The OPA2211AIDDA is a low power precision Operational Amplifier achieves very low 1.1nV/√Hz noise density with a supply current of only 3.6mA. This amplifier offers rail-to-rail output swing, which maximizes dynamic range. The extremely low voltage and low current noise, high speed and wide output swing of the op-amp made an excellent choice as a loop filter amplifier in PLL applications. In precision data acquisition applications, the OPA211 series of the op-amp provides 700ns settling time to 16-bit accuracy throughout 10V output swings. This AC performance, combined with only 125µV of offset and 0.35µV/°C of drift over-temperature, makes the op-amp ideal for driving high-precision 16-bit analogue-to-digital converters (ADCs) or buffering the output of high-resolution digital-to-analogue converters (DACs).
DESCRIPTION The OPA211 series of precision operational amplifiers achieves very low 1.1nV/√Hz noise density with a supply current of only 3.6mA. This series also offers rail-to-rail output swing, which maximizes dynamic range. The extremely low voltage and low current noise, high speed, and wide output swing of the OPA211 series make these devices an excellent choice as a loop filter amplifier in PLL applications. FEATURES • LOW VOLTAGE NOISE: 1.1nV/√Hz at 1kHz • INPUT VOLTAGE NOISE: 80nVPP(0.1Hz to 10Hz) • THD+N: –136dB (G = 1, f = 1kHz) • OFFSET VOLTAGE: 125µV (max) • OFFSET VOLTAGE DRIFT: 0.35µV/°C (typ) • LOW SUPPLY CURRENT: 3.6mA/Ch (typ) • UNITY-GAIN STABLE • GAIN BANDWIDTH PRODUCT: 80MHz (G = 100) 45MHz (G = 1) • SLEW RATE: 27V/µs • 16-BIT SETTLING: 700ns • WIDE SUPPLY RANGE: ±2.25V to ±18V, +4.5V to +36V • RAIL-TO-RAIL OUTPUT • OUTPUT CURRENT: 30mA • DFN-8 (3mm × 3mm), MSOP-8, AND SO-8 APPLICATIONS • PLL LOOP FILTER • LOW-NOISE, LOW-POWER SIGNAL PROCESSING • 16-BIT ADC DRIVERS • DAC OUTPUT AMPLIFIERS • ACTIVE FILTERS • LOW-NOISE INSTRUMENTATION AMPS • ULTRASOUND AMPLIFIERS • PROFESSIONAL AUDIO PREAMPLIFIERS • LOW-NOISE FREQUENCY SYNTHESIZERS • INFRARED DETECTOR AMPLIFIERS • HYDROPHONE AMPLIFIERS • GEOPHONE AMPLIFIERS • MEDICAL
The OPA544T is a high-voltage/high-current Operational Amplifier, suitable for driving a wide variety of high power loads. High performance FET operation amplifier circuitry and high power output stage are combined on a single monolithic chip. The OPA544T is protected by internal current limit and thermal shutdown circuits. Its copper tab allows easy mounting to a heat sink for excellent thermal performance. It is specified for operation over the extended industrial temperature range, -40 to +85°C.