LTC6268 Datasheet – 500MHz FET Input Op Amp – Linear

Part Number : LTC6268, LTC6268IS6, LTC6268IS8

Function : 500MHz Ultra-Low Bias Current FET Input Op Amp

Package : 8 Pin SO, 6 Pin TSOT-23, 8 Pin MSOP, 10Pin DFN Type

Manufactures : Linear Technology




The LTC6268 / LTC6269 is a single/dual 500MHz FET-input operational amplifier with extremely low input bias current and low input capacitance. It also features low inputreferred current noise and voltage noise making it an ideal choice for high speed transimpedance amplifiers, CCD output buffers, and high-impedance sensor amplifiers. Its low distortion makes the LTC6268 / LTC6269 an ideal amplifier for driving SAR ADCs. It operates on 3.1V to 5.25V supply and consumes 16.5mA per amplifier. A shutdown feature can be used to lower power consumption when the amplifier is not in use.






1. Gain Bandwidth Product : 500MHz
2. –3dB Bandwidth (A = 1) : 350MHz
3. Low Input Bias Current:
(1) ±3fA Typ. Room Temperature
(2) 4pA Max at 125°C
4. Current Noise (100kHz): 5.5fA/√Hz
5. Voltage Noise (1MHz): 4.3nV/√Hz
6. Extremely Low CIN 450fF
7. Rail-to-Rail Output
8. Slew Rate: 400V/μs
9. Supply Range: 3.1V to 5.25V
10. Quiescent Current: 16.5mA

Official Homepage :

LTC6268 Datasheet


CX20921 Datasheet – Voice Input Processor

Part Number : CX20921

Function : Dual-Mic Far-Field Voice Processor

Package : 60-QFN 7mm x 7mm

Manufacturers : Conexant Systems, Synaptics


CX20921 Voice Processor


The CX20921 is a high-performance, far field voice input processor System-on-Chip (SoC). The CX20921 is the first product in this category with an integrated voice trigger function that supports a low system power Wakeon-Voice (WoV) function.

When ADC and DSP are active in the Wake-on-Voice (WoV) mode, the device consumes less than 70mW, which is well below the 0.5W European Commission (EC) 1275/2008 requirement for standby power.


CX20921 datasheet pinout


1. Low-power WoV mode with an embedded third-party speech recognition engine
2. Compatible with multiple leading embedded and server-based speech recognition vendors
3. Powerful, dual-core 32-bit DSP
4. Multiple Integrated Interchip Sound (I2S) serial data interfaces
5. Inter-Integrated Circuit (I2C) serial control interface



1. Voice-controlled Smart TV/STB
2. Smart Bluetooth/WiFi speaker
3. Voice interactive smart appliance
4. Internet of Things (IOT) devices
5. Automotive hands-free control/communication

Other data sheets within the file : CX20921-21Z, CX20921-99Z

CX20921 Datasheet PDF Download