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LTZ1000: Ultra Precision Reference Data Sheet11/9/2015PDF170K
Alternative Parts
Overview
Features and Benefits
- 1.2µVP-P Noise
- 2µV/√kHr Long Term Stability
- Very Low Hysteresis
- 0.05ppm/°C Drift
- Temperature Stabilized
- 400°C/W Thermal Resistance for LTZ1000A Reduces Insulation Requirements
- Specified for –55°C to 125°C Temperature Range
- Offered in TO-99 package
Product Details
The LTZ1000 and LTZ1000A are ultra stable temperature controllable references. They are designed to provide 7V outputs with temperature drifts of 0.05ppm/°C, about 1.2µVP-P of noise and long term stability of 2µV/√kHr.
Included on the chip is a subsurface Zener reference, a heater resistor for temperature stabilization, and a temperature sensing transistor. External circuitry is used to set operating currents and to temperature stabilize the reference. This allows maximum fl exibility and best long term stability and noise.
The LTZ1000 and LTZ1000A references can provide superior performance to older devices such as the LM199, provided that the user implements the heater control and properly manages the thermal layout. To simplify thermal insulation, the LTZ1000A uses a proprietary die attach method to provide signifi cantly higher thermal resistance than the LTZ1000.
Applications
- Voltmeters
- Calibrators
- Standard Cells
- Scales
- Low Noise RF Oscillators
Product Categories
Markets and Technologies
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
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R023 Reliability Data3/26/2018PDF30 K
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AN82 - Understanding and Applying Voltage References2/3/2011PDF168K
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AN42 - Voltage Reference Circuit Collection2/3/2011PDF1M
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AN86 - A Standards Lab Grade 20-Bit DAC with 0.1ppm/° Drift: The Dedicated Art of Digitizing One Part Per Million10/15/2007PDF527K
Tools & Simulations
LTspice
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Models for the following parts are available in LTspice:
LTZ1000
LTZ1000A
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
PCN-PDN Information
Support & Discussions
LTZ1000 Discussions
Sample & Buy
Ordering FAQs
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
Please see the latest communication from our CCO regarding lead times.
Sampling
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