Analog Devices AD549LH

Non-RoHS Compliant O-MBCY-W8 TIN LEAD Bulk op amp buffer circuit 6e-8muA -15V 1000kHz 1MHz

IC OPAMP GP 1MHZ TO99-8 / General Purpose Amplifier 1 Circuit TO-99-8

Operational Amplifier, 1 Func, 900uV Offset-Max, BIPolar, MBCY8

Op-Amp; Op Amp; +/-15V; 60 fA Supply; +/-20V; 0.5; 20 fA I/P Offset

Operational Amplifier (Op-Amp) IC; No. of Amplifiers:1; Slew Rate:3V/µs; No. of Pins:8; Operating Temperature Range:0°C to +70°C; Bandwidth:1MHz; Bias Current:0.06pA; Common Mode Ratio (CMR):100; Leaded Process Compatible:No ;RoHS Compliant: No

OP AMP, U-LOW BIAS, TO-99-8, 549; Op Amp Type:Low Input Bias; No. of Amplifiers:1; Bandwidth:1MHz; Slew Rate:3Vµs; Supply Voltage Range:± 5V to ± 18V; Amplifier Case Style:TO-99; No. of Pins:8; Operating Temperature Range:0°C to +70°C; Amplifier Type:Electrometer; Base Number:549; Gain Bandwidth:1MHz; IC Generic Number:549; IC Temperature Range:Commercial; Input Offset Voltage Max:0.9mV; Logic Function Number:549; Operating Temperature Max:70°C; Operating Temperature Min:0°C; Operational Amplifier Features:Ultra-low Input Bias; Package / Case:TO-99; Slew Rate:3V/µs; Supply Voltage + Nom:15V; Supply Voltage Max:18V; Supply Voltage Min:5V; Termination Type:Through Hole

The AD549 is a monolithic electrometer operational amplifier with very low input bias current. Input offset voltage and input offset voltage drift are laser trimmed for precision performance. The ultralow input current of the part is achieved with Topgate™ JFET technology, a process development exclusive to Analog Devices, Inc. This technology allows fabrication of extremely low input current JFETs compatible with a standard junction isolated bipolar process. The 1015 Ω common-mode impedance, which results from the bootstrapped input stage, ensures that the input current is essentially independent of the common-mode voltage. The AD549 is suited for applications that require very low input current and low input offset voltage. It excels as a preamp for a wide variety of current output transducers, such as photo-diodes, photomultiplier tubes, or oxygen sensors. The AD549 can also be used as a precision integrator or low droop sample and hold. The AD549 is pin compatible with standard FET and electrometer op amps, allowing designers to upgrade the performance of present systems at little additional cost. The AD549 is available in a TO-99 hermetic package. The case is connected to Pin 8 so that the metal case can be independently connected to a point at the same potential as the input terminals, minimizing stray leakage to the case. The AD549 is available in four performance grades. The J, K, and L versions are rated over the commercial temperature range of 0°C to +70°C. The S grade is specified over the military temperature range of −55°C to +125°C and is available processed to MIL-STD-883B, Rev. C. Extended reliability plus screening is also available. Plus screening includes 168 hour burn-in, as well as other environmental and physical tests derived from MIL-STD-883B, Rev. C. Product Highlights The AD549 input currents are specified, 100% tested, and guaranteed after the device is warmed up. They are guaranteed over the entire common-mode input voltage range. The AD549 input offset voltage and drift are laser trimmed to 0.50 mV and 15 μV/°C (AD549K), and to 1 mV and 20 μV/°C (AD549J).. A maximum quiescent supply current of 700 μA minimizes heating effects on input current and offset voltage. AC specifications include 1 MHz unity gain bandwidth and 3 V/μs slew rate. Settling time for a 10 V input step is 5 μs to 0.01%. Applications Electrometer amplifier Photodiode preamp pH electrode buffer