LINEAR TECHNOLOGY LT1027 Data Sheet
Summary
This precision reference voltage source delivers superior accuracy and ultra-low drift for demanding measurement systems. Featuring less than 1ppm noise, excellent line/load regulation, and stability derived from an advanced subsurface Zener process, it excels in applications like high-resolution A-to-D and D-to-A converters (12–16 bit). The manual provides comprehensive electrical characteristics, absolute maximum ratings, and application support required for system design, making it perfect for engineers requiring extreme precision with stable performance across temperature variations.
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查询LT1027ECN8-5供应商
LT1027 Precision
5V Reference
FEATURES DESCRIPTIO
Very Low Drift: 2ppm/°C Max TC The LT®1027 is a precision reference with extra-low drift, Pin Compatible with LT1021-5, REF-02, superior accuracy, excellent line and load regulation and (TO-5 and PDIP Packages Only) low output impedance at high frequency. This device is Output Sources 15m A, Sinks 10m A intended for use in 12- to 16-bit A-to-D and D-to-A Excellent Transient Response Suitable for systems where demanding accuracy requirements must A-to-D Reference Inputs be met without the use of power hungry, heated substrate Noise Reduction Pin references. The fast settling output recovers quickly from Excellent Long Term Stability load transients such as those presented by A-to-D converter Less Than 1ppm P-P Noise (0.1Hz to 10Hz) reference inputs. The LT1027 brings together both outstanding accuracy and temperature coefficient
APPLICATIO S specifications.
A-to-D and D-to-A Converters The LT1027 reference is based on LTC’s proprietary Digital Voltmeters advanced subsurface Zener bipolar process which Reference Standard eliminates noise and stability problems associated with Precision Current Source surface breakdown devices.
OU TP UT OL TA GE (V , LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
Supplying VREF and VCC to the LTC®1290 12-bit ADC
Output Voltage
VCC 5.006
CH0 SCLK
CH1 ACLK CH2 DOUT TO µC
ANALOG CH3
INPUTS CH4
CH5 5.002 8V TO 40V CH6 CH7 LTC1290 5.000 COM
VOUT REF+
REF– 4.996
2.2µF LT1027
VTRIM 10k 22µF AGND V– DGND
GND –50 –25
TEMPERATURE (°C)
1027 TA01
1027 TA02
Page Summary Contents For LINEAR TECHNOLOGY LT1027 Data Sheet
Manual Details
| Brand | Linear |
|---|---|
| Pages | 9 |
| File Size | 173.69 KB |
| Published | May 30, 2026 |
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Frequently Asked Questions
Why is the LT1027 considered a high-accuracy reference?
It features extra-low drift, an outstanding temperature coefficient (e.g., 2ppm/°C max), and excellent line and load regulation.
What types of converters is this module designed for?
The LT1027 is intended for use in 12- to 16-bit A-to-D and D-to-A output source systems.
What are the operating temperature ranges for different packages?
The range varies by package: LT1027C is 0°C to 70°C, while LT1027M supports –55°C to 125°C.
What are the required external voltage specifications?
The device can handle a supply voltage up to 40V. The absolute maximum ratings specify continuous operation up to 40V.