n/a ZXRE125FFTA n/a ZXRE125ER 1.22V VOLTAGE REF (ZTX) n/a ZXRE125EF 1.22V SMD VOLTAGE REF (ZTX) Voltage and current reference

Transcription

1 DATA SHEET Voltage and current reference Order code Manufacturer code Description 8- n/a ZXRE5FFTA 8- n/a ZXRE5ER V VOLTAGE REF (ZTX) 8- n/a ZXRE5EF V SMD VOLTAGE REF (ZTX) Voltage and current reference The enclosed information is believed to be correct, Information may change without notice due to product improvement. Users should ensure that the product is suitable for their use. E. & O. E. Page of 5 Revision A /7/ Sales: Technical: Fax: Sales@rapidelec.co.uk Tech@rapidelec.co.uk

2 ZXRE5 SOT MICROPOWER V VOLTAGE REFERENCE DESCRIPTION The ZXRE5 is a bandgap circuit designed to achieve a precision micropower voltage reference of volts. The device is available in the small outline SOT surface mount package which is ideal for applications where space saving is important. SOT tolerance is available to.5% for precision applications. Excellent performance is maintained over the A to 5mA operating current range with a FEATURES High performance replacement for ZRA and ZRA5 references Small outline SOT SO8 and E-Line alternatives available A knee current ppm/ C typical temperature coefficient Unconditionally stable.5%, %, % and % tolerance Contact Zetex marketing for availability of tighter tolerance devices SCHEMATIC DIAGRAM typical temperature coefficient of only ppm/ C. The device has been designed to be highly tolerant of capacitive loads so maintaining excellent stability. This device offers a SOT pin for pin compatible replacement of the ZRA and ZRA5 series of voltage references. SO8 and E-Line (TO9 style) packages can also be made available. APPLICATIONS Battery powered equipment Precision power supplies Portable instrumentation Portable communications devices Notebook and palmtop computers Data acquisition systems A/D and D/A converters Test equipment APPLICATIONS CIRCUIT V R.5V k7 V G nd Low quiescent reference from a.5v battery source. ISSUE - JULY 999

3 ZXRE5 ABSOLUTE MAXIMUM RATINGS Reverse Current ma Forward Current ma Operating temperature. - to 85 C Storage temperature. -55 to 5 C ELECTRICAL CHARACTERISTICS TEST CONDITIONS (Unless otherwise stated) Tamb=5 C Power Dissipation (Tamb=5 C) SOT mw SO8 65mW E-Line 5mW SYMBOL PARAMETER CONDITIONS LIMITS TOL. % UNITS V R Reverse Breakdown Voltage I R =A MIN TYP MAX I MIN Minimum Knee Current A V I R T C V R I R Recommended Operating Current Range Average Reverse Breakdown Voltage Temperature Coefficient Reverse Breakdown Voltage change with Current. 5 ma I R(min) to I R(max) 9 ppm/ C I R =A to ma I R =ma to 5mA mv mv Z R Reverse Dynamic Impedance I R =ma f =Hz I AC =. I R E N Wideband Noise Voltage I R =8A to A f=hz to khz..6 6 V(rms) T V V x R max R min C V R x T max T min Note: V R(max) - V R(min) is the maximum deviation in reference voltage measured over the full operating temperature range. Note:.5% SOT only. Reverse Current (ma) 5 TA=-c TO +85C Reverse Voltage (V) Reverse Characteristics ISSUE - JULY 999

4 ZXRE5 TYPICAL CHARACTERISTICS Forward Voltage (V) Forward Current (ma) Forward Characteristics Reference Voltage (V) Temperature ( C) Temperature Drift ) Slope Resistance ( C 5 C 85 C ) Slope Resistance ( ma ma A... Reference Current (ma) Slope Resistance v Current... Frequency (khz) Slope Resistance v Frequency.5 8 A) VR (V) Iin (..5 A ma 8 Time (s) Transient Response V) Wideband Noise ( Reference Current (A) Noise Voltage ISSUE - JULY 999

5 ZXRE5 Ordering Information Device TOL% Package Partmarking ZXRE5CF.5 SOT J ZXRE5DF SOT H ZXRE5EF SOT G ZXRE5FF SOT F ZXRE5DN8 SO8 ZXRE5D ZXRE5EN8 SO8 ZXRE5E ZXRE5FN8 SO8 ZXRE5F ZXRE5DR E-Line ZXRE5D ZXRE5ER E-Line ZXRE5E ZXRE5FR E-Line ZXRE5F Contact Zetex marketing for availability of these package options NOTE: Connection Diagrams SOT Package Suffix F SO8 Package Suffix N8 E-Line, pin,rev Package Suffix R Top View Pin floating or connected to pin Top View Bottom View Pin floating or connected to pin Zetex plc. Fields New Road, Chadderton, Oldham, OL9-8NP, United Kingdom. Telephone: ()6 6 (Sales), ()6 6 (General Enquiries) Fax: ()6 6 Zetex GmbH Zetex Inc. Zetex (Asia) Ltd. These are supported by Streitfeldstraße 9 7 Mall Drive, Unit 5 Metroplaza, Tower agents and distributors in D-867 München Commack NY 75 Hing Fong Road, major countries world-wide Germany USA Kwai Fong, Hong Kong Zetex plc 999 Telefon: (9) Telephone: (56) 5-7 Telephone:(85) 6 6 Fax: (9) Fax: (56) Fax: (85) 5 9 Internet: This publication is issued to provide outline information only which (unless agreed by the Company in writing) may not be used, applied or reproduced for any purpose or form part of any order or contract or be regarded as a representation relating to the products or services concerned. The Company reserves the right to alter without notice the specification, design, price or conditions of supply of any product or service. ISSUE - JULY 999