The ADA4091-2 dual and ADA4091-4 quad are micropower, single-supply, 1.2 MHz bandwidth amplifiers featuring rail-torail inputs and outputs. They are guaranteed to operate from a +3.0 V to +30 V single supply as well as from ±1.5 V to ±15 V dual supplies.
The ADA4091-2 / ADA4091-4 features a unique input stage that allows the input voltage to exceed either supply safely without any phase reversal or latch-up; this is called overvoltage protection (OVP).
Applications for these amplifiers include portable telecommunications equipment, power supply control and protection, and interface for transducers with wide output ranges. Sensors requiring a rail-to-rail input amplifier include Hall effect, piezoelectric, and resistive transducers.
The ability to swing rail-to-rail at both the input and output enables designers, for example, to build multistage filters in single-supply systems and to maintain high signal-to-noise ratios (SNR).
The ADA4091-2 / ADA4091-4 is specified over the extended industrial temperature range of −40°C to +125°C. The ADA4091-2 / ADA4091-4 is part of the growing selection of 36 V, low power operational amplifiers from Analog Devices, Inc.,
The ADA4091-2 is available in 8-lead, plastic SOIC and 8-lead LFCSP packages. The ADA4091-4 is available in 14–lead TSSOP and 16-lead LFCSP surface-mount packages.
Applications
Features and Benefits
| AmplifiersSPICE ModelsReference Designs |
| Document | note |
| ADA4091-2/ADA4091-4: Precision Micropower, OVP, RRIO Operational Amplifier Data Sheet (Rev. H) | PDF 543.32 K |
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|---|---|---|---|---|---|
| ADA4091-2ACPZ-R2 Production | 8 ld LFCSP (3x3mm 2.44x1.6EP) | REEL 250 | -40 to 125C | 4.03 | 4.03 | Y |
| ADA4091-2ACPZ-R7 Production | 8 ld LFCSP (3x3mm 2.44x1.6EP) | REEL 1500 | -40 to 125C | 0 | 2.22 | Y |
| ADA4091-2ACPZ-RL Production | 8 ld LFCSP (3x3mm 2.44x1.6EP) | REEL 5000 | -40 to 125C | 0 | 2.22 | Y |
| ADA4091-2ARZ Production | 8 ld SOIC | OTH 98 | -40 to 125C | 2.92 | 2.22 | Y |
| ADA4091-2ARZ-R7 Production | 8 ld SOIC | REEL 1000 | -40 to 125C | 0 | 2.22 | Y |
| ADA4091-2ARZ-RL Production | 8 ld SOIC | REEL 2500 | -40 to 125C | 0 | 2.22 | Y |
| Part Number | Description | Price | RoHS |
|---|---|---|---|
| EVAL-PRAOPAMP-2CPZ | Dual CP-8 lead LFCSP Evaluation Board | 20.19 | Y |
| EVAL-PRAOPAMP-2RMZ | Dual RM-8 lead MSOP Evaluation Board | 20.19 | Y |
| EVAL-PRAOPAMP-2RZ | Dual R-8 lead SOIC Evaluation Board | 20.19 | Y |
