- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄5817 > AD8260ACPZ-RL (Analog Devices Inc)IC AMP VGA DIFF LN 310MA 32LFCSP PDF資料下載
參數(shù)資料
| 型號： | AD8260ACPZ-RL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 13/32頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP VGA DIFF LN 310MA 32LFCSP |
| 標(biāo)準(zhǔn)包裝： | 5,000 |
| 放大器類型： | 可變增益 |
| 電路數(shù)： | 1 |
| 輸出類型： | 差分 |
| 轉(zhuǎn)換速率： | 730 V/µs |
| -3db帶寬： | 195MHz |
| 電流 - 輸入偏壓： | 200nA |
| 電流 - 電源： | 28.3mA |
| 電流 - 輸出 / 通道： | 310mA |
| 電壓 - 電源，單路/雙路(±)： | 3.3 V ~ 10 V，±3.3 V ~ 5 V |
| 工作溫度： | -40°C ~ 105°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 32-VFQFN 裸露焊盤，CSP |
| 供應(yīng)商設(shè)備封裝： | 32-LFCSP-VQ |
| 包裝： | 帶卷 (TR) |
| 配用： | AD8260-EVALZ-ND - BOARD EVAL FOR AD8260 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁當(dāng)前第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁
AD8260
Rev. A | Page 20 of 32
THEORY OF OPERATION
OVERVIEW
The AD8260 is a self-contained transceiver intended for analog
communications using a power line as the media. Operating on
supplies as low as 3.3 V, it includes a high current driver usable
as a transmitter and a low noise digitally programmable variable
gain amplifier (DGA), usable as a receiver (see Figure 64). An
uncommitted current-feedback high frequency op amp acts as a
preamplifier and interface to the DGA and is user configured
for gains greater than 6 dB. Combined, the VGA and preamplifier
are usable at high signal levels from dc to 100 MHz, with a
small-signal 3 dB bandwidth of 230 MHz. To implement a
high current-output VGA, the VGA output can be connected
to the driver-amplifier differential input.
The small-signal 3 dB bandwidth of the driver amplifier is
195 MHz and the large-signal bandwidth is >115 MHz, even
when driving a 50 Ω load.
The device is fabricated on the Analog Devices, Inc., high speed
(eXtra Fast Complementary Bipolar) XFCB process. The pream-
plifier and DGA feature low dc offset voltage, and a nominal
gain range of 6 dB to +24 dB, a 30 dB gain span, and a differential
output for ADC driving. The power consumption is 93 mW
with a single 3.3 V supply. The supply current is typically about
28 mA when all circuits in the device are active. During normal
usage, either the driver amplifier is on or the preamplifier and
DGA are on and, therefore, the supply current in general is less
than 28 mA. The gain of the AD8260 VGA is programmed via a
4-bit parallel interface. Figure 64 shows the circuit block
diagram and basic application connections, and illustrates the
envisioned external DAC, ADC, and power-line bus interface
connections. The diagram shows the connections for single 3.3 V
supply operation; if a dual supply is available, the VMID
generator can be shut down and Pin VMDI, Pin VMDO, and
Pin VOCM need to be grounded. Note that Pin VNCM
functions as the negative supply for the bias and VMID cells,
plus the logic interfaces, and should always be tied to ground.
For optimal dynamic range, it is important that the inputs and
outputs to both the driver amplifier and the preamplifier and
the DGA output amplifier be ac-coupled in a single-supply
application. In Figure 64, the DAC and ADC are presumed to
operate on a 1.8 V or 3.3 V supply with a corresponding limited
output and input swing. The DAC outputs are currents that
point down and generate a voltage in the 50 Ω resistors that are
connected to ground. The maximum voltage with a peak DAC
output current of 15 mA is 0.75 V; if a DAC with a 20 mA peak
current is used, then the maximum voltage is 1 V per side for a
differential input signal of 2 V p-p.
The driver amplifier supports a 3 V p-p output swing on a
3.3 V supply. Because of its gain of 1.5, the maximum input
swing is 2 V p-p. The corresponding maximum output swing for
the DGA is 2.4 V p-p differential; the input to the preamplifier
can be a maximum of 0.6 V p-p.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 170M3471 | FUSE 500A 690V 1BKN/50 AR UC |
| 1.5KE24CAHE3/54 | TVS BIDIR 1.5KW 24V 5% 1.5KE |
| 1.5KE22CAHE3/54 | TVS BIDIRECT 1.5KW 22V 5% 1.5KE |
| 1.5KE180CAHE3/54 | TVS BIDIRECT 1.5KW 180V 5% 1.5KE |
| BK/GMA-V-3-R | FUSE 3A 250V FAST GLASS AXL 5X20 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD8260ACPZ-WP | 功能描述:IC AMP VGA DIFF LN 310MA 32LFCSP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:Excalibur™ 放大器類型:J-FET 電路數(shù):1 輸出類型:- 轉(zhuǎn)換速率:45 V/µs 增益帶寬積:10MHz -3db帶寬:- 電流 - 輸入偏壓:20pA 電壓 - 輸入偏移:490µV 電流 - 電源:1.7mA 電流 - 輸出 / 通道:48mA 電壓 - 電源，單路/雙路(±):4.5 V ~ 38 V，±2.25 V ~ 19 V 工作溫度:-40°C ~ 85°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-SOIC 包裝:帶卷 (TR) |
| AD8260-EVALZ | 功能描述:BOARD EVAL FOR AD8260 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 運算放大器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- |
| AD8264 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Quad, 235 MHz, DC-Coupled VGA and Differential Output Amplifier |
| AD8264ACPZ | 功能描述:IC AMP VGA DIFF QUAD LN 40LFCSP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)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(yīng)商設(shè)備封裝:14-TSSOP 包裝:剪切帶 (CT) 其它名稱:OP481GRUZ-REELCT |
| AD8264ACPZ-R7 | 功能描述:IC AMP VGA DIFF QUAD LN 40LFCSP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。