The ADA4000-1/ADA4000-2/ADA4000-4 are low-cost, precision JFET input operational amplifiers with high slew rate, fast settling time, low offset voltage, and low power consumption.
The ADA4000‑1, ADA4000‑2, and ADA4000‑4 are JFET‑input operational amplifiers that combine high input impedance, ultra‑low bias current, wide bandwidth, and fast slew rate. Their common‑mode voltage range includes the positive supply, making them ideal for high‑side signal conditioning and for driving ADC inputs or buffering DAC outputs.
The document lists detailed electrical characteristics, absolute maximum ratings, thermal resistance data, and typical performance curves. It also covers application notes such as output phase reversal, input noise considerations, and capacitive‑load driving techniques, including snubber network recommendations.
| Slew Rate | 20 V/µs |
|---|---|
| Bandwidth | 5 MHz |
| Input Offset Voltage (max) | 1.70 mV |
| Input Bias Current (typical) | 40 pA |
| Supply Voltage Range | ±4 V to ±18 V |
| Voltage Noise Density | 16 nV/√Hz |
| Short‑Circuit Current (ISC) | ±28 mA |
The devices operate from ±4 V up to ±18 V supply voltage.
The slew rate is 20 V/µs.
Yes, they can drive up to 1000 pF of capacitive load without oscillation in unity‑gain configurations.