Overview
The LTC1992CMS8#TRPBF is a part of the LTC1992 family of low power, fully differential input/output amplifiers produced by Analog Devices Inc. This family consists of five fully differential amplifiers, including the LTC1992-1, LTC1992-2, LTC1992-5, and LTC1992-10, which are fixed gain blocks with gains of 1, 2, 5, and 10 respectively. The LTC1992 is an unconstrained fully differential amplifier, designed for precision and stability in various signal processing applications.
These amplifiers are known for their low power consumption, rail-to-rail input and output capabilities, and a separate internal common mode feedback path that ensures outstanding output phase balancing and reduced second-order harmonics. The VOCM pin allows for easy level shifting of signals by setting the output common mode level independently of the input common mode level.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 1 | |
| Gain-Bandwidth Product (GBW) | 3.2 | MHz |
| Supply Current (Isupply) | 0.65 | mA |
| Operating Temperature Range | 0 to 70 (CMS), -40 to 85 (IMS), -40 to 125 (HMS) | °C |
| Minimum Supply Voltage (Vs min) | 2.7 | V |
| Maximum Supply Voltage (Vs max) | 12 | V |
| Differential Input DC Offset (Vos) | 0.25 | mV |
| Input Common Mode Range (VINCMR) | (–VS) – 0.1V to (+VS) – 1.3V | V |
| Output Current per Channel | 10 | mA |
| Package Type | 8-Lead MSOP | |
| RoHS Compliance | Yes |
Key Features
- Low power consumption with a supply current of 0.65 mA.
- Fully differential input and output stages.
- Precision on-chip resistors for accurate and ultrastable gain in fixed gain versions.
- Separate internal common mode feedback path for outstanding output phase balancing and reduced second-order harmonics.
- VOCM pin for setting the output common mode level independently of the input common mode level.
- Rail-to-rail input and output capabilities.
- Stable for all capacitive loads up to 10,000 pF.
- Single supply operation from 2.7V to 12V and dual supply operation up to ±5V.
- RoHS compliant and lead-free packaging.
Applications
The LTC1992 family is suitable for a variety of applications requiring precise signal conditioning and amplification. These include:
- ADC drivers and signal conditioning in data acquisition systems.
- Audio and video signal processing where balanced signals are necessary.
- Industrial control systems requiring stable and accurate signal amplification.
- Medical devices where low noise and high precision are critical.
- Automotive and aerospace applications due to their extended temperature range options.
Q & A
- What is the typical supply current of the LTC1992?
The typical supply current of the LTC1992 is 0.65 mA.
- What are the available gain options for the LTC1992 family?
The LTC1992 family includes fixed gain blocks with gains of 1, 2, 5, and 10.
- What is the input common mode range for the LTC1992?
The input common mode range is from (–VS) – 0.1V to (+VS) – 1.3V.
- Can the LTC1992 operate in single supply configurations?
Yes, the LTC1992 can operate in single supply configurations with supply voltages as low as 2.7V.
- What is the maximum output current per channel for the LTC1992?
The maximum output current per channel is 10 mA.
- Is the LTC1992 RoHS compliant?
Yes, the LTC1992 is RoHS compliant and lead-free.
- What is the typical differential input DC offset of the LTC1992?
The typical differential input DC offset is 0.25 mV.
- What is the gain-bandwidth product (GBW) of the LTC1992?
The gain-bandwidth product (GBW) is 3.2 MHz.
- What are the package options for the LTC1992?
The LTC1992 is available in an 8-Lead MSOP package.
- What are the operating temperature ranges for the LTC1992?
The operating temperature ranges are 0°C to 70°C (CMS), -40°C to 85°C (IMS), and -40°C to 125°C (HMS).
