© Semiconductor Components Industries, LLC, 2001

April, 2001 – Rev. 6

1

Publication Order Number:

CS1009/D

CS1009

2.5 Volt Reference

The CS1009 is a precision trimmed 2.5 V

±5.0 mV shunt regulator

diode. The low dynamic impedance and wide operating current range

enhances its versatility. The tight reference tolerance is achieved by

on–chip trimming which minimizes voltage tolerance and temperature

drift.

A third terminal allows the reference voltage to be adjusted

±5.0%

to calibrate out system errors. In many applications, the CS1009GZ

can be used as a pin–to–pin replacement of the LT1009CZ and the

LM136Z–2.5 with the external trim network eliminated.

Features

Performance

Figure 1. Application Diagram

5.0 V–35 V

3.6 k

Ω

ADJ

10 k

Ω∗

GND

*

±5.0% Trim Range

TRIM

http://onsemi.com

Device

Package

Shipping

ORDERING INFORMATION

CS1009GD8

SO–8

95 Units/Rail

CS1009GDR8

SO–8

2500 Tape & Reel

A

= Assembly Location

WL, L

= Wafer Lot

YY, Y

= Year

WW, W = Work Week

CS1009GZ3

TO–92

2000 Units

CS1009GZR3

TO–92

2000 Tape & Reel

TO–92

Z SUFFIX

CASE 29

SO–8

D SUFFIX

CASE 751

1

8

ADJ. PIN

GND

1

8

NC

NC

NC

NC

NC

PIN CONNECTIONS AND

MARKING DIAGRAM

1009

YWW

Pin 1. ADJ. PIN

3. GND

1

1

2

3