reference.

4. The AD652’s clock input is TTL and CMOS compatible and

can also be driven by sources referred to the negative power

supply. The flexible open-collector output stage provides

sufficient current sinking capability for TTL and CMOS

logic, as well as for optical couplers and pulse transformers.

A capacitor-programmable one-shot is provided for selec-

tion of optimum output pulse width for power reduction.

The AD652 uses a variation of the charge-balancing technique

to perform the conversion function. The AD652 uses an

external clock to define the full-scale output frequency, rather

than relying on the stability of an external capacitor. The result

is a more stable, more linear transfer function, with significant

application benefits in both single- and multichannel systems.

Gain drift is minimized using a precision low drift reference

and low TC, on-chip, thin-film scaling resistors. Furthermore,

initial gain error is reduced to less than 0.5% by the use of laser-

wafer-trimming.

5. The AD652 can also be configured for use as a synchronous

F/V converter for isolated analog signal transmission.

6. The AD652 is available in versions compliant with

MILSTD-883. Refer to the Analog Devices Military

Products Databook or current AD652/883B data sheet for

detailed specifications.

The analog and digital sections of the AD652 have been

designed to allow operation from a single-ended power source,

simplifying its use with isolated power supplies.

FUNCTIONAL BLOCK DIAGRAM

CLOCK IN

COMPARATOR

INT

D FLOP

LATCH

ONE

SHOT

AND

INTEGRATOR

1mA

–V

Figure 1.

Rev. C

Information furnished by Analog Devices is believed to be accurate and reliable.

However, no responsibility is assumed by Analog Devices for its use, nor for any

infringements of patents or other rights of third parties that may result from its use.

Specifications subject to change without notice. No license is granted by implication

or otherwise under any patent or patent rights of Analog Devices. Trademarks and

registered trademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.326.8703

www.analog.com

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AD652JPZ 替代型号

型号	品牌	替代类型	描述	数据表
AD652JPZ-REEL	ADI	完全替代	Monolithic Synchronous Voltage-to-Frequency Converter
AD652KPZ-REEL	ADI	完全替代	Monolithic Synchronous Voltage-to-Frequency Converter

与AD652JPZ相关器件

型号	品牌	获取价格	描述	数据表
AD652JPZ-REEL	ADI	获取价格	Monolithic Synchronous Voltage-to-Frequency Converter
AD652JPZ-REEL7	ROCHESTER	获取价格	VOLTAGE-FREQUENCY CONVERTER, 4 MHz, PQCC20, PLASTIC, LCC-20
AD652KP	ADI	获取价格	Monolithic Synchronous Voltage-to-Frequency Converter
AD652KP	ROCHESTER	获取价格	VOLTAGE-FREQUENCY CONVERTER, 4 MHz, PQCC20, PLASTIC, LCC-20
AD652KP-REEL	ADI	获取价格	Monolithic Synchronous Voltage-to-Frequency Converter
AD652KP-REEL	ROCHESTER	获取价格	VOLTAGE-FREQUENCY CONVERTER, 4 MHz, PQCC20, PLASTIC, LCC-20
AD652KPZ	ADI	获取价格	Monolithic Synchronous Voltage-to-Frequency Converter
AD652KPZ	ROCHESTER	获取价格	VOLTAGE-FREQUENCY CONVERTER, 4 MHz, PQCC20, PLASTIC, LCC-20
AD652KPZ-REEL	ADI	获取价格	Monolithic Synchronous Voltage-to-Frequency Converter
AD652KPZ-REEL	ROCHESTER	获取价格	VOLTAGE-FREQUENCY CONVERTER, 4 MHz, PQCC20, PLASTIC, LCC-20

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