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
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 |
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 | ||
| Buy Now • Request Samples | ||||||
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 | |
| Buy Now | |||
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 | |||
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
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.
