Datasheet.kr   

AD5170 데이터시트 PDF




Analog Devices에서 제조한 전자 부품 AD5170은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

PDF 형식의 AD5170 자료 제공

부품번호 AD5170 기능
기능 I2C Digital Potentiometer
제조업체 Analog Devices
로고 Analog Devices 로고


AD5170 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.




전체 25 페이지수

미리보기를 사용할 수 없습니다

AD5170 데이터시트, 핀배열, 회로
256-Position, Two-Time Programmable,
I2C Digital Potentiometer
AD5170
FEATURES
256-position digital potentiometer
Two-time programmable (TTP) set-and-forget resistance
setting allows second-chance permanent programming
Unlimited adjustments prior to one-time programming
(OTP) activation
OTP overwrite allows dynamic adjustments with user-
defined preset
End-to-end resistance: 2.5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ
Compact 10-lead MSOP: 3 mm × 4.9 mm package
Fast settling time: tS = 5 μs typical in power-up
Full read/write of wiper register
Power-on preset to midscale
Extra package address decode pins: AD0 and AD1
Single supply: 2.7 V to 5.5 V
Low temperature coefficient: 35 ppm/°C
Low power: IDD = 6 μA maximum
Wide operating temperature: −40°C to +125°C
Evaluation board and software are available
Software replaces MicroConverter® in factory programming
applications
APPLICATIONS
Systems calibration
Electronics level setting
Mechanical trimmers replacement in new designs
Permanent factory PCB settings
Transducer adjustment of pressure, temperature, position,
chemical, and optical sensors
RF amplifier biasing
Automotive electronics adjustments
Gain control and offset adjustments
GENERAL DESCRIPTION
The AD5170 is a 256-position, two-time programmable, digital
potentiometer1 that employs fuse link technology, giving users
two opportunities to permanently program the resistance setting.
For users who do not need to program the digital potentiometer
setting in memory more than once, the OTP feature is a cost-
effective alternative to EEMEM. The AD5170 performs the same
electronic adjustment function as mechanical potentiometers or
variable resistors with enhanced resolution, solid-state reliability,
and superior low temperature coefficient performance.
The AD5170 is programmed using a 2-wire, I2C®-compatible
digital interface. Unlimited adjustments are allowed before
permanently setting the resistance value, and there are two
opportunities for permanent programming. During OTP
1 The terms digital potentiometer, VR, and RDAC are used interchangeably.
Rev. G
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 that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
FUNCTIONAL BLOCK DIAGRAM
AW
B
VDD
GND
AD0
AD1
SDA
SCL
FUSE
1 LINKS 2
RDAC
REGISTER
ADDRESS
DECODE
8
SERIAL INPUT
REGISTER
Figure 1.
activation, a permanent blow fuse command freezes the wiper
position (analogous to placing epoxy on a mechanical trimmer).
Unlike traditional OTP digital potentiometers, the AD5170 has
a unique temporary OTP overwrite feature that allows for new
adjustments even after the fuse is blown. However, the OTP setting
is restored during subsequent power-up conditions. This feature
allows users to treat these digital potentiometers as volatile poten-
tiometers with a programmable preset.
For applications that program the AD5170 at the factory, Analog
Devices, Inc., offers device programming software that runs on
Windows NT®, Windows® 2000, and Windows XP operating
systems. This software effectively replaces any external I2C con-
trollers, thus enhancing the time-to-market of the user’s systems.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113 ©2003–2011 Analog Devices, Inc. All rights reserved.




AD5170 pdf, 반도체, 판매, 대치품
11/04—Rev. 0 to Rev. A
Changes to Electrical Characteristics Table 1................................3
Changes to Electrical Characteristics Table 2................................4
Changes to One-Time Programming ..........................................12
Changes to Figure 37, Figure 38, and Figure 39 .........................14
Changes to Power Supply Considerations ...................................14
Changes to Figure 40 ......................................................................15
Changes to Layout Considerations ...............................................15
11/03—Revision 0: Initial Version
AD5170
Rev. G | Page 3 of 24

4페이지










AD5170 전자부품, 판매, 대치품
AD5170
Parameter
POWER SUPPLIES
Power Supply Range
OTP Supply Voltage8, 9
Supply Current
OTP Supply Current8, 10, 11
Power Dissipation12
Power Supply Sensitivity
DYNAMIC CHARACTERISTICS13
–3 dB Bandwidth
Total Harmonic Distortion
VW Settling Time (10 kΩ/50 kΩ/100 kΩ)
Resistor Noise Voltage Density
Symbol
VDD RANGE
VDD_OTP
IDD
IDD_OTP
PDISS
PSS
BW
THDW
tS
eN_WB
Conditions
Min
VIH = 5 V or VIL = 0 V
VDD_OTP = 5 V, TA = 25°C
VIH = 5 V or VIL = 0 V, VDD = 5 V
VDD = 5 V ± 10%, code =
midscale
2.7
5.6
RAB = 10 kΩ, code = 0x80
RAB = 50 kΩ, code = 0x80
RAB = 100 kΩ, code = 0x80
VA =1 V rms, VB = 0 V, f = 1 kHz,
RAB = 10 kΩ
VA = 5 V, VB = 0 V, ±1 LSB error
band
RWB = 5 kΩ, f = 1 kHz
Typ1 Max
5.7
3.5
100
±0.02
5.5
5.8
6
33
±0.08
600
100
40
0.1
2
9
Unit
V
V
μA
mA
μW
%/%
kHz
kHz
kHz
%
μs
nV/√Hz
1 Typical specifications represent average readings at 25°C and VDD = 5 V.
2 Resistor position nonlinearity error, R-INL, is the deviation from an ideal value measured between the maximum resistance and the minimum resistance wiper
positions. R-DNL measures the relative step change from the ideal between successive tap positions. Parts are guaranteed monotonic.
3 VAB = VDD, wiper (VW) = no connect.
4 INL and DNL are measured at VW with the RDAC configured as a potentiometer divider similar to a voltage output DAC. VA = VDD and VB = 0 V. DNL specification limits
of ±1 LSB maximum are guaranteed monotonic operating conditions.
5 The A, B, and W resistor terminals have no limitations on polarity with respect to each other.
6 Guaranteed by design and not subject to production test.
7 Measured at the A terminal. The A terminal is open circuited in shutdown mode.
8 The minimum voltage requirement on the VIH is 0.7 V × VDD. For example, VIH minimum = 3.5 V when VDD = 5 V. It is typical for the SCL and SDA resistors to be pulled up
to VDD. However, care must be taken to ensure that the minimum VIH is met when the SCL and SDA are driven directly from a low voltage logic controller without pull-
up resistors.
9 Different from operating power supply, power supply OTP is used one time only.
10 Different from operating current, supply current for OTP lasts approximately 400 ms for use one time only.
11 See Figure 26 for the energy plot during OTP program.
12 PDISS is calculated from (IDD × VDD). CMOS logic level inputs result in minimum power dissipation.
13 All dynamic characteristics use VDD = 5 V.
Rev. G | Page 6 of 24

7페이지


구       성 총 25 페이지수
다운로드[ AD5170.PDF 데이터시트 ]

당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는

포괄적인 데이터시트를 제공합니다.


구매 문의
일반 IC 문의 : 샘플 및 소량 구매
-----------------------------------------------------------------------

IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한
광범위한 전력 반도체를 판매합니다.

전력 반도체 전문업체

상호 : 아이지 인터내셔날

사이트 방문 :     [ 홈페이지 ]     [ 블로그 1 ]     [ 블로그 2 ]



관련 데이터시트

부품번호상세설명 및 기능제조사
AD5170

I2C Digital Potentiometer

Analog Devices
Analog Devices
AD5171

64-Position OTP Digital Potentiometer

Analog Devices
Analog Devices

DataSheet.kr       |      2020   |     연락처      |     링크모음      |      검색     |      사이트맵