描述 Description

The MAX6225/MAX6241/MAX6250 are low-noise, precision voltage references with extremely low 1ppm/°C 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 frequency make them ideal for high-resolution data-conversion systems up to 16 bits.
The MAX6225 is set for 2.500V output, the MAX6241 is set for 4.096V output, and the MAX6250 is set for 5.000V output. All three devices provide for the option of external trimming and noise reduction.

特性 Features

·Low 1.0ppm/°C Temperature Coefficient
·Very Low 1.5μVp-p Noise (0.1Hz to 10Hz)
·±0.02% Initial Accuracy
·±15mA Output Source and Sink Current
·Low, 18mW Power Consumption (MAX6225)
·Industry-Standard Pinout
·Optional Noise Reduction and Voltage Trim
·Excellent Transient Response
·8-Pin SO Package Available
·Low 20ppm/1000h Long-Term Stability
·Stable for All Capacitive Loads

應用 Application

·A/D轉換器
·自動測試設備(ATE)
·數字電壓表
·高精度工業(yè)與過程控制
·高精度基準
·高分辨率模數轉換器
·精密電流源

簡介

MAX6225B屬于集成電路（IC）的電壓基準。由制造生產的MAX6225B電壓基準產品屬于基準電壓源系列，可通過相對較不穩(wěn)定的電源提供穩(wěn)定的電勢，電壓值始終保持恒定，以便在測量、控制和類似應用中用作比較的標準。其功能行為可能與用于大功率調節(jié)的線性穩(wěn)壓器相似，但基準電壓源器件卻不適合用于此類用途。用作比較標準時，若輸出電流容量或實際負載電流增大，其性能通常會降低。