The LMH6554 device is a high-performance fully differential amplifier designed to provide the exceptional signal fidelity and wide large-signal bandwidth necessary for driving 8- to 16-bit high-speed data acquisition systems. Using TI’s proprietary differential current mode input stage architecture, the LMH6554 has unity gain, small-signal bandwidth of 2.8 GHz and allows operation at gains greater than unity without sacrificing response flatness, bandwidth, harmonic distortion, or output noise performance.
The low-impedance differential output of the device is designed to drive ADC inputs and any intermediate filter stage. The LMH6554 delivers 16-bit linearity up to 75 MHz when driving 2-V peak-to-peak into loads as low as 200 Ω.
The LMH6554 is fabricated in TI’s advanced complementary BiCMOS process and is available in a space-saving 14-lead UQFN package for higher performance.
| Number of channels | 1 |
| Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) | 4.7 |
| Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) | 5.25 |
| BW at Acl (MHz) | 2800 |
| Acl, min spec gain (V/V) | 1 |
| Slew rate (typ) (V/µs) | 6200 |
| Architecture | Bipolar, Current FB, Fully Differential ADC Driver |
| Vn at flatband (typ) (nV√Hz) | 0.9 |
| Iq per channel (typ) (mA) | 52 |
| Rail-to-rail | No |
| Vos (offset voltage at 25°C) (max) (mV) | 3 |
| Operating temperature range (°C) | -40 to 125 |
| Iout (typ) (mA) | 150 |
| 2nd harmonic (dBc) | 68 |
| 3rd harmonic (dBc) | 70 |
| Frequency of harmonic distortion measurement (MHz) | 250 |
| GBW (typ) (MHz) | 2500 |
| Input bias current (max) (pA) | 8000000 |
| Features | Shutdown |
| CMRR (typ) (dB) | 83 |
| Rating | Catalog |
| UQFN (NHJ) | 14 | 6.25 mm² 2.5 x 2.5 |
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