Overview
Features and Benefits
- Wide Bandwidth, G = +2
Small Signal: 260 MHz
Large Signal (2 V p-p): 160 MHz - Low Distortion, (SFDR) Low Noise
-66 dBc Typ @ 5 MHz
-54 dBc Typ @ 20 MHz
3.8 nV√vHz Noise - 5.8 mA Typical Supply Current
- Drives 50 pF Capacitive Load
- High Speed
Slew Rate 1000 V/µs
Settling 30 ns to 0.01%, 2 V Step
±3 V to ±6 V Supply Operation
Product Details
The AD8047 and AD8048 are very high speed and wide bandwidth amplifiers. The AD8047 is unity gain stable. The AD8048 is stable at gains of two or greater. The AD8047 and AD8048, which utilize a voltage feedback architecture, meet the requirements of many applications that previously depended on current feedback amplifiers.
A proprietary circuit has produced an amplifier that combines many of the best characteristics of both current feedback and voltage feedback amplifiers. For the power (6.6 mA max) the AD8047 and AD8048 exhibit fast and accurate pulse response (30 ns to 0.01%) as well as extremely wide small signal and large signal bandwidth and low distortion. The AD8047 achieves -54 dBc distortion at 20 MHz and 250 MHz small signal and 130 MHz large signal bandwidths.
The AD8047 and AD8048's low distortion and cap load drive make the AD8047/AD8048 ideal for buffering high speed ADCs. They are suitable for 12 bit/10 MSPS or 8 bit/60 MSPS ADCs. Additionally, the balanced high impedance inputs of the voltage feedback architecture allow maximum flexibility when designing active filters.
The AD8047 and AD8048 are offered in industrial (-40°C to +85°C) temperature ranges and are available in 8-lead PDIP and SOIC packages.
An evaluation board is available for this product and may be ordered using the following product number: AD8047-EB and AD8048-EB. Schematic and layout for this evaluation board is contained in the product data sheet.
AD8047 (Gain 1 Stable) PDIP and SOIC
AD8048 (Gain 2 Stable) PDIP and SOIC
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
Documentation & Resources
-
MT-053: Op Amp Distortion: HD, THD, THD + N, IMD, SFDR, MTPR2/14/2015
-
MT-052: Op Amp Noise Figure: Don't Be Misled2/14/2015
-
MT-050: Op Amp Total Output Noise Calculations for Second-Order System2/14/2015
-
MT-049: Op Amp Total Output Noise Calculations for Single-Pole System2/14/2015
-
MT-048: Op Amp Noise Relationships: 1/f Noise, RMS Noise, and Equivalent Noise Bandwidth2/14/2015
-
MT-047: Op Amp Noise2/14/2015
-
MT-060: Choosing Between Voltage Feedback and Current Feedback Op Amps2/14/2015
-
MT-059: Compensating for the Effects of Input Capacitance on VFB and CFB Op Amps Used in Current-to-Voltage Converters2/14/2015
-
MT-033: Voltage Feedback Op Amp Gain and Bandwidth2/14/2015
-
MT-058: Effects of Feedback Capacitance on VFB and CFB Op Amps2/14/2015
-
MT-056: High Speed Voltage Feedback Op Amps2/3/2009
-
MT-032: Ideal Voltage Feedback (VFB) Op Amp12/11/2008
-
High Speed Amplifiers Selection Table2/27/2008
Tools & Simulations
SPICE Models
CIR
AD8047 SPICE Macro Model
2.64 K
Design Tools
Analog Filter Wizard
Use the Analog Filter Wizard to design low-pass, high-pass, or band-pass filters with actual op amps in minutes. As you progress through the design process, you can observe the characteristics of your filter design from ideal specifications to real world circuit behavior. Quickly evaluate the tradeoffs in op amp specifications - including gain-bandwidth, noise, and supply current – to determine the best filter design for your requirements.
Analog Photodiode Wizard
Use Photodiode Wizard to design a transimpedance amplifier circuit to interface with a photodiode. Select a photodiode from the library included in the tool, or enter custom photodiode specifications. Quickly observe tradeoffs between Bandwidth, Peaking (Q), and ENOB/SNR. Modify circuit parameters, and immediately see results in plots for pulse response, frequency response, and noise gain.
VRMS/dBm/dBu/dBV calculators
A utility to convert between standard units of power measurement and signal strength.
Power Dissipation vs Die Temp
This tool estimates die temperature and power dissipation based on the supply voltages, ambient temperature, load characteristics, and package thermal data.
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| AD8048ARZ | Material Declaration | Reliability Data | 8-Lead SOIC | |
| AD8048ARZ-REEL7 | Material Declaration | Reliability Data | 8-Lead SOIC | |
| Wafer Fabrication Data |
Support & Discussions
AD8048 Discussions
Sample & Buy
Ordering FAQs
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
Please see the latest communication from our CCO regarding lead times.
Sampling
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.
Evaluation Boards
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.