雙路、高輸出電流、高速運算放大器
| Architecture | Voltage FB |
| Number of channels (#) | 2 |
| Total supply voltage (Min) (+5V=5, +/-5V=10) | 5 |
| Total supply voltage (Max) (+5V=5, +/-5V=10) | 12 |
| GBW (Typ) (MHz) | 180 |
| BW @ Acl (MHz) | 90 |
| Acl, min spec gain (V/V) | 2 |
| Slew rate (Typ) (V/us) | 170 |
| Vn at flatband (Typ) (nV/rtHz) | 4.5 |
| Vn at 1 kHz (Typ) (nV/rtHz) | 4.5 |
| Iq per channel (Typ) (mA) | 6.2 |
| Vos (offset voltage @ 25 C) (Max) (mV) | 5.5 |
| Rail-to-rail | In to V- |
| Features | Decompensated |
| Rating | Catalog |
| Operating temperature range (C) | -40 to 150 |
| CMRR (Typ) (dB) | 110 |
| Input bias current (Max) (pA) | 14000000 |
| Offset drift (Typ) (uV/C) | 5 |
| Output current (Typ) (mA) | 200 |
| 2nd harmonic (dBc) | 92 |
| 3rd harmonic (dBc) | 95 |
| Frequency of harmonic distortion measurement (MHz) | 1 |
- High Output Drive
- ?19.2 VPP Differential Output Voltage,
RL = 50 Ω - ?9.6 VPP Single-ended Output Voltage,
RL = 25 Ω
- ?19.2 VPP Differential Output Voltage,
- High Output Current
- ?±200 mA @ VO = 9 VPP, VS = 12 V
- Low Distortion
- ?105 dB SFDR @ 100 kHz, VO = 8.4 VPP,
RL = 25 Ω - ?98 dB SFDR @ 1MHz, VO = 2 VPP,
RL = 100 Ω
- ?105 dB SFDR @ 100 kHz, VO = 8.4 VPP,
- High Speed
- ?90 MHz 3 dB Bandwidth (G = 2)
- ?135 V/μs Slew Rate
- Low Noise
- ?3.1 nV/√Hz: Input Noise Voltage
- ?1.8 pA/√Hz: Input Noise Current
- Low Supply Current: 7.2mA/amp
- Single-supply Operation: 5 V to 12 V
- Stable for Gain of +2V/V or Higher
- Available in 8-pin SOIC and SO PowerPAD (DDA)
The LMH6672 is a low cost, dual high speed op amp capable of driving signals to within 1 V of the power supply rails. It features the high output drive with low distortion required for the demanding application of a single supply xDSL line driver.
When connected as a differential output driver, the LMH6672 can drive a 50-? load to 16.8 VPP swing with only ?98 dBc distortion, fully supporting the peak upstream power levels for upstream full-rate ADSL. The LMH6672 is fully specified for operation with 5-V and 12-V supplies. Ideal for PCI modem cards and xDSL modems.
