The LMH6657 and LMH6658 devices are low-cost operational amplifiers that operate from a single supply with input voltage range extending below the V−. Based on easy to use voltage feedback topology and boasting fast slew rate (700 V/µs) and high speed (140 MHz GBWP), the LMH6657 (Single) and LMH6658 (dual) can be used in high speed large signal applications. These applications include instrumentation, communication devices, set-top boxes, and so forth.
With a 3dB BW of 100 MHz (AV = +2) and DG & DP of 0.03% & 0.10° respectively, the LMH6657 and LMH6658 are well suited for video applications. The output stage can typically supply 80 mA into the load with a swing of about 1 V from either rail.
For Industrial applications, the LMH6657 and LMH6658 are excellent cost-saving choices. Input referred voltage noise is low and the input voltage can extend below V− to ease amplification of low level signals that could be at or near the system ground. With low distortion and fast settling, LMH6657 and LMH6658 can provide buffering for A/D and D/A applications.
The LMH6657 and LMH6658 versatility and ease of use is extended even further by offering these high slew rate, high-speed operational amplifiers in miniature packages such as SOT-23-5, SC70, SOIC-8, and VSSOP-8.
VS = 5 V, TA = 25°C, RL = 100 Ω (Typical Values
Unless Specified)
| Architecture | Voltage FB |
| Number of channels | 2 |
| Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) | 3 |
| Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) | 12 |
| GBW (typ) (MHz) | 140 |
| BW at Acl (MHz) | 270 |
| Acl, min spec gain (V/V) | 1 |
| Slew rate (typ) (V/µs) | 700 |
| Vn at flatband (typ) (nV√Hz) | 11 |
| Vn at 1 kHz (typ) (nV√Hz) | 11 |
| Iq per channel (typ) (mA) | 6 |
| Vos (offset voltage at 25°C) (max) (mV) | 5 |
| Rail-to-rail | In to V- |
| Features | Integrated Clamps |
| Rating | Catalog |
| Operating temperature range (°C) | -40 to 85 |
| CMRR (typ) (dB) | 84 |
| Input bias current (max) (pA) | 20000000 |
| Offset drift (typ) (µV/°C) | 2 |
| Iout (typ) (mA) | 45 |
| 2nd harmonic (dBc) | 70 |
| 3rd harmonic (dBc) | 57 |
| Frequency of harmonic distortion measurement (MHz) | 5 |
| SOIC (D) | 8 | 29.4 mm² 4.9 x 6 |
| VSSOP (DGK) | 8 | 14.7 mm² 3 x 4.9 |