Products
ADA4098-1
RECOMMENDED FOR NEW DESIGNS50 V, 1 MHz, 165 μA, Robust, Over-The-Top Precision Op Amp
- Part Models
- 3
- 1ku List Price
- Starting From $2.29
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Overview
- Ultrawide common-mode input range: −VS − 0.1 V to −VS + 70 V
- Wide power supply voltage range: +3 V to +50 V (to ±25 V for PSRR)
- Low power supply current: 165 μA per channel (typical)
- Low input offset voltage: ±35 μV maximum
- Low input offset voltage drift: ±0.5 μV/°C maximum (B grade)
- Low input voltage noise
- 1/f noise corner: 6 Hz typical
- 400 nV p-p typical at 0.1 Hz to 10 Hz
- 17 nV/√Hz typical at 100 Hz
- High speed
- GBP: 1.05 MHz typical for fTEST = 2.5 kHz
- Slew rate: 0.85 V/μs typical at ΔVOUT = 25 V
- Low power supply current shutdown: 20 μA maximum
- Low input offset current: ±700 pA maximum
- Large signal voltage gain: 126 dB minimum for ΔVOUT = 3.5 V
- CMRR: 120 dB minimum at VCM = −0.1 V to +70 V
- PSRR: 123 dB minimum at VSY = +3 V to ±25 V
- Input overdrive tolerant with no phase reversal
- ±3 kV HBM and ±1.25 kV FICDM
- Wide temperature range: −55°C to +150°C (H grade)
The ADA4098-1 and ADA4098-2 are single/dual robust, precision, rail-to-rail input and output operational amplifiers (op amps) with inputs that operate from −VS to +VS and beyond, which is referred to in this data sheet as Over-The-Top™. The devices feature offset voltages of <35 μV, input bias currents (IB) of <700 pA, and can operate on single or split supplies that range from 3 V to 50 V. The ADA4098-1 and ADA4098-2 draw 165 μA of supply current per channel.
The ADA4098-1 and ADA4098-2 Over-The-Top™ input stages have robust input protection features for abusive environments. The inputs can tolerate up to 80 V of differential voltage without damage or degradation to dc accuracy. The operating common-mode input range extends from rail-to-rail and beyond, up to 70 V > –VS, independent of the +VS supply.
The ADA4098-1 and ADA4098-2 are unity-gain stable and can drive loads requiring up to 20 mA per channel. The devices can also drive capacitive loads as large as 200 pF. The amplifiers are available with low power shutdown.
The ADA4098-1 is available in a standard, 6-lead thin small outline transistor (TSOT) package. The ADA4098-2 is available in an 8-lead standard small outline (SOIC_N) package, 8-lead mini small outline package (MSOP), and 10-lead lead-frame chip-scale package (LFCSP).
APPLICATIONS
- Industrial sensor conditioning
- Supply current sensing
- Battery and power supply monitoring
- Front-end amplifiers in abusive environments
- 4 mA to 20 mA transmitters
Documentation
Data Sheet 1
User Guide 1
Technical Articles 1
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 Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| ADA4098-1BUJZ-R5 | 6-Lead TSOT | ||
| ADA4098-1BUJZ-RL7 | 6-Lead TSOT | ||
| ADA4098-1HUJZ-RL7 | 6-Lead TSOT |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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LTspice
Models for the following parts are available in LTspice:
- ADA4098-1
- ADA4098-2
ADI Circuit Explorer™
ADI Circuit Explorer™ uses AI to interpret natural language prompts and search a database of validated analog circuit designs, helping you quickly find the best match for your needs.
Open ToolAnalog 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.
Open ToolAnalog 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.
Open ToolSignal Chain Designer
Signal Chain Designer is a web-based tool designed to create and simulate complex precision signal chains. See your circuit’s performance before you commit to your PCB: transfer function, noise, power consumption, input range, and DC error. Quickly experiment with different parts and architectures. Signal chains can be exported to LTspice for further analysis.
Open ToolLTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
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