DocumentationDatasheet
Application Note
- AN118 - High Voltage, Low Noise, DC/DC Converters
- AN57 - Video Circuit Collection
- AN67 - Linear Technology Magazine Circuit Collection, Volume III
- AN70 - A Monolithic Switching Regulator with 100µV Output Noise
- AN72 - A Seven-Nanosecond Comparator for Single Supply Operation
- AN85 - Low Noise Varactor Biasing with Switching Regulators: Vanquishing Villainous Vitiators Vis-à-Vis Vital Varactors
Design Note
Reliability Data
LT Journal
- Mar 2002 A Composite Amplifier Topology Wrings More Performance Out of the LTC1597 16-Bit Current Output DAC
- Nov 1998 Level Shift Allows CFA Video Amplifier to Swing to Ground on a Single Supply
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Features
- 140MHz Bandwidth: AV = 2, RL = 150 ohms
- 1100V/µs Slew Rate
- Low Cost
- 30mA Output Drive Current
- 0.01% Differential Gain
- 0.01° Differential Phase
- High Input Impedance: 14M ohms, 3pF
- Wide Supply Range: ±2V to ±15V
- Shutdown Mode: IS <250µA
- Low Supply Current: IS = 10mA
- Inputs Common Mode to Within 1.5V of Supplies
- Outputs Swing Within 0.8V of Supplies
Typical Application
Description
The LT1227 is a current feedback amplifier with wide bandwidth and excellent video characteristics. The low differential gain and phase, wide bandwidth, and 30mA output drive current make the LT1227 well suited to drive cables in video systems.
A shutdown feature switches the device into a high impedance, low current mode, allowing multiple devices to be connected in parallel and selected. Input to output isolation in shutdown is 70dB at 10MHz for input amplitudes up to 10VP-P. The shutdown pin interfaces to open collector or open drain logic and takes only 4mµ to enable or disable.
The LT1227 comes in the industry standard pinout and can upgrade the performance of many older products. For a dual or quad version, see the LT1229/1230 data sheet.
The LT1227 is manufactured on Linear Technology’s proprietary complementary bipolar process.
N-8,SO-8,CERDIP-8
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) |
Price (1k)* |
|---|---|---|---|---|---|
| LT1227CN8#PBF | PDIP | 8 | C | $3.08 | $2.40 |
| LT1227CS8#PBF | SO | 8 | C | $3.58 | $2.85 |
| LT1227CS8#TRPBF | SO | 8 | C | $2.91 | |
| LT1227MJ8 | CERDIP | 8 | M | $43.95 | |
| LT1227CN8 | PDIP | 8 | C | $6.16 | $4.80 |
| LT1227CS8 | SO | 8 | C | $7.16 | $5.70 |
| LT1227CS8#TR | SO | 8 | C | $5.82 |
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 |
|---|---|---|---|
| DC417B | DIP8, MS8, S8, SOT23-6 | Multi-Footprint General Purpose Board for Single Op. Amp | $25.00 |