Analog Devices Inc. LTC1550CGN#PBF
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $8.73 | $8.73 |
| 15+ | $8.45 | $126.75 |
| 25+ | $8.27 | $206.75 |
| 50+ | $7.81 | $390.50 |
| 100+ | $6.89 | $689.00 |
| N+ | $1.38 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Analog Devices Inc. |
| Product Series | |
| Packaging | Tube | |
| Function | Step-Up/Step-Down |
| Output Configuration | Negative |
| Topology | Charge Pump |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4.5V |
| Voltage - Input (Max) | 6.5V |
| Voltage - Output (Min/Fixed) | -1.24V |
| Voltage - Output (Max) | -6.1V |
| Current - Output | 10mA |
| Frequency - Switching | 900kHz |
| Synchronous Rectifier | No |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 16-SSOP (0.154", 3.90mm Width) |
| Supplier Device Package | 16-SSOP |
| ROHS |  |
The LTC1550 is a charge pump voltage inverter from Analog Devices, producing a negative output from a 4.5V to 6.5V input. It delivers up to 10mA, suitable for low-power analog circuits. The fixed 900kHz switching frequency allows for small external capacitors, minimizing board space. Housed in a 16-SSOP package, it is ideal for space-constrained designs. Perfect for generating negative rails in precision amplifiers, CCD bias, and audio equipment.
- Low noise: 900kHz operation reduces ripple for sensitive analog circuits.
- Compact size: 16-SSOP package and small capacitors save PCB area.
- Simple implementation: No inductors, only two external capacitors needed.
- Stable output: Regulated negative rail improves system accuracy.
Negative Supply for Precision Amplifiers
The LTC1550 generates a -5V rail from a +5V input, powering high-precision op-amps in data acquisition systems, with 10mA capability for low-power signal chains.
Bias for CCD Sensors
In imaging applications, the LTC1550 provides a negative bias voltage for CCD image sensors, ensuring proper charge transfer and reducing dark current in cameras.
Audio Equipment Power
For portable audio devices, the LTC1550 creates a negative supply for headphone amplifiers, improving dynamic range and eliminating output coupling capacitors.
Level Shifters
In mixed-signal circuits, the LTC1550 shifts logic levels to negative voltages for RS-232 or ECL interfaces, simplifying power distribution.
Battery-Powered Instrumentation
With 4.5V-6.5V input, the LTC1550 can invert a 5V USB supply to -5V for portable multimeters or handheld calibrators, maintaining accuracy with low noise.
- Q: What type of converter is the LTC1550?
- A: The LTC1550 is a charge pump voltage inverter that produces a negative output.
- Q: What is the input voltage range?
- A: It operates from 4.5V to 6.5V input.
- Q: What is the maximum output current?
- A: The maximum output current is 10mA.
- Q: What is the switching frequency?
- A: The switching frequency is fixed at 900kHz.
- Q: What package is available?
- A: It comes in a 16-SSOP package.
LTC1550CGN#PBF.pdf
- Q: What type of converter is the LTC1550?
- A: The LTC1550 is a charge pump voltage inverter that produces a negative output.
- Q: What is the input voltage range?
- A: It operates from 4.5V to 6.5V input.
- Q: What is the maximum output current?
- A: The maximum output current is 10mA.
- Q: What is the switching frequency?
- A: The switching frequency is fixed at 900kHz.
- Q: What package is available?
- A: It comes in a 16-SSOP package.
