Overview
The LTC6994HS6-1#TRPBF, produced by Analog Devices Inc., is a programmable delay block that is part of the TimerBlox family of versatile silicon timing devices. This component offers a wide range of delay times, from 1µs to 33.6 seconds, making it highly versatile for various timing applications. The LTC6994 is built around a master oscillator controlled by the SET pin current (ISET) and voltage (VSET), allowing precise adjustment of the delay time using a single external resistor (RSET).
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Delay Range | 1µs | 33.6s | |||
| Output Rise Time (tr) | V+ = 5.5V | 1.1ns | 2.7ns | ns | |
| Output Fall Time (tf) | V+ = 5.5V | 1.0ns | 2.4ns | ns | |
| Propagation Delay (tPD) | V+ = 5.5V | 10ns | 24ns | ns | |
| Minimum Recognized Input Pulse Width | V+ = 3.3V | 5ns | ns | ||
| Operating Temperature Range | -40°C | 125°C | °C | ||
| Package Type | 6-Lead Plastic TSOT-23 |
Key Features
- Programmable Delay: The LTC6994 allows for a programmable delay range of 1µs to 33.6 seconds using a single external resistor (RSET).
- Master Oscillator Control: The delay is controlled by a master oscillator with a 1µs minimum period, adjustable via the SET pin current (ISET) and voltage (VSET).
- Internal Clock Divider: The internal clock divider (NDIV) is programmable to eight settings from 1 to 2^21, allowing for flexible delay configurations.
- Dynamic Adjustment: The delay time can be dynamically adjusted via a separate control voltage.
- Output Options: The LTC6994-1 delays the rising or falling edge, while the LTC6994-2 delays both transitions and offers the option to invert the output.
- Automotive Grade: Versions of this part are available with controlled manufacturing to support automotive applications, designated with a #W suffix.
Applications
- Timing and Synchronization: Ideal for applications requiring precise timing and synchronization, such as in telecommunications, industrial control systems, and medical devices.
- Automotive Systems: Suitable for automotive applications due to its robust operating temperature range and availability in automotive-grade versions.
- Debouncing and Signal Conditioning: Can be used for debouncing and signal conditioning in various electronic systems).
Q & A
- What is the delay range of the LTC6994?
The LTC6994 offers a programmable delay range from 1µs to 33.6 seconds).
- How is the delay time programmed in the LTC6994?
The delay time is programmed using a single external resistor (RSET) connected between the SET pin and GND).
- What are the different versions of the LTC6994?
The LTC6994 is available in two main versions: LTC6994-1, which delays the rising or falling edge, and LTC6994-2, which delays both transitions and offers the option to invert the output).
- What is the operating temperature range of the LTC6994?
The operating temperature range of the LTC6994 is from -40°C to 125°C).
- Is the LTC6994 suitable for automotive applications?
Yes, versions of the LTC6994 are available with controlled manufacturing to support automotive applications, designated with a #W suffix).
- What package type is the LTC6994 available in?
The LTC6994 is available in a 6-Lead Plastic TSOT-23 package).
- How does the internal clock divider work in the LTC6994?
The internal clock divider (NDIV) is programmable to eight settings from 1 to 2^21, allowing for flexible delay configurations).
- Can the delay time be dynamically adjusted in the LTC6994?
Yes, the delay time can be dynamically adjusted via a separate control voltage).
- What are some common applications of the LTC6994?
The LTC6994 is commonly used in timing and synchronization, automotive systems, and debouncing and signal conditioning applications).
- How accurate is the delay time setting in the LTC6994?
The delay time setting is accurate to ±1.7% under typical conditions, with error sources limited to RSET tolerance and the inherent accuracy of the LTC6994).
