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| 型號： | AD8555ARZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 1/28頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP CHOPPER 2MHZ 10MA 8SOIC |
| 標(biāo)準(zhǔn)包裝： | 98 |
| 系列： | DigiTrim® |
| 放大器類型： | 斷路器（零漂移） |
| 電路數(shù)： | 1 |
| 轉(zhuǎn)換速率： | 1.2 V/µs |
| 增益帶寬積： | 2MHz |
| 電流 - 輸入偏壓： | 16nA |
| 電壓 - 輸入偏移： | 2µV |
| 電流 - 電源： | 2mA |
| 電流 - 輸出 / 通道： | 10mA |
| 電壓 - 電源，單路/雙路(±)： | 2.7 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SO |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 771 (CN2011-ZH PDF) |
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Zero-Drift, Digitally Programmable
Sensor Signal Amplifier
AD8555
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 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. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.326.87032004–2009 Analog Devices, Inc. All rights reserved.
FEATURES
Very low offset voltage: 10 μV maximum over temperature
Very low input offset voltage drift: 60 nV/°C maximum
High CMRR: 96 dB minimum
Digitally programmable gain and output offset voltage
Single-wire serial interface
Open and short wire fault detection
Low-pass filtering
Stable with any capacitive load
Externally programmable output clamp voltage for driving
low voltage ADCs
LFCSP-16 and SOIC-8 packages
2.7 V to 5.5 V operation
40°C to +125°C operation
APPLICATIONS
Automotive sensors
Pressure and position sensors
Thermocouple amplifiers
Industrial weigh scales
Precision current sensing
Strain gages
FUNCTIONAL BLOCK DIAGRAM
A3
A2
A4
A5
VDD
DAC
VSS
VDD
VSS
VDD
VSS
VCLAMP
VPOS
VSS
FILT/
DIGOUT
VOUT
A1
VDD
VSS
VNEG
R1
R3
R2
R5
R7
P4
R4
R6
RF
P3
P2
P1
04598-0-001
Figure 1.
GENERAL DESCRIPTION
The AD8555 is a zero-drift, sensor signal amplifier with digital-
ly programmable gain and output offset. Designed to easily and
accurately convert variable pressure sensor and strain bridge
outputs to a well-defined output voltage range, the AD8555 also
accurately amplifies many other differential or single-ended
sensor outputs. The AD8555 uses the ADI patented low noise
auto-zero and DigiTrim technologies to create an incredibly
accurate and flexible signal processing solution in a very com-
pact footprint.
Gain is digitally programmable in a wide range from 70 to 1,280
through a serial data interface. Gain adjustment can be fully
simulated in-circuit and then permanently programmed with
proven and reliable poly-fuse technology. Output offset voltage
is also digitally programmable and is ratiometric to the supply
voltage.
In addition to extremely low input offset voltage and input off-
set voltage drift and very high dc and ac CMRR, the AD8555
also includes a pull-up current source at the input pins and a
pull-down current source at the VCLAMP pin. This allows
open wire and shorted wire fault detection. A low-pass filter
function is implemented via a single low cost external capacitor.
Output clamping set via an external reference voltage allows the
AD8555 to drive lower voltage ADCs safely and accurately.
When used in conjunction with an ADC referenced to the same
supply, the system accuracy becomes immune to normal supply
voltage variations. Output offset voltage can be adjusted with a
resolution of better than 0.4% of the difference between VDD
and VSS. A lockout trim after gain and offset adjustment fur-
ther ensures field reliability.
The AD8555 is fully specified over the extended industrial tem-
perature range of 40°C to +125°C. Operating from single-supply
voltages of 2.7 V to 5.5 V, the AD8555 is offered in the narrow
8-lead SOIC package and the 4 mm × 4 mm 16-lead LFCSP.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD8555ARZ1 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Zero-Drift, Digitally Programmable Sensor Signal Amplifier |
| AD8555ARZ-REEL | 功能描述:IC AMP CHOPPER 2MHZ 10MA 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:DigiTrim® 標(biāo)準(zhǔn)包裝:73 系列:Over-The-Top® 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.07 V/µs 增益帶寬積:200kHz -3db帶寬:- 電流 - 輸入偏壓:1nA 電壓 - 輸入偏移:285µV 電流 - 電源:50µA 電流 - 輸出 / 通道:25mA 電壓 - 電源，單路/雙路(±):2 V ~ 44 V，±1 V ~ 22 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:16-DFN-EP（5x3） 包裝:管件 |
| AD8555ARZ-REEL1 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Zero-Drift, Digitally Programmable Sensor Signal Amplifier |
| AD8555ARZ-REEL7 | 功能描述:IC AMP CHOPPER 2MHZ 10MA 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:DigiTrim® 標(biāo)準(zhǔn)包裝:50 系列:- 放大器類型:J-FET 電路數(shù):2 輸出類型:- 轉(zhuǎn)換速率:3.5 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:30pA 電壓 - 輸入偏移:2000µV 電流 - 電源:200µA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):7 V ~ 36 V，±3.5 V ~ 18 V 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:8-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:8-PDIP 包裝:管件 |
| AD8555ARZ-REEL71 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Zero-Drift, Digitally Programmable Sensor Signal Amplifier |
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