• AD537JH
  • AD537JH
  • AD537JH
  • AD537JH
  • AD537JH
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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.

Frequency150kHz
Full Scale Range0Hz to 150kHz
Linearity %0.05%
Supply Voltage Range5V to 36V
Digital IC CaseTO-100
No. of Pins10Pins
PackagingEach
Product Range-
RoHS Phthalates CompliantYes
MSL-
SVHCNo SVHC (07-Jul-2017)
rohs_statusNon-Compliant
reach_svhc_complianceNo SVHC
lead_free_statusContains Lead
mounting_styleThrough Hole
packagingBulk
frequency150 kHz
supply_current2.50 mA
lifecycle_statusActive
pin_count10
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