參數(shù)資料
型號： AD8475ACPZ-WP
廠商： Analog Devices Inc
文件頁數(shù)： 13/24頁
文件大?。?/td> 0K
描述： IC FUNNEL AMP DIFF PREC 16LFCSP
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： 16-WFQFN 裸露焊盤，CSP
供應商設備封裝： 16-LFCSP-WQ（3x3）
包裝： 托盤 - 晶粒
AD8475
Data Sheet
Rev. C | Page 20 of 24
12
11
10
1
3
4
NC
–OUT
+OUT
9
VOCM
+IN 0.4x
–IN 0.8x
2
+IN 0.8x
–IN 0.4x
6
+V
S
5
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
–I
N
0.
4x
+VS
–VS
0.1F
VOUT = (V+OUT – V–OUT)
REF
+
0.1F
10F
LOW
IMPEDANCE
INPUT SOURCE
VIN
+
0.1F
10F
09432-
165
Figure 53. Typical Configuration—16-Lead LFCSP
HIGH PERFORMANCE ADC DRIVING
The AD8475 is ideally suited for broadband dc-coupled and
industrial applications. The circuit in Figure 55 shows an
industrial front-end connection for an AD8475 driving an
AD7982, a 18-bit, 1 MSPS ADC, with dc coupling on the
AD8475 input and output. (The AD7982 achieves its optimum
performance when driven differentially.) The AD8475 performs
the attenuation of a 20 V p-p input signal, level shifts it, and
converts it to a differential signal without the need for any
external components. The AD8475 eliminates the need for dual
supplies at the front end to accept large bipolar signals. It also
eliminates the need for a precision resistor network for attenua-
tion, and a transformer to drive the ADC and perform the single-
ended-to-differential conversion.
The ac and dc performance of the AD8475 are compatible with
the 18-bit, 1 MSPS AD7982 PulSAR ADC and other 16-bit and
18-bit members of the family, which have sampling rates up to
4 MSPS. Some suitable high performance differential ADCs are
listed in Table 6.
Table 6. High Performance SAR ADCs
Part
Resolution
Sample
Rate
Description
18 Bits
1.33 MSPS
True differential input,
14 mW, 2.5 V ADC
18 Bits
1 MSPS
True differential Input,
7.0 mW, 2.5 V ADC
18 Bits
400 kSPS
True differential input,
4.5 mW, 5 V ADC
18 Bits
2 MSPS
True differential input,
75 mW, 2.5 V ADC
In this example, the AD8475 is powered with a single 5 V
supply and used in a gain of 0.4, with a single-ended input
converted to a differential output. The input is a 20 V p-p
symmetric, ground-referenced bipolar signal. With an output
common-mode voltage of 2.5 V, each AD8475 output swings
between 0.5 V and 4.5 V, opposite in phase, providing an 8 V p-p
differential signal to the ADC input.
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相關代理商/技術參數(shù)
參數(shù)描述
AD8475ACPZ-WP_PROMO 制造商:Analog Devices 功能描述:OP-AMP DIFF 150MHZ 50V/US
AD8475ARMZ 功能描述:IC OP AMP R-R FUNNEL 10 MSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:2,500 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:- 轉(zhuǎn)換速率:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:45nA 電壓 - 輸入偏移:2000µV 電流 - 電源:1.4mA 電流 - 輸出 / 通道:40mA 電壓 - 電源，單路/雙路(±):3 V ~ 32 V，±1.5 V ~ 16 V 工作溫度:0°C ~ 70°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:帶卷 (TR) 其它名稱:LM324ADTBR2G-NDLM324ADTBR2GOSTR
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
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