TI LMH6642QMF/NOPB

The LMH664X series are true single-supply voltage feedback amplifiers that offer high-speed (130MHz), low-distortion (-62dBc) characteristics, and ultra-high output current (approximately 75mA), with lower cost and power consumption. The input common-mode voltage range extends 0.5V below the lower limit V- and 1V above the upper limit V+. The output voltage range of each power supply rail extends to within 40mV, allowing a wide dynamic range, which is particularly suitable for low-voltage applications. The output stage can output a current of approximately 75mA to drive large loads. The high-speed output slew rate (130V/μs) ensures that the large peak-to-peak output swing remains unchanged even at higher speeds, resulting in an excellent 40MHz full-power bandwidth at a 3V power supply. The above characteristics and low-cost advantage of the device are ideal for a variety of industrial and commercial applications.

Careful attention has been paid to ensure device stability under all operating voltages and modes. The result is a very well-behaved frequency response characteristic (0.1dB gain flatness up to 12MHz under a 150Ω load and A_V = +2) with minimal peaking (typically 2dB maximum) for any gain setting and under both heavy and light loads. This, along with a fast settling time (68ns) and low distortion, allows the device to operate well in ADC buffer, high-frequency filter applications, and other applications.

This device family offers professional-quality video performance with low DG (0.01%) and DP (0.01°) characteristics. Differential Gain and Differential Phase characteristics are also well maintained under heavy loads (150Ω) and throughout the output voltage range. The LMH664X family is available in single (LMH6642) and dual (LMH6643) configurations.

• −3dB BW (A_V = +1) 130MHz
• Supply voltage range 2.7V to 10V
• Slew rate (A_V = -1) 130V/μs
• Supply current (no load) 2.7 mA/amp
• Output short-circuit current +115mA/-145mA
• Linear output current ±75mA
• Input common-mode voltage range: 0.5V below V− to 1V above V+
• Output voltage swing from supply rail 40mV
• Input voltage noise (100kHz) 17nV/√Hz
• Input current noise (100kHz) 0.9pA/√Hz
• THD (5MHz, R_L = 2kΩ, V_0 = 2V_PP, A_V = +2) -62dBc
• Settling time 68ns
• Full characterization at 3V, 5V, and ±5V
• Overdrive recovery time 100ns
• Output short-circuit protection
• No output phase reversal when exceeding CMVR
• LMH6643QMM and LMH6642QMF are AEC-Q100 Grade 3 qualified and manufactured to automotive application-grade processes

• Active filters
• CD/DVD ROM
• ADC buffer amplifier
• Portable video equipment
• Current sense buffer automotive