전자부품 데이터시트 검색엔진
  Korean  ▼
ALLDATASHEET.CO.KR

X  

AD7740KRMZ 데이터시트(PDF) 1 Page - Analog Devices

부품명 AD7740KRMZ
상세설명  3 V/5 V Low Power, Synchronous Voltage-to-Frequency Converter
Download  11 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  AD [Analog Devices]
홈페이지  http://www.analog.com
Logo AD - Analog Devices

AD7740KRMZ 데이터시트(HTML) 1 Page - Analog Devices

  AD7740KRMZ Datasheet HTML 1Page - Analog Devices AD7740KRMZ Datasheet HTML 2Page - Analog Devices AD7740KRMZ Datasheet HTML 3Page - Analog Devices AD7740KRMZ Datasheet HTML 4Page - Analog Devices AD7740KRMZ Datasheet HTML 5Page - Analog Devices AD7740KRMZ Datasheet HTML 6Page - Analog Devices AD7740KRMZ Datasheet HTML 7Page - Analog Devices AD7740KRMZ Datasheet HTML 8Page - Analog Devices AD7740KRMZ Datasheet HTML 9Page - Analog Devices Next Button
Zoom Inzoom in Zoom Outzoom out
 1 / 11 page
background image
FUNCTIONAL BLOCK DIAGRAM
BUF
VDD
CLKIN
AD7740
VIN
FOUT
2.5V
REFERENCE
VOLTAGE-TO-
FREQUENCY
MODULATOR
CLKOUT
GND
CLOCK
GENERATION
REFIN/OUT
X1
REV. A
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
AD7740*
FEATURES
Synchronous Operation
Full-Scale Frequency Set by External System Clock
8-Lead SOT-23 and 8-Lead microSOIC Packages
3 V or 5 V Operation
Low Power: 3 mW (Typ)
Nominal Input Range: 0 to VREF
True –150 mV Capability Without Charge Pump
VREF Range: 2.5 V to VDD
Internal 2.5 V Reference
1 MHz Max Input Frequency
Selectable High Impedance Buffered Input
Minimal External Components Required
APPLICATIONS
Isolation of High Common-Mode Voltages
Low-Cost Analog-to-Digital Conversion
Battery Monitoring
Automotive Sensing
GENERAL DESCRIPTION
The AD7740 is a low-cost, ultrasmall synchronous Voltage-to-
Frequency Converter (VFC). It works from a single 3.0 V to
3.6 V or 4.75 V to 5.25 V supply consuming 0.9 mA. The AD7740
is available in an 8-lead SOT-23 and also in an 8-lead microSOIC
package. Small package, low cost and ease of use were major
design goals for this product. The part contains an on-chip 2.5 V
bandgap reference but the user may overdrive this using an
external reference. This external reference range includes VDD.
The full-scale output frequency is synchronous with the clock
signal on the CLKIN pin. This clock can be generated with the
addition of an external crystal (or resonator) or supplied from a
CMOS-compatible clock source. The part has a maximum
input frequency of 1 MHz.
For an analog input signal that goes from 0 V to VREF, the out-
put frequency goes from 10% to 90% of fCLKIN. In buffered mode,
the part provides a very high input impedance and accepts a
range of 0.1 V to VDD – 0.2 V on the VIN pin. There is also
an unbuffered mode of operation that allows VIN to go from
–0.15 V to VDD + 0.15 V. The modes are interchangeable using
the BUF pin.
The AD7740 (Y Grade) is guaranteed over the automotive
temperature range of –40
°C to +105°C. The AD7740 (K Grade)
is guaranteed from 0
°C to 85°C.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 2001
PRODUCT HIGHLIGHTS
1. The AD7740 is a single channel, single-ended VFC. It is
available in 8-lead SOT-23 and 8-lead microSOIC packages,
and is intended for low-cost applications. The AD7740 offers
considerable space saving over alternative solutions.
2. The AD7740 operates from a single 3.0 V to 3.6 V or 4.75 V
to 5.25 V supply and consumes typically 0.9 mA when the
input is unbuffered. It also contains an automatic power-down
function.
3. The AD7740 does not require external resistors and capaci-
tors to set the output frequency. The maximum output
frequency is set by a crystal or a clock. No trimming or cali-
bration is required.
4. The analog input can be taken to 150 mV below GND for
true bipolar operation.
5. The specified voltage reference range on REFIN is from
2.5 V to the supply voltage, VDD.
3 V/5 V Low Power, Synchronous
Voltage-to-Frequency Converter
*Protected under U.S. Patent # 6,147,528.


유사한 부품 번호 - AD7740KRMZ

제조업체부품명데이터시트상세설명
logo
Analog Devices
AD7740KRMZ AD-AD7740KRMZ Datasheet
327Kb / 13P
   Low Power, Synchronous Voltage-to-Frequency Converter
AD7740KRMZ-REEL AD-AD7740KRMZ-REEL Datasheet
327Kb / 13P
   Low Power, Synchronous Voltage-to-Frequency Converter
AD7740KRMZ-REEL7 AD-AD7740KRMZ-REEL7 Datasheet
136Kb / 11P
   3 V/5 V Low Power, Synchronous Voltage-to-Frequency Converter
REV. A
AD7740KRMZ-REEL7 AD-AD7740KRMZ-REEL7 Datasheet
327Kb / 13P
   Low Power, Synchronous Voltage-to-Frequency Converter
More results

유사한 설명 - AD7740KRMZ

제조업체부품명데이터시트상세설명
logo
Analog Devices
AD7740 AD-AD7740 Datasheet
144Kb / 11P
   3 V/5 V Low Power, Synchronous Voltage-to-Frequency Converter
REV. 0
AD7740YRTZ-REEL7 AD-AD7740YRTZ-REEL7 Datasheet
146Kb / 11P
   3 V/5 V Low Power, Synchronous Voltage-to-Frequency Converter
REV. A
AD7740 AD-AD7740_15 Datasheet
146Kb / 11P
   3 V/5 V Low Power, Synchronous Voltage-to-Frequency Converter
REV. A
AD7740YRMZ AD-AD7740YRMZ Datasheet
146Kb / 11P
   3 V/5 V Low Power, Synchronous Voltage-to-Frequency Converter
REV. A
AD7740KRMZ-REEL7 AD-AD7740KRMZ-REEL7 Datasheet
136Kb / 11P
   3 V/5 V Low Power, Synchronous Voltage-to-Frequency Converter
REV. A
AD7740 AD-AD7740_17 Datasheet
327Kb / 13P
   Low Power, Synchronous Voltage-to-Frequency Converter
logo
Burr-Brown (TI)
ADS1206 BURR-BROWN-ADS1206 Datasheet
158Kb / 8P
   LOW-POWER, SYNCHRONOUS VOLTAGE-TO-FREQUENCY CONVERTER
logo
Texas Instruments
LMR33630-Q1 TI1-LMR33630-Q1 Datasheet
2Mb / 47P
[Old version datasheet]   3.8-V to 36-V, 3-A Synchronous Step-Down Voltage Converter
LMR33630-Q1 TI1-LMR33630-Q1_18 Datasheet
2Mb / 47P
[Old version datasheet]   3.8-V to 36-V, 3-A Synchronous Step-Down Voltage Converter
LMR33630-Q1_1811 TI1-LMR33630-Q1_1811 Datasheet
2Mb / 44P
[Old version datasheet]   3.8-V to 36-V, 3-A Synchronous Step-Down Voltage Converter
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11


데이터시트 다운로드

Go To PDF Page


링크 URL




개인정보취급방침
ALLDATASHEET.CO.KR
ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ] 

Alldatasheet는?   |   광고문의   |   운영자에게 연락하기   |   개인정보취급방침   |   링크교환   |   제조사별 검색
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com