The ADA4000 series of operational amplifiers are high precision, low current, low power JFET input operational amplifiers. It has high input impedance, low input bias current, wide bandwidth, fast slew rate and fast settling time, making it an ideal amplifier for driving high loads, low noise, fast response and low power applications.
The ADA4000‑1, ADA4000‑2, and ADA4000‑4 are JFET‑input operational amplifiers that combine very low bias current, high input impedance, wide bandwidth, fast slew rate, and low offset voltage. They are suited for high‑side signal conditioning, driving ADC/DAC inputs, and precision filtering.
The document includes detailed electrical characteristics, pin configurations, absolute maximum ratings, typical performance graphs, and application notes such as level shifting, buffering, and power‑line monitoring. It also contains revision history, power‑sequencing guidelines, and ESD precautions.
| Slew Rate | 20 V/µs |
|---|---|
| Gain‑Bandwidth Product | 5 MHz |
| Input Offset Voltage (typical) | 1.70 mV |
| Input Bias Current (typical) | 40 pA |
| Supply Voltage Range | +5 V to +18 V |
| Common‑Mode Rejection Ratio (typical) | 80 dB |
| Output Voltage High (typical) | 13.90 V |
| Supply Current (typical) | 1.35 mA |
The typical slew rate is 20 V/µs.
The gain‑bandwidth product is 5 MHz.
The input offset voltage ranges from 0.2 mV minimum to 1.70 mV typical and up to 3.0 mV maximum.
They operate from +5 V up to +18 V supply voltage.