TLE2141QDRQ1

TLE2141-Q1 is a high-performance, internally compensated op-amp fabricated using the complementary bipolar Excalibur process, and is a pin-compatible upgrade to standard industrial products. The design incorporates an input stage that simultaneously achieves low audio-band noise of 10.5 nV/√Hz with a 1/f corner at 10 Hz and a symmetrical slew rate of 40 V/μs with typical loads up to 800 pF, which is critical for low distortion and high power bandwidth in high-fidelity audio applications. A fast settling time of 340 ns to 0.1% for a 10-V step with a 2-kΩ/100-pF load is useful in fast actuator/positioning drivers; under similar test conditions, the settling time to 0.01% is 400 ns. Although the 6-MHz bandwidth is reduced to 1.8 MHz at high load levels, the device remains stable with capacitive loads up to 10 nF. For example, the TLE2141-Q1 is suited for low-droop sample-and-hold circuits and direct buffering of long cables, including 4-mA to 20-mA current loops. This particular design also exhibits improved insensitivity to inherent IC component mismatches, as demonstrated by a maximum offset voltage of 500 μV and a typical voltage drift of 1.7 μV/°C. The minimum CMRR and PSRR are 85 dB and 90 dB, respectively. Over a supply voltage range of ±2 V to ±22 V, device performance is independent of supply voltage. Although excessive input current may flow from any input that exceeds the lower common-mode input range, the inputs can operate over a voltage range of VCC- − 0.3 V to VCC+ − 1.8 V without causing phase reversal. Under light current load conditions, the all-NPN output stage provides a near rail-to-rail output swing of VCC- − 0.1 V to VCC+ − 1 V. Since the output current is internally limited, the device can be shorted to either supply indefinitely, but care must be taken to ensure the maximum package power dissipation is not exceeded. The TLE2141-Q1 can also be used as a comparator. The differential inputs at VCC± can be held without damaging the device. The typical open-loop propagation delay with TTL supply levels is 200 ns. When the device drives the output beyond the recommended output voltage swing limits, a normal indication is provided to signal output stage saturation recovery. The TLE2141-Q1 is available in an industry-standard 8-pin package. The device operates over a temperature range of −40°C to 125°C.

Key features

• Automotive-qualified
• Low noise: 10 Hz … 15 nV/√Hz, 1 kHz … 10.5 nV/√Hz
• 10000-pF load capability
• 20-mA minimum short-circuit output current
• 27-9/μs slew rate (minimum)
• High gain-bandwidth product … 5.9 MHz
• Low Vos at 25°C … 500 μV (maximum)
• Single or split supply … 4 V to 44 V
• Fast settling time: 340 ns to 0.1%, 400 ns to 0.01%
• Saturation recovery … 150 ns
• Large output swing … VCC- + 0.1V to VCC+ - 1V