LT1021CCN85PBF Linear Technology Corporation, LT1021CCN85PBF Datasheet

LT1021CCN85PBF

Manufacturer Part Number

LT1021CCN85PBF

Description

DIP8

Manufacturer

Linear Technology Corporation

Datasheet

1.LT1021CCN85PBF.pdf (16 pages)

Specifications of LT1021CCN85PBF

Date_code

09+

Current page: 1 of 16
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APPLICATIO S

FEATURES

TYPICAL APPLICATIO

■

Ultralow Drift: 5ppm/

Very Low Noise: <1ppm

100% Noise Tested

Pin Compatible with Most Bandgap Reference

Applications, Including Ref 01, Ref 02, LM368,

MC1400 and MC1404 with Greatly Improved

Stability, Noise and Drift

Trimmed Output Voltage

Operates in Series or Shunt Mode

Output Sinks and Sources in Series Mode

>100dB Ripple Rejection

Minimum Input/Output Differential of 1V

Available in 5-Lead Can, N8 and S8 Packages

A/D and D/A Converters

Precision Regulators

Digital Voltmeters

Inertial Navigation Systems

Precision Scales

Portable Reference Standard

Basic Positive and Negative Connections

LT1021

GND

OUT

C Max Slope

R1 =

P-P

(0.1Hz to 10Hz)

LOAD

OUT

+ 1.5mA

– (V

(7 AND 10 ONLY)

–

)

LT1021

–15V

GND

–

)

OUT

–V

OUT

1021 TA01

DESCRIPTIO

The LT

and noise, extremely good long term stability and almost

total immunity to input voltage variations. The reference

output will both source and sink up to 10mA. Three

voltages are available: 5V, 7V and 10V. The 7V and 10V

units can be used as shunt regulators (two-terminal zeners)

with the same precision characteristics as the three-

terminal connection. Special care has been taken to mini-

mize thermal regulation effects and temperature

induced hysteresis.

The LT1021 references are based on a buried zener diode

structure that eliminates noise and stability problems

associated with surface breakdown devices. Further, a

subsurface zener exhibits better temperature drift and

time stability than even the best bandgap references.

Unique circuit design makes the LT1021 the first IC

reference to offer ultralow drift without the use of high

power on-chip heaters.

The LT1021-7 uses no resistive divider to set output

voltage, and therefore exhibits the best long term stability

and temperature hysteresis. The LT1021-5 and LT1021-

10 are intended for systems requiring a precise 5V or 10V

reference with an initial tolerance as low as ±0.05%.

All other trademarks are the property of their respective owners.

, LTC and LT are registered trademarks of Linear Technology Corporation.

1021 is a precision reference with ultralow drift

– 0

Typical Distribution of Temperature Drift

– 5

– 4

Precision Reference

– 3

OUTPUT DRIFT (ppm/°C)

– 2

–1

DISTRIBUTION

OF THREE RUNS

1021 TA01

LT1021

1021fc

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