LT1468 - 90MHz, 22V/us 16-Bit Accurate Operational Amplifier

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

Typical Application

LT1468 Typical Application
LT1468 Typical Application

Description

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.

Packaging

CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.

For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
Drawing
RoHS
LT1468ACDD#PBF 3x3 DFN-8 DD C 05-08-1698 Yes
LT1468ACDD#TRPBF 3x3 DFN-8 DD C 05-08-1698 Yes
LT1468AIDD#PBF 3x3 DFN-8 DD I 05-08-1698 Yes
LT1468AIDD#TRPBF 3x3 DFN-8 DD I 05-08-1698 Yes
LT1468CDD#PBF 3x3 DFN-8 DD C 05-08-1698 Yes
LT1468CDD#TRPBF 3x3 DFN-8 DD C 05-08-1698 Yes
LT1468CN8#PBF N-8 N C 05-08-1510 (N8) Yes
LT1468CS8#PBF SO-8 S8 C 05-08-1610 (S8) Yes
LT1468CS8#TRPBF SO-8 S8 C 05-08-1610 (S8) Yes
LT1468IDD#PBF 3x3 DFN-8 DD I 05-08-1698 Yes
LT1468IDD#TRPBF 3x3 DFN-8 DD I 05-08-1698 Yes
LT1468IN8#PBF N-8 N I 05-08-1510 (N8) Yes
LT1468IS8#PBF SO-8 S8 I 05-08-1610 (S8) Yes
LT1468IS8#TRPBF SO-8 S8 I 05-08-1610 (S8) Yes


LT1468 Package Drawing
LT1468 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number Package Temp Price
(1-99)
Price
(1k)*
RoHS
LT1468ACDD#PBF 3x3 DFN-8 C $5.17 $3.57 Yes
LT1468ACDD#TRPBF 3x3 DFN-8 C $3.63 Yes
LT1468AIDD#PBF 3x3 DFN-8 I $6.06 $4.19 Yes
LT1468AIDD#TRPBF 3x3 DFN-8 I $4.25 Yes
LT1468CDD#PBF 3x3 DFN-8 C $3.35 $2.95 Yes
LT1468CDD#TRPBF 3x3 DFN-8 C $3.01 Yes
LT1468CN8#PBF N-8 C $3.35 $2.95 Yes
LT1468CS8#PBF SO-8 C $3.35 $2.95 Yes
LT1468CS8#TRPBF SO-8 C $3.01 Yes
LT1468IDD#PBF 3x3 DFN-8 I $4.00 $3.55 Yes
LT1468IDD#TRPBF 3x3 DFN-8 I $3.61 Yes
LT1468IN8#PBF N-8 I $4.00 $3.55 Yes
LT1468IS8#PBF SO-8 I $4.00 $3.55 Yes
LT1468IS8#TRPBF SO-8 I $3.61 Yes
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* The USA 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 Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Part Number Description Price Documentation
DC2135A LTC2378-20 and LT1468 Demo | Converts ±10V Single-Ended Signal with 2ppm Linearity (req. DC590 or DC890) $200.00
DC417B DIP8, MS8, S8, SOT23-6 | Multi-Footprint General Purpose Board for Single Op. Amp $25.00
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Companion Boards

Part Number Description Price Documentation
DC590B Isolated USB Serial Controller for Linear Technology QuikEval-Compatible Demo Boards $50.00
DC890B USB Data Acquisition Controller, for PScope Evaluation Kits (up to 250Mbps, CMOS/LVDS) $300.00
Buy Now
Click here to view our complete list of demo boards

Applications

  • 16-Bit DAC Current-to-Voltage Converter
  • Precision Instrumentation
  • ADC Buffer
  • Low Distortion Active Filters
  • High Accuracy Data Acquisition Systems
  • Photodiode Amplifiers

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Design Tools

LTspice

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Models for the following parts are available in LTspice:
LT1468
LT1468-2
LT1468N

Technical Support