Overview
Features and Benefits
AC PERFORMANCE- 500 ns Settling to 0.01% for 10 V Step
- 1.5 µs Settling to 0.0025% for 10 V Step
- 75 V/µs Slew Rate
- 0.0003% Total Harmonic Distortion(THD)
- 13 MHz Gain Bandwidth - Internal Compensation Compensation
- >200 MHz Gain Bandwidth (G = 1000) External Decompensation
- >1000 pF Capacitive Load Drive Capability with 10 V/µs Slew Rate - External Compensation
- 0.5 mV max Offset Voltage (AD744B)
- 10 µV/°C max Drift (AD744B)
- 250 V/mV min Open-Loop Gain (AD744B)
- Available in Plastic Mini-DIP, Plastic SOIC, Hermetic Cerdip, Hermetic Metal Can Packages and Chip Form
- Surface Mount (SOIC) Package Available in Tape and Reel in Accordance with EIA-481A Standard
Product Details
The AD744 is a fast-settling, precision, FET input, monolithic operational amplifier. It offers the excellent dc characteristics of the AD711 BiFET family with enhanced settling, slew rate, and bandwidth. The AD744 also offers the option of using custom compensation to achieve exceptional capacitive load drive capability.
The single-pole response of the AD744 provides fast settling: 500 ns to 0.01%. This feature, combined with its high dc precision, makes it suitable for use as a buffer amplifier for 12-bit, 14-bit or 16-bit DACs and ADCs. Furthermore, the AD744's low total harmonic distortion (THD) level of 0.0003% and gain bandwidth product of 13 MHz make it an ideal amplifier for demanding audio applications. It is also an excellent choice for use in active filters in 12-bit, 14-bit and 16-bit data acquisition systems.
The AD744 is internally compensated for stable operation as a unity gain inverter or as a noninverting amplifier with a gain of two or greater. External compensation may be applied to the AD744 for stable operation as a unity gain follower. External compensation also allows the AD744 to drive 1000 pF capacitive loads, slewing at 10 V/µs with full stability.
Alternatively, external decompensation may be used to increase the gain bandwidth of the AD744 to over 200 MHz at high gains. This makes the AD744 ideal for use as ac preamps in digital signal processing (DSP) front ends.
The AD744 is available in seven performance grades. The AD744J and AD744K are rated over the commercial temperature range of 0°C to +70°C. The AD744A, AD744B and AD744C are rated over the industrial temperature range of -40°C to +85°C. The AD744S and AD744T are rated over the military temperature range of -55°C to +125°C and are available processed to MIL-STD-883B, Rev. C.
Extended reliability PLUS screening is available, specified over the commercial and industrial temperature ranges. PLUS screening includes a 168-hour burn-in, as well as other environmental and physical tests.
The AD744 is available in an 8-pin plastic mini-DIP, 8-pin small outline, 8-pin cerdip or TO-99 metal can.
Product Lifecycle
Not Recommended for New Designs
This designates products ADI does not recommend broadly for new designs.
Evaluation Kits (1)
Documentation & Resources
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MT-053: Op Amp Distortion: HD, THD, THD + N, IMD, SFDR, MTPR2/14/2015
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MT-052: Op Amp Noise Figure: Don't Be Misled2/14/2015
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MT-050: Op Amp Total Output Noise Calculations for Second-Order System2/14/2015
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MT-049: Op Amp Total Output Noise Calculations for Single-Pole System2/14/2015
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MT-048: Op Amp Noise Relationships: 1/f Noise, RMS Noise, and Equivalent Noise Bandwidth2/14/2015
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MT-047: Op Amp Noise2/14/2015
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MT-060: Choosing Between Voltage Feedback and Current Feedback Op Amps2/14/2015
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MT-059: Compensating for the Effects of Input Capacitance on VFB and CFB Op Amps Used in Current-to-Voltage Converters2/14/2015
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MT-033: Voltage Feedback Op Amp Gain and Bandwidth2/14/2015
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MT-058: Effects of Feedback Capacitance on VFB and CFB Op Amps2/14/2015
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MT-056: High Speed Voltage Feedback Op Amps2/3/2009
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MT-032: Ideal Voltage Feedback (VFB) Op Amp12/11/2008
Tools & Simulations
LTspice
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Models for the following parts are available in LTspice:
AD744
SPICE Model
AD744 SPICE Macro Models
Design Tool
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 |
|---|---|---|---|---|
| AD744AQ | Material Declaration | Reliability Data | 8-Lead CerDIP | |
| AD744BQ | Material Declaration | Reliability Data | 8-Lead CerDIP | |
| AD744JCHIPS | Material Declaration | Reliability Data | none available | |
| AD744JNZ | Material Declaration | Reliability Data | 8-Lead PDIP | |
| AD744JRZ | Material Declaration | Reliability Data | 8-Lead SOIC | |
| AD744JRZ-REEL | Material Declaration | Reliability Data | 8-Lead SOIC | |
| AD744JRZ-REEL7 | Material Declaration | Reliability Data | 8-Lead SOIC | |
| AD744KNZ | Material Declaration | Reliability Data | 8-Lead PDIP | |
| AD744KRZ | Material Declaration | Reliability Data | 8-Lead SOIC | |
| AD744KRZ-REEL | Material Declaration | Reliability Data | 8-Lead SOIC | |
| AD744KRZ-REEL7 | Material Declaration | Reliability Data | 8-Lead SOIC | |
| AD744TH/883B | Material Declaration | Reliability Data | 8-Pin TO-99 | |
| Wafer Fabrication Data |
PCN-PDN Information
Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.
Support & Discussions
AD744 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
A Sample link will be shown above, next to the part, only for parts that are included in our sample program. Selecting the Sample button 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.