LTC6268-10 Rail to rail output high speed amplifier 4GHZ

Description

LTC6268-10 Rail to rail output high speed amplifier 4GHZ
1、 Overview
Ltc6268-10 is a high-speed operational amplifier with 4GHz FET input and rail to rail output. The device has very low input bias current IB (typical value is only ± 3fa) and input capacitance (0.45pf). At the same time, it also has low input current noise and voltage noise. Therefore, it is an ideal choice to use it as a high-speed trans impedance amplifier. In addition, its low distortion makes it a very suitable amplifier for driving SAR ADC.
2、 Features:
Gain bandwidth product: 4GHz
Low input bias current (typical at room temperature): ± 3fa
Current noise (100kHz): 7FA / Ö Hz
Voltage noise (1MHz): 4.0nv/Ö Hz
Ultra low input capacitance CIN: 0.45pf
Rail to rail output
Gain AV ≥ 10 (may be unstable when less than 10)
The pressure swing rate is + 1500V / μ s, – 1000V / μ s
Supply voltage range: 3.1V to 5.25V
Static current: 16.5ma
Operating temperature range: - 40 ° C to 125 ° C
3、 Application:
The ltc6268-10 is ideal for photodiode and photomultiplier tube (PMT) circuits, high impedance sensor applications, and driving analog-to-digital converters (ADCs).
4、 Description of various configurable circuits: (provide complete configuration information after purchase)
1. In phase amplifier mode (default delivery mode)
2. Inverting amplifier mode
3. Transimpedance amplifier mode
5、 Index test:
Working mode: in-phase amplifier mode (input and output 50 ohm impedance matching, R6 = 2.4k, R7 = 120)
Input signal: 100mvpp
The amplitude frequency test is as follows:
频率 (Hz)
0.05M
0.1M
0.5M
1M
5M
10M
30M
50M
输出峰峰值
0.97
1.02
1.05
1.05
1.04
1.04
1.02
1.02
频率 (Hz)
70M
90M
100M
120M
140M
160M
180M
200M
输出峰峰值
1.00
0.99
0.98
0.95
0.90
0.82
0.73
0.65