AD537KD - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

AD537KD
Manufacturer

ADI
ChipWorker Part#

CW1063408
Category

Analog to Digital, ADC IC
Package

CDIP-14
Description

ANALOG DEVICES AD537KD Voltage to Frequency Converter, 150kHz, 0Hz to 150kHz, 0.15%, 4.5V to 36V, TO-116, 14Pins
Documentation

Datasheet

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AD537KD Specifications

Attribute	Attribute Value

Part Number	AD537KD
Manufacturer	ADI
ChipWorker Part#	CW1063408
Category	Analog to Digital, ADC IC
Documentation	Datasheet
Mounting Style	Through Hole
Number of Pins	14 Pin
Case/Package	CDIP-14
Frequency	150 kHz
Supply Current	2.50 mA
Operating Temperature (Max)	70 ℃
Operating Temperature (Min)	0 ℃
Supply Voltage	4.5V ~ 36V
Supply Voltage (Max)	36 V
Supply Voltage (Min)	4.5 V
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Size-Length	19.94 mm
Size-Width	7.87 mm
Size-Height	3.56 mm
Product Lifecycle Status	Active
Packaging	Tube
RoHS	Non-Compliant
Lead-Free Status	Contains Lead
REACH SVHC Compliance Edition	2015/12/17
ECCN Code	EAR99

Product Description

Product Details
The AD537 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(Ohm) 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 AD537 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.
### Features and Benefits
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

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