Model No: LTZ1000ACH
Analog Devices Inc. LTZ1000ACH
Manufacturer:Analog Devices Inc.
SEMICON NO.:LTZ1000ACH
Package:TO-205-8, TO-5-8 Metal Can
Stock:In stock
Description:Bulk
SEMICON NO.:LTZ1000ACH
Package:TO-205-8, TO-5-8 Metal Can
Stock:In stock
Description:Bulk
Quantity :
| Mfr | Analog Devices Inc. |
| Series | - |
| Package | Bulk |
| Product Status | Obsolete |
| Mounting Type | Through Hole |
| Package / Case | TO-205-8, TO-5-8 Metal Can |
| Supplier Device Package | TO-5 |
| Base Product Number | LTZ1000 |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
| Standard Package | 20 |
LTZ1000ACH Buried Zener reference IC, Metrology-grade reference Chip Overview
The LTZ1000ACH is an ultra-precision buried Zener voltage reference from Analog Devices, renowned for its exceptional stability, low noise, and minimal long-term drift. Designed for metrology-grade applications, this reference delivers a 7.2V output with an outstanding initial accuracy of ±0.05%, making it ideal for high-resolution digital voltmeters, calibration equipment, and precision instrumentation. The device operates over a wide temperature range of -55°C to +125°C, maintaining remarkable thermal stability with a typical temperature coefficient of 0.05ppm/°C. Its low noise performance (1.2μVp-p, 0.1Hz to 10Hz) ensures clean reference voltages in sensitive analog circuits.
The LTZ1000ACH incorporates a subsurface (buried) Zener diode, which minimizes aging effects and provides superior long-term stability, typically 2ppm/1000hrs. The device includes an internal heater and temperature control circuitry, actively regulating the die temperature to reduce thermal hysteresis and improve accuracy. This self-heating feature allows the LTZ1000ACH to maintain stability even in fluctuating ambient conditions. The chip requires an external precision op-amp (such as the LT1013) to form a complete reference circuit, enabling fine-tuning for optimal performance. Its TO-99 metal can package ensures excellent thermal conductivity and mechanical robustness.
This voltage reference is widely used in calibration laboratories, aerospace systems, and scientific instruments where the highest level of precision is required. It is particularly valued in 8.5-digit multimeters, DC voltage standards, and high-end data acquisition systems. The LTZ1000ACH's low drift and low noise make it a preferred choice for applications demanding sub-ppm-level stability over extended periods. While it requires careful circuit design and thermal management, its performance far surpasses most monolithic references.
Voltage reference IC Alternative Models
● LTZ1000A – Similar performance in a different package (TO-100), slightly higher drift.
● LM399AH – 6.95V buried Zener reference, lower cost, higher noise (7μVp-p).
● ADR1000AHZ– Next-gen ultra-precision reference, improved long-term drift (1ppm/1000hrs).
● REF102CU – 10V precision reference, lower accuracy (±0.025%), no heater.
The LTZ1000ACH is an ultra-precision buried Zener voltage reference from Analog Devices, renowned for its exceptional stability, low noise, and minimal long-term drift. Designed for metrology-grade applications, this reference delivers a 7.2V output with an outstanding initial accuracy of ±0.05%, making it ideal for high-resolution digital voltmeters, calibration equipment, and precision instrumentation. The device operates over a wide temperature range of -55°C to +125°C, maintaining remarkable thermal stability with a typical temperature coefficient of 0.05ppm/°C. Its low noise performance (1.2μVp-p, 0.1Hz to 10Hz) ensures clean reference voltages in sensitive analog circuits.
The LTZ1000ACH incorporates a subsurface (buried) Zener diode, which minimizes aging effects and provides superior long-term stability, typically 2ppm/1000hrs. The device includes an internal heater and temperature control circuitry, actively regulating the die temperature to reduce thermal hysteresis and improve accuracy. This self-heating feature allows the LTZ1000ACH to maintain stability even in fluctuating ambient conditions. The chip requires an external precision op-amp (such as the LT1013) to form a complete reference circuit, enabling fine-tuning for optimal performance. Its TO-99 metal can package ensures excellent thermal conductivity and mechanical robustness.
This voltage reference is widely used in calibration laboratories, aerospace systems, and scientific instruments where the highest level of precision is required. It is particularly valued in 8.5-digit multimeters, DC voltage standards, and high-end data acquisition systems. The LTZ1000ACH's low drift and low noise make it a preferred choice for applications demanding sub-ppm-level stability over extended periods. While it requires careful circuit design and thermal management, its performance far surpasses most monolithic references.
Voltage reference IC Alternative Models
● LTZ1000A – Similar performance in a different package (TO-100), slightly higher drift.
● LM399AH – 6.95V buried Zener reference, lower cost, higher noise (7μVp-p).
● ADR1000AHZ– Next-gen ultra-precision reference, improved long-term drift (1ppm/1000hrs).
● REF102CU – 10V precision reference, lower accuracy (±0.025%), no heater.
