LT1469
Dual 90MHz, 22V/µs 16-Bit Accurate Operational Amplifier
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Overview
Features and Benefits
- 90MHz Gain Bandwidth, f = 100kHz
- Maximum Input Offset Voltage: 125μV
- Settling Time: 900ns (AV = –1, 150μV, 10V Step)
- 22V/μs Slew Rate
- Low Distortion: –96.5dB for 100kHz, 10VP-P
- Maximum Input Offset Voltage Drift: 3μV/°C
- Maximum Inverting Input Bias Current: 10nA
- Minimum DC Gain: 300V/mV
- Minimum Output Swing into 2k: ±12.8V
- Unity-Gain Stable
- Input Noise Voltage: 5nV/√Hz
- Input Noise Current: 0.6pA/√Hz
- Total Input Noise Optimized for 1kΩ < RS < 20kΩ
- Specified at ±5V and ±15V Supplies
Product Details
The LT1469 is a dual, precision high speed operational amplifier with 16-bit accuracy and 900ns settling to 150μV for 10V steps. This unique blend of precision and AC performance makes the LT1469 the optimum choice for high accuracy applications such as DAC current-to-voltage conversion and ADC buffers. The initial accuracy and drift characteristics of the input offset voltage and inverting input bias current are tailored for inverting applications.
The 90MHz gain bandwidth ensures high open-loop gain at frequency for reducing distortion. In noninverting applications such as an ADC buffer, the low distortion and DC accuracy allow full 16-bit AC and DC performance.
The 22V/μs slew rate of the LT1469 improves large signal performance compared to other precision op amps in applications such as active filters and instrumentation amplifiers.
The LT1469 is available in a space saving 4mm × 4mm leadless package, as well as in small outline and DIP packages. A single version, the LT1468, is also available.
Applications
- Precision Instrumentation
- High Accuracy Data Acquisition Systems
- 16-Bit DAC Current-to-Voltage Converter
- ADC Buffer
- Low Distortion Active Filters
- Photodiode Amplifiers
Product Lifecycle
Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Documentation & Resources
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R164 Reliability Data3/23/2018PDF25 K
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SAR ADC Drivers8/29/2016PDF276K
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High Voltage Amplifiers9/10/2013PDF368K
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Generating a ±10.24V True Bipolar Input for an 18-Bit, 1Msps SAR ADC12/17/2013
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Low Noise, Micropower Precision Op Amp Swings Outputs from Rail to Rail9/1/2003 LT Journal
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Dual Operational Amplifier Combines 16-Bit Precision with High Speed5/1/2000 LT Journal
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:
LT1469
LT1469-2
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.
PCN-PDN Information
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Support & Discussions
LT1469 Discussions
Sample & Buy
Ordering FAQs
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Buy Now Pricing
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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
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Sampling
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