LT1468
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LT1468

90MHz, 22V/us 16-Bit Accurate Operational Amplifier

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Part Details
Part Models 14
1ku List Price Starting From $3.63
Features
  • 90MHz Gain Bandwidth, f = 100kHz
  • 22V/µs Slew Rate
  • Settling Time: 900ns (AV = -1, 150µV, 10V Step)
  • Low Distortion, −96.5dB for 100kHz, 10VP-P
  • Maximum Input Offset Voltage: 75µV
  • Maximum Input Offset Voltage Drift: 2µV/°C
  • Maximum (−) Input Bias Current: 10nA
  • Minimum DC Gain: 1000V/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 1k < RS < 20k
  • Specified at ±5V and ±15V
Additional Details
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The LT1468 is a precision high speed operational amplifier with 16-bit accuracy and 900ns settling to 150μV for 10V signals. This unique blend of precision and AC performance makes the LT1468 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 LT1468 improves large-signal performance in applications such as active filters and instrumentation amplifiers compared to other precision op amps.

The LT1468 is manufactured on a complementary bipolar process. It is available in a space saving 3mm × 3mm leadless package, as well as small outline and DIP packages.

Applications

  • 16-Bit DAC Current-to-Voltage Converter
  • Precision Instrumentation
  • ADC Buffer
  • Low Distortion Active Filters
  • High Accuracy Data Acquisition Systems
  • Photodiode Amplifiers
Part Models 14
1ku List Price Starting From $3.63

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Product Lifecycle

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Oct 11, 2022

- 22_0241

Epoxy Change from Henkel 8290 to 8290A for PDIP Package

Aug 6, 2022

- 22_0172

Laser Top Mark Conversion for PDIP Packages Assembled in ADPG [PNG]

Oct 12, 2022

- 22_0254

Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 1 of 2)

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Jun 11, 2021

- 21_0060

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Part Models

Product Lifecycle

PCN

Oct 11, 2022

- 22_0241

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Epoxy Change from Henkel 8290 to 8290A for PDIP Package

Aug 6, 2022

- 22_0172

arrow down

Laser Top Mark Conversion for PDIP Packages Assembled in ADPG [PNG]

Oct 12, 2022

- 22_0254

arrow down

Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 1 of 2)

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Jun 11, 2021

- 21_0060

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Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM

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Software & Part Ecosystem

Software & Part Ecosystem

 
LinearLab Tools
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A collection of Matlab and Python programs that provide direct access to Linear Technology’s data converter evaluation boards.

Evaluation Kit

Evaluation Kits 2

reference details image

DC2135A

LTC2378-20 and LT1468 Demo | Converts ±10V Single-Ended Signal with 2ppm Linearity (requires DC590 or DC890)

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DC2135A

LTC2378-20 and LT1468 Demo | Converts ±10V Single-Ended Signal with 2ppm Linearity (requires DC590 or DC890)

LTC2378-20 and LT1468 Demo | Converts ±10V Single-Ended Signal with 2ppm Linearity (requires DC590 or DC890)

Product Detail

Demonstration circuit 2135A shows a simple DC accurate ADC driver circuit that converts a ±10V single-ended input signal into a fully differential signal capable of driving the LTC2378-20 with a combined linearity error of only 2ppm. The LTC2378-20 is a low power, low noise 20-bit SAR ADC with a serial output that operates from a single 2.5V supply. The demo manual refers to the LTC2378-20 but applies to all parts in the family, the only difference being the maximum sample rate. The LTC2378-20 supports a ±5V fully differential input range with a 104dB SNR, consumes only 21mW and achieves ±2ppm INL max with no missing codes at 20 bits. The DC2135A is the PCB that goes with DN1032. Refer to this design note for the theory of operation for this demo circuit. An option for a pseudo differential input drive is provided.

reference details image

DC417B

DIP8, MS8, S8, SOT23-6 | Multi-Footprint General Purpose Board for Single Op. Amp

Tools & Simulations

Tools & Simulations 1

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.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

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