AD537KH Price|Datasheet

AD537KH

IC V/F CONV TO-100-10

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Shenzhen: 1115 pcs

Shanghai: 839 pcs

Hong Kong: 2912 pcs

United States: 6007 pcs

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Specifications of AD537KH

Part Number	AD537KH
Date Code	2341
Quantity Available	10873 pcs
Manufacturer	Analog Devices Inc.
Lead Time	Ship within 24 hours
QTY	2000
Datasheet	AD537.pdf
Minimum Quantity	More than 50pcs
Distributor	SingSun
RoHS Status	Lead free / RoHS Compliant
Ship From	Hong Kong
Shipment Way	EMS/SF/DHL/TNT/UPS/FedEx
Country of Assembly	THAILAND
Country of Diffusion	TAIWAN,CHINA
Lot Number	DW57233.32
MSL	3

Base Product Number	AD537
Packaging	Bulk
Series	-
Type	Voltage to Frequency
Frequency - Max	100kHz
Full Scale	±30ppm/°C
Linearity	±0.05%
Mounting Type	Through Hole
Package / Case	TO-100-10 Metal Can
Supplier Device Package	TO-100-10

AD537KH Features

● Low Cost A-D Conversion
● Versatile Input Amplifier
○ Positive or Negative Voltage Modes
○ Negative Current Mode
○ High Input Impedance, Low Drift
● Single Supply, 5 V to 36 V
● Linearity: ±0.05% FS
● Low Power: 1.2 mA Quiescent Current
● Full-Scale Frequency up to 100 kHz
● 1.00 V Reference
● Thermometer Output (1 mV/K)
● F-V Applications
● MIL-STD-883 Compliant Versions Available

AD537KH Applications

PRODUCT HIGHLIGHTS
1、The AD537 is a complete V-F converter requiring only an external RC timing network to set the desired full-scale frequency and a selectable pull-up resistor for the open collector output stage. Any full-scale input voltage range from 100 mV to 10 volts (or greater, depending on +VS) can be accommodated by proper selection of timing resistor. The full-scale frequency is then set by the timing capacitor from the simple relationship, f = V/10RC.
2、The power supply requirements are minimal, only 1.2 mA quiescent current is drawn from a single positive supply from 4.5 volts to 36 volts. In this mode, positive inputs can vary from 0 volts (ground) to (+Vs - 4) volts.Negative inputs can easily be connected for below ground operation.
3、F-V converters with excellent characteristic are also easy to build by connecting the AD537 in a phase-locked loop. Application particulars are shown in Figure 6.
4、The versatile open-collector NPN output stage can sink up to 20 mA with a saturation voltage less than 0.4 volts. The Logic Common terminal can be connected to any level between ground (or -V) and 4 volts below +Vs.This allows easy direct interface to any logic family with either positive or negative logic levels.
5、The AD537 is available in versions compliant with MIL STD-883. Refer to the Analog Devices Military Product Databook or current AD537/883B data sheet for detailed specifications.

AD537KH Description

The AD537KH is a monolithic V-F converter consisting of an input amplifier, a precision oscillator system, an accurate internal reference generator and a high current output stage. Only a single external RC network is required to set up any full-scale (F.S.) frequency up to 100 kHz and any F.S. input voltage up to ±30 V. Linearity error is as low as ±0.05% for 10 kHz F.S., and operation is guaranteed over an 80 dB dynamic range. The overall temperature coefficient (excluding the effects of external components) is typically ±30 ppm/°C. The AD537 operates from a single supply of 5 V to 36 V and consumes only 1.2 mA quiescent current.

A temperature-proportional output, scaled to 1.00 mV/K, enables the circuit to be used as a reliable temperature-to-frequency converter; in combination with the fixed reference output of 1.00 V, offset scales such as 0°C or 0°F can be generated.

The low drift (1µV/°C typ) input amplifier allows operation directly from small signals (e.g., thermocouples or strain gages) while offering a high (250 M(Ω) input resistance. Unlike most V-F converters, the AD537 provides a square-wave output, and can drive up to 12 TTL loads, LEDs, very long cables, etc.

The excellent temperature characteristics and long-term stability of the AD537 are guaranteed by the primary bandgap reference generator and the low T.C. silicon chromium thin film resistors used throughout.

The device is available in either a TO-116 ceramic DIP or a TO-100 metal can; both are hermetically sealed packages.

The AD537KH is available in three performance/temperature grades; the J and K grades are specified for operation over the 0°C to +70°C range while the AD537S is specified for operation over the extended temperature range, -55°C to +125°C.

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