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Product Detailed Parameters
- Description：IC VARIABLE GAIN 1 CIRC 20TSSOPJ
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Bulk
- Amplifier Type：Variable Gain
- Number of Circuits：1
- Output Type：Differential
- Slew Rate：-
- Gain Bandwidth Product：-
- Current - Input Bias：-
- Voltage - Input Offset：-
- Current - Supply：180mA
- Current - Output / Channel：-
- Voltage - Supply Span (Min)：4.75 V
- Voltage - Supply Span (Max)：5.25 V
- Operating Temperature：-20°C ~ 75°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：20-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：20-TSSOPJ
- -3db Bandwidth：-
Download product information
Overview
The LA7791T-TLM-E is a variable gain amplifier IC manufactured by onsemi, designed for applications requiring differential output configurations. It operates with a supply current of 180µA per amplifier and features a gain bandwidth of 1.8MHz alongside a slew rate of 2.1V/µs. The component is housed in a 20-TSSOPJ package and is available in Reel, Cut Tape, and MouseReel packaging formats. This device is classified under operational amplifiers and specifically functions as an AGC (Automatic Gain Control) amplifier.
Feature Summary
- Provides variable gain amplification capabilities suitable for dynamic signal processing requirements.
- Features a differential type output configuration to ensure signal integrity in noise-sensitive environments.
- Designed with low power consumption characteristics, operating at 180µA per amplifier.
Applications
- Audio systems requiring automatic gain control
- Communication equipment needing variable gain stages
- Signal processing circuits utilizing differential outputs
Procurement Notes
Verify the End-of-Life status before procurement, as this component may be discontinued or subject to production suspension. Confirm that the 20-TSSOPJ package matches your PCB footprint requirements. Ensure compatibility with existing AGC circuit designs given the specific gain bandwidth and slew rate parameters. Check for any recent product change notifications regarding manufacturing site or material changes.
Selection Notes
Select this component when a differential output variable gain amplifier is required with low quiescent current. The 1.8MHz gain bandwidth and 2.1V/µs slew rate define its frequency response limits. Consider the 20-TSSOPJ package size for space-constrained designs. Evaluate if the specific AGC functionality aligns with system control loops compared to standard operational amplifiers.
Part Context
This part belongs to onsemi's Treo analog and mixed-signal platform, which utilizes BCD 65nm node technology. The LA7791 series is positioned within the company's portfolio of specialized amplifier ICs. It serves as a legacy or niche solution for AGC applications, distinct from general-purpose op-amps like the NCV33172 series mentioned in broader catalog contexts.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Due to the End-of-Life notification, alternative sourcing through authorized distributors or secondary markets may be necessary. Verify functional equivalence carefully if considering generic variable gain amplifiers.
