458J

Features:

High Stability: 5ppm/°C max, Model 458L
                         15ppm/°C max, Model 460L
Low Nonlinearity: 100ppm max, Model 458
                               150ppm max, Model 460
Versatility: Differential Input Stage
                   Voltage and Current Inputs
                   Floating Inputs: ±10V CMV
Wide Dynamic Range: 6 Decades, Model 460
TTL/DTL Compatible Output
APPLICATIONS
Fast Analog-to-Digital Converter
High Resolution Optical Data Link
Ratiometric Measurements
2-Wire High Noise Immunity Digital Transmission
Long Term Precision Integrator


Description

Models 458 and 460 are high performance, differential input, voltage to frequency modular converters designed for analog to digital applications requiring accuracy and fast data conversion. Model 458 offers a l00kHz full scale frequency, guaranteed nonlinearity of ±0.01% maximum over five decades (1Hz to 100kHz) of operation and guaranteed low maximum gain drift in three model selections; model 458L: 5ppm/°C max; model 458K: 10ppm/°C max; and model 458J: 20ppm/°C max. Model 460 offers a 1MHz full scale frequency, guaranteed maximum nonlinearity of ±0.015% over six decades (1Hz to 1MHz) of operation and guaranteed low maximum gain drift in three selections; model 460L: 15ppm/°C max; model 460K: 25ppm/°C max; and model 460J: 50ppm/°C max. Model 460L is the industry's first 1MHz V/F converter to offer 15ppm/°C maximum gain drift.

The differential input stage of models 458 and 460 provide the versatility of either direct interface to off-ground 0 to +11V input signals with common mode voltages (CMV) to ±10V, as well as ground referenced positive, 0 to +11V or negative, 0 to -11V signals. Both models 458 and 460 also accept positive current signals: 0 to +0.5mA, model 458; 0 to +1mA, model 460 for current to frequency (I/F) applications.