General Description

The MAX6325/MAX6341/MAX6350 are low-noise, precision voltage references with extremely low, 0.5ppm/°C typical temperature coefficients and excellent, ±0.02 initial accuracy. These devices feature buried-zener technology for lowest noise performance. Load-regulation specifications are guaranteed for source and sink currents up to 15mA. Excellent line and load regulation and low output impedance at high frequencies make them ideal for high-resolution data-conversion systems up to 16 bits.

The MAX6325 is set for a 2.5V output, the MAX6341 is set for a 4.096V output, and the MAX6350 is set for a 5V output. All three provide for the option of external trimming and noise reduction.

Features

♦ Ultra Low, 1ppm/°C Max Tempco

♦ Very Low, 1.5µVp-p Noise (0.1Hz to 10Hz) (MAX6325)

♦ ±0.02 Initial Accuracy (MAX6350)

♦ ±15mA Output Source and Sink Current

♦ Low, 18mW Power Consumption (MAX6325)

♦ Industry-Standard Pinout

♦ Optional Noise Reduction and Voltage Trim

♦ Excellent Transient Response

♦ 8-Pin SO Package Available

♦ Low, 30ppm/1000hr Long-Term Stability

♦ Stable for All Capacitive Loads

Applications

   High-Resolution Analog-to-Digital and Digital-to-Analog Converters

   High-Accuracy Reference Standard

   High-Accuracy Industrial and Process Control

   Digital Voltmeters

   ATE Equipment

   Precision Current Sources