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參數(shù)資料
| 型號： | AD8475ARMZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 1/24頁 |
| 文件大小： | 0K |
| 描述： | IC OP AMP R-R FUNNEL 10 MSOP |
| 設計資源： | Precision Single-Supply Differential ADC Driver for Industrial-Level Signals (CN0180) |
| 標準包裝： | 50 |
| 放大器類型： | 差分 |
| 電路數(shù)： | 1 |
| 輸出類型： | 差分，滿擺幅 |
| 轉(zhuǎn)換速率： | 50 V/µs |
| -3db帶寬： | 150MHz |
| 電流 - 電源： | 3mA |
| 電流 - 輸出 / 通道： | 110mA |
| 電壓 - 電源，單路/雙路(±)： | 3 V ~ 10 V，±1.5 V ~ 5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 10-TFSOP，10-MSOP（0.118"，3.00mm 寬） |
| 供應商設備封裝： | 10-MSOP |
| 包裝： | 管件 |
Precision, Selectable Gain,
Fully Differential Funnel Amplifier
Data Sheet
Rev. C
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
2010–2014 Analog Devices, Inc. All rights reserved.
FEATURES
Precision attenuation: G = 0.4, G = 0.8
Fully differential or single-ended input/output
Differential output designed to drive precision ADCs
Drives switched capacitor and Σ-Δ ADCs
Rail-to-rail output
VOCM pin adjusts output common-mode voltage
Robust overvoltage protection up to ±15 V (VS = +5 V)
Single supply: 3 V to 10 V
Dual supplies: ±1.5 V to ±5 V
High performance
Suited for driving 18-bit converters up to 4 MSPS
10 nV/√Hz output noise
3 ppm/°C gain drift
500 μV maximum output offset
50 V/μs slew rate
Low power: 3.2 mA supply current
APPLICATIONS
ADC drivers
Differential instrumentation amplifier building blocks
Single-ended-to-differential converters
GENERAL DESCRIPTION
The AD8475 is a fully differential, attenuating amplifier with
integrated precision gain resistors. It provides precision attenuation
(by 0.4 or 0.8), common-mode level shifting, and single-ended-to-
differential conversion along with input overvoltage protection.
Power dissipation on a single 5 V supply is only 16 mW.
The AD8475 is a simple to use, fully integrated precision gain
block, designed to process signal levels of up to ±10 V on a single
supply. It provides a complete interface to make industrial level
signals directly compatible with the differential input ranges of low
voltage high performance 16-bit or 18-bit single-supply successive
approximation (SAR) analog-to-digital converters (ADCs).
The AD8475 comes with two standard pin-selectable gain
options: 0.4 and 0.8. The gain of the part is set by driving the
input pin corresponding to the appropriate gain.
The AD8475 also provides overvoltage protection from large
industrial input voltages up to ±15 V while operating on a single
5 V supply. The VOCM pin adjusts the output voltage common
mode for precision level shifting, to match the ADC’s input range
and maximize dynamic range.
FUNCTIONAL BLOCK DIAGRAMS
12
11
10
1
3
4
NC
–OUT
9
VOCM
+IN 0.4x
–IN 0.8x
2
+IN 0.8x
–IN 0.4x
6
+V
S
5
–I
N
0.
4x
7
+V
S
8
+V
S
16
+
IN
0.
4x
15
–V
S
14
–V
S
13
–V
S
1k
1.25k
1k
AD8475
1.25k
NC = NO CONNECT
09432-
001
Figure 1. 16-Lead LFCSP
NC = NO CONNECT
1k
1.25k
AD8475
–I
N
0.
8x
1
–I
N
0.
4x
2
+V
S
3
V
O
CM
4
+
O
UT
5
+
IN
0.
8x
10
+
IN
0.
4x
9
–V
S
8
NC
7
–O
UT
6
1.25k
09432-
002
Figure 2. 10-Lead MSOP
The AD8475 works extremely well with SAR, Σ-Δ, and pipeline
converters. The high current output stage of the part allows it to
drive the switched capacitor front-end circuits of many ADCs with
minimal error.
Unlike many differential drivers in the market, the AD8475 is a
high precision amplifier. With 500 V maximum output offset,
10 nV/√Hz output noise, and 112 dB THD + N, the AD8475
pairs well with high accuracy converters. Considering its low power
consumption and high precision, the slew-enhanced AD8475 has
excellent speed, settling to 18-bit precision for 4 MSPS acquisition.
The AD8475 is available in a space-saving 16-lead 3 mm × 3 mm
LFCSP package and a 10-lead MSOP package. It is fully specified
over the 40°C to +85°C temperature range.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AD8475ARMZ_PROMO | 制造商:Analog Devices 功能描述:IC OP AMP R-R FUNNEL MSOP- |
| AD8475ARMZ-R7 | 功能描述:差分放大器 Funnel Amp/Next Gen AD8275 RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 Channel 帶寬:2.4 GHz 可用增益調(diào)整:6 dB to 26 dB 輸入補償電壓: 共模抑制比（最小值）:- 40 dB 工作電源電壓:4.75 V to 5.25 V 電源電流:100 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:WQFN-24 封裝:Reel |
| AD8475ARMZ-RL | 功能描述:差分放大器 Funnel Amp/Next Gen AD8275 RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 Channel 帶寬:2.4 GHz 可用增益調(diào)整:6 dB to 26 dB 輸入補償電壓: 共模抑制比（最小值）:- 40 dB 工作電源電壓:4.75 V to 5.25 V 電源電流:100 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:WQFN-24 封裝:Reel |
| AD8475BRMZ | 功能描述:IC FUNNEL AMP DIFF PREC 10MSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:1 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.028 V/µs 增益帶寬積:105kHz -3db帶寬:- 電流 - 輸入偏壓:3nA 電壓 - 輸入偏移:100µV 電流 - 電源:3.3µA 電流 - 輸出 / 通道:12mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 12 V，±1.35 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:14-TSSOP 包裝:剪切帶 (CT) 其它名稱:OP481GRUZ-REELCT |
| AD8475BRMZ-R7 | 功能描述:IC FUNNEL AMP DIFF PREC 10MSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝: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） 供應商設備封裝:8-PDIP 包裝:管件 |
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