LT1251CN Video Fader and DC Gain Controlled Amplifier, DIP-14

Linear Technology LT1251 40MHz Video Fader and DC Gain Controlled Amplifier in plastic DIP. The LT1251 are 2-input, 1-output current feedback amplifiers with a linear control circuit. Typical applications include variable gain amplifiers, filters, mixers and faders.

Choosing LT1251 vs. LT1256: LT1251 includes circuitry that eliminates the need for accurate control signals around zero and full scale. For control signals of less than 2% or greater than 98%, LT1251 sets one input completely off and the other completely on, eliminating off-channel feedthrough due to offset or gain errors in the control signals. The LT1256 does not have this on/off feature and operates linearly over the complete control range (recommended for applications requiring more than 20dB of linear control range).

• Linear Technology Part#: LT1251CN
• Supply Voltage: 5V ~ 30V, ±2.5V ~ 15V
• Supply Current: 14.5mA
• Bandwidth: 20 ~ 40 MHz
• Total Harmonic Distortion (@ Gain=100%): 0.002%
• Total Harmonic Distortion (@ Gain=50%): 0.015%
• Total Harmonic Distortion (@ Gain=10%): 0.4%
• Slew Rate: 150 ~ 300 V/µs
• Package: DIP-14
• Operating Temperature: -40°C ~ 85°C
• Datasheet: LT1256.pdf