LMH6657 - 270MHz Single Supply, Single & Dual Operational Amplifiers

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 (A_V = +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.

V_S = 5 V, T_A = 25°C, R_L = 100 Ω (Typical Values
Unless Specified)

• −3dB BW (A_V = +1) 270 MHz
• Supply Voltage Range 3 V to 12 V
• Slew Rate, (V_S = ±5 V) 700 V/µs
• Supply Current 6.2 mA/amp
• Output Current +80/−90 mA
• Input Common-Mode Volt. 0.5 V Beyond V⁻, 1.7 V
  from V⁺
• Output Voltage Swing (R_L = 2 kΩ) 0.8 V from
  Rails
• Input Voltage Noise 11 nV/√Hz
• Input Current Noise 2.1 pA√Hz/
• DG Error 0.03%
• DP Error 0.10°
• THD (5MHz) −55 dBc
• Settling Time (0.1%) 37ns
• Fully Characterized for 5 V, and ±5 V
• Output Overdrive Recovery 18 ns
• Output Short Circuit Protected⁽¹⁾
• No Output Phase Reversal With CMVR Exceeded