|
|
Programmable & Variable Gain Amplifiers (PGA/VGA/DVGA)
|
|
Digital Variable Gain Amplifiers (DVGA)
National's DVGAs, including the new LMH6521 and LMH6522, feature a unique low-Z output stage, enabling them to achieve consistent performance, even under severe output loading and ambient temperature variation. The DVGA family enables designers to use low impedance anti-aliasing filters, which improves their filter reliability and manufacturability. Target applications include IF sampling receivers, I/Q DPD signal paths and wide-bandwidth direct-conversion radios.
OIP3 (dBm)
@ f = 200MHz |
Product ID |
Channels |
Noise Figure (dB) |
HD2 (dBc) |
Gain Step Size (dB) |
Max Gain (dB) |
3 dB Bandwidth (MHz) |
Gain Range (dB) |
| +48 |
|
4 |
8.5 |
-78 |
1 |
25 |
1200 |
30 |
|
2 |
7.4 |
-84 |
0.5 |
26 |
1200 |
31 |
| 43 |
|
2 |
5.5 |
-65 |
0.5 |
22 |
1200 |
31 |
| +30 |
|
1 |
8.3 |
-72 |
6 |
30 |
600 |
42 |
|
1 |
8.5 |
-66 |
1 |
24 |
600 |
31 |
|
| |
LMH6521/2 Dual/Quad DVGAs with Superior Linearity
NEW! LMH6521 and LMH6522 dual and quad digital variable gain amplifiers (DVGA) provide superior linearity performance over a wide frequency range, making them ideal for the most challenging multi-channel wideband wireless systems.
|
|
|
Analog Variable Gain Amplifiers (VGA)
National's LMH650x variable gain amplifiers (VGA) provide attenuation control and high speed, simplifying ADC circuit design for various applications including video imaging process, filters, and variable attenuators.
|
Programmable Gain Amplifiers (PGA)
National's programmable gain amplifiers (PGA) provide a unique combination of system self-diagnostics and programmability features.
Featuring:
- LMP8358 – Zero-drift PGA features on-chip diagnostics, simplifying pressure and thermocouple bridge measurements by allowing designers to detect shorts, open circuits, and degraded source connections for more reliability and robustness
- LMP8100 – Precision rail-to-rail PGA
|
|
|
Browse All VGA/DVGA/PGA Devices
Related VGA/DVGA/PGA Resources
|
| |
