Packaging information
| Package | Pins VSSOP (DGK) | 8 |
| Operating temperature range (°C) -55 to 125 |
| Package qty | Carrier 80 | TUBE |
Features for the LMH5485-SEP
- Radiation tolerant
- TID assured for every wafer lot up to 30 krad (Si)
- Single event latch-up (SEL) immune to LET = 43 MeV-cm2 /mg
- Qualified over the military temperature range: .. –55°C to 125°C
- Gain bandwidth product (GBWP): 850 MHz
- Slew rate: 1300 V/µs
- HD2, HD3: –118 dBc, –147 dBc (100 kHz, 2 VPP)
- Input voltage noise: 2.4 nV/√Hz
- Low offset drift: ±0.5 µV/°C (typical)
- Negative rail input (NRI), rail-to-rail output (RRO)
- Power supply:
- Supply voltage range: 2.7 V to 5.4 V
- Quiescent current: 10.1 mA
- Power-down capability: 2 µA (typical)
Description for the LMH5485-SEP
The LMH5485-SEP is a radiation tolerant, low-power, voltage-feedback, fully differential amplifier (FDA). This part is able to achieve a high gain bandwidth product (GBWP) of 850-MHz, allowing it to maintain excellent distortion performance over a wide range of frequencies as shown in the following figure. This wide bandwidth range is also achieved with a relatively low power consumption of 10.1-mA and broadband voltage noise of 2.4nV/√Hz. This combination of power consumption, bandwidth and noise allows the LMH5485-SEP to be well suited for power sensitive data acquisition systems with frequencies >10 MHz that require both the best signal-to-noise ratio (SNR) and spurious-free dynamic range (SFDR).
The LMH5485-SEP features the negative-rail input required when interfacing with a DC-coupled, ground-centered, source signal. This negative-rail input, with a rail-to-rail output, allows for easy interface between single-ended, ground-referenced, bipolar signal sources and a wide variety of successive approximation register (SAR), delta-sigma (ΔΣ), or pipeline ADCs using only a single 2.7 V to 5.4 V power supply. This device also features a low offset voltage drift of ±0.5 µV/°C, allowing it to maintain excellent DC performance over it’s wide temperature range of –55°C to +125°C.