The AD548 is a low power, precision monolithic operational amplifier. It offers both low bias current (10 pA max, warmed up) and low quiescent current (200 μA max) and is fabricated with ion-implanted FET and laser wafer trimming technologies. Input bias current is guaranteed over the AD548’s entire common-mode voltage range.The economical J grade has a maximum guaranteed input offset voltage of less than 2 mV and an input offset voltage drift of less than 20 μV/°C. This level of dc precision is achieved utilizing Analog’s laser wafer drift trimming process. The combination of low quiescent current and low offset voltage drift minimizes changes in input offset voltage due to self-heating effects.The AD548 is recommended for any dual supply op amp application requiring low power and excellent dc and ac performance. In applications such as battery-powered, precision instrument front ends and CMOS DAC buffers, the AD548’s excellent combination of low input offset voltage and drift, low bias current, and low 1/f noise reduces output errors. High common-mode rejection (82 dB, min on the “B” grade) and high open-loop gain ensures better than 12-bit linearity in high impedance, buffer applications.The AD548 is pinned out in a standard op amp configuration and is available in three performance grades. The AD548J and AD548K are rated over the commercial temperature range of 0°C to 70°C. The AD548B is rated over the industrial temperature range of –40°C to +85°C.The AD548 is available in an 8-lead plastic mini-DIP and surface-mount (SOIC) packages.PRODUCT HIGHLIGHTS A combination of low supply current, excellent dc and ac performance and low drift makes the AD548 the ideal op amp for high performance, low power applications. The AD548 is pin compatible with industry standard op amps such as the LF441, TL061, and AD542, enabling designers to improve performance while achieving a reduction in power dissipation of up to 85%. Guaranteed low input offset voltage (2 mV max) and drift (20 µV/°C max) for the AD548J are achieved utilizing Analog Devices’ laser drift trimming technology, eliminating the need for external trimming. Analog Devices specifies each device in the warmed-up condition, insuring that the device will meet its published specifications in actual use. A dual version, the AD648, is also available. Enhanced replacement for LF441 and TL061.

The AD684 is a monolithic quad sample-and-hold amplifier (SHA). It features four complete sampling channels, each controlled by an independent hold command. Each SHA is complete with an internal hold capacitor. The high accuracy SHA channels are self-contained and require no external components or adjustments. The AD684 is manufactured on a BiMOS process which provides a merger of high performance bipolar circuitry and low power CMOS logic.The AD684 is ideal for high performance, multichannel data acquisition systems. Each SHA channel can acquire a signal in less than 1 µs and retain the held value with a droop rate of less than 0.01 µV/µs. Excellent linearity and ac performance make the AD684 an ideal front end for high speed 12- and 14-bit ADCs.The AD684 has a self-correcting architecture that minimizes hold mode errors and insures accuracy over temperature. Each channel of the AD684 is capable of sourcing 5 mA and incorporates output short circuit protection.The AD684 is specified for three temperature ranges. The J grade device is specified for operation from 0 to +70°C, the A grade from -40°C to +85°C and the S grade from -55°C to +125°C.

The SSM3515 is a fully integrated, high efficiency, mono Class-D audio amplifier with digital inputs. The application circuit requires a minimum of external components and can operate from a single 4.5 V to 17 V supply. It can deliver 8.4 W of output power into an 8 Ω load or 15.8 W into an 4 Ω load from a 12 V power supply, or 31.3 W into an 4 Ω load from a 17 V power supply, all with 1% THD + N.The SSM3515 features a high efficiency, low noise modulation scheme that requires no external LC output filters. This scheme provides high efficiency even at low output power. It operates with 92% efficiency at 7 W into an 8 Ω load or 88% efficiency at 15 W into 4 Ω from a 12 V supply.Spread spectrum pulse density modulation provides lower EMI radiated emissions compared with other Class-D architectures, particularly above 100 MHz.The digital input eliminates the need for an external digital-to-analog converter (DAC). The SSM3515 has a micropower shutdown mode with a typical shutdown current of 39 nA at the 12 V PVDD supply. The device also includes pop and click suppression circuitry that minimizes voltage glitches at the output during turn on and turn off.The SSM3515 operates with or without an I2C control interface. The SSM3515 is specified over the commercial temperature range (−40°C to +85°C). It has built in thermal shutdown and output short-circuit protection. It is available in a halide-free, 20-ball, 1.8 mm × 2.2 mm wafer-level chip scale package (WLCSP).APPLICATIONS Notebooks Portable electronics Home audio

The SSM3515 is a fully integrated, high efficiency, mono Class-D audio amplifier with digital inputs. The application circuit requires a minimum of external components and can operate from a single 4.5 V to 17 V supply. It can deliver 8.4 W of output power into an 8 Ω load or 15.8 W into an 4 Ω load from a 12 V power supply, or 31.3 W into an 4 Ω load from a 17 V power supply, all with 1% THD + N.The SSM3515 features a high efficiency, low noise modulation scheme that requires no external LC output filters. This scheme provides high efficiency even at low output power. It operates with 92% efficiency at 7 W into an 8 Ω load or 88% efficiency at 15 W into 4 Ω from a 12 V supply.Spread spectrum pulse density modulation provides lower EMI radiated emissions compared with other Class-D architectures, particularly above 100 MHz.The digital input eliminates the need for an external digital-to-analog converter (DAC). The SSM3515 has a micropower shutdown mode with a typical shutdown current of 39 nA at the 12 V PVDD supply. The device also includes pop and click suppression circuitry that minimizes voltage glitches at the output during turn on and turn off.The SSM3515 operates with or without an I2C control interface. The SSM3515 is specified over the commercial temperature range (−40°C to +85°C). It has built in thermal shutdown and output short-circuit protection. It is available in a halide-free, 20-ball, 1.8 mm × 2.2 mm wafer-level chip scale package (WLCSP).APPLICATIONS Notebooks Portable electronics Home audio

Low Cost Micropower, Low Noise CMOS RRIO Quad Op Amp Features: Offset voltage: 2.2 mV maximum Low input bias current: 1 pA maximum Single-supply operation: 1.8 V to 5.5 V Low noise: 22 nV/√Hz Micropower: 50 μA/amplifier maximum over temperature No phase reversal Unity gain stable Qualified for automotive applications

Dual 600 MHz, 50 mW Current Feedback Amplifier Features: Excellent video specifications (RL = 150 Ω, G = +2) Gain flatness: 0.1 dB to 60 MHz Differential gain error: 0.01% Differential phase error: 0.02° Low power Maximum power supply current (50 mW): 5.0 mA/amp High speed and fast settling −3 dB bandwidth (G = +1): 600 MHz −3 dB bandwidth (G = +2): 500 MHz Slew rate: 1200 V/μs Settling time to 0.1%: 16 ns Low distortion THD at fC = 5 MHz: −65 dBc Third-order intercept at f1 = 10 MHz: 33 dBm SFDR at f = 5 MHz: −66 dB Crosstalk at f = 5 MHz: −60 dB High output drive Over 70 mA output current Drives up to eight back terminated 75 Ω loads (four loads/side) while maintaining good differential gain/phase performance (0.01%/0.17°) Available in 8-lead SOIC and MSOP packages

Low Cost, High Speed Rail-to-Rail Amplifier (Dual) Features:Low cost single (AD8091) and dual (AD8092) amplifiers Fully specified at +3 V, +5 V, and 5 V supplies Single-supply operation Output swings to within 25 mV of either rail High speed and fast settling on 5 V110 MHz, 3 dB bandwidth (G = +1)145 V/s slew rate50 ns settling time to 0.1% Good video specifications (G = +2)Gain flatness of 0.1 dB to 20 MHz; RL = 150 0.03% differential gain error; RL = 1 k0.03%differential phase error; RL = 1 kLow distortion 80 dBc total harmonic @ 1 MHz; RL = 100 Outstanding load drive capabilityDrives 45 mA, 0.5 V from supply railsDrives 50 pF capacitive load (G = +1) Low power of 4.4 mA per amplifier

High Performance Video Op Amp Features: High speed 140 MHz bandwidth (3 dB, G = +1) 120 MHz bandwidth (3 dB, G = +2) 35 MHz bandwidth (0.1 dB, G = + 2) 2500 V/µs slew rate 25 ns settling time to 0.1% (for a 2 V step) 65 ns settling time to 0.01% (for a 10 V step) Excellent dc precision 3 mV max input offfset voltage Low distortion: THD = -74 dB @ 10 MHz Excellent video performance (RL = 150 Ω) 0.01% differential gain, 0.01° differential phase Voltage noise of 1.9 nV/√Hz Flexible Operation Specified for ±5 V and ±15 V operation ±2.3 V output swing into a 75 Ω Load (VS = ±5 V)

Single-Supply, Low Cost Instrumentation Amplifier Features:Gain set with 1 resistor per amplifierGain = 5 to 1000InputsVoltage range to 150 mV below negative rail25 nA maximum input bias current30 nV/Hz, RTI noise @ 1 kHzPower suppliesDual supply: 2V to 12Single supply: 3V to 24V500 A maximum supply current

Single-Supply, Low Cost Instrumentation Amplifier Features:Gain set with 1 resistor per amplifierGain = 5 to 1000InputsVoltage range to 150 mV below negative rail25 nA maximum input bias current30 nV/Hz, RTI noise @ 1 kHzPower suppliesDual supply: 2V to 12Single supply: 3V to 24V500 A maximum supply current