Pressure and position sensors Remote security Bio sensors IR thermometers Battery-powered consumer equipment Hazard detectors
The AD8505/AD8506/AD8508 are single, dual, and quad micro-power amplifiers featuring rail-to-rail input/output swings while operating from a single 1.8 V to 5 V power supply or from dual ±0.9 V to ±2.5 V power supplies. Using a new circuit technology, these amplifiers offer zero input crossover distortion (excellent PSRR and CMRR performance) and low bias current while operating with a supply current of less than 20 μA per amplifier. This amplifier family offers the lowest noise in its power class.
This combination of features makes the AD8505/AD8506/AD8508 amplifiers ideal choices for battery-powered applications because they minimize errors due to power supply voltage variations over the lifetime of the battery and maintain high CMRR even for a rail-to-rail input op amp. Remote battery-powered sensors, handheld instrumentation, consumer equipment, hazard detection (for example, smoke, fire, and gas), and patient monitors can benefit from the features of the AD8505/AD8506/AD8508 amplifiers.
The AD8505/AD8506/AD8508 are specified for both the industrial temperature range of −40°C to +85°C and the extended industrial temperature range of −40°C to +125°C. The AD8505 single ampli-fier is available in a tiny 5-lead SOT-23 package. The AD8506 dual amplifier is available in 8-lead MSOP and 8-ball WLCSP packages. The AD8508 quad amplifier is available in 14-lead TSSOP and 14-ball WLCSP packages. The AD8505/AD8506/AD8508 are members of a growing series of zero crossover distortion op amps offered by Analog Devices, Inc., including the ADA4505-1/ ADA4505-2/ADA4505-4, that operate from a single 1.8 V to 5 V supply or from dual ±0.9 V to ±2.5 V power supplies.
Applications
Features and Benefits | Amplifiers
SPICE Models |
| Document | note |
| AD8505/AD8506/AD8508: 20 μA Maximum, Rail-to-Rail I/O, Zero Input Crossover Distortion Amplifiers Data Sheet (Rev. E) | PDF 634 kB |
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|---|---|---|---|---|---|
| AD8508ACBZ-REEL Last Time Buy | 14 Ball WLCSP | REEL 10000 | -40 to 125C | 0 | 1.02 | Y |
| AD8508ACBZ-REEL7 Production | 14 Ball WLCSP | REEL 3000 | -40 to 125C | 0 | 1.02 | Y |
| AD8508ARUZ Production | 14 ld TSSOP | OTH 96 | -40 to 125C | 1.41 | 1.02 | Y |
| AD8508ARUZ-REEL Production | 14 ld TSSOP | REEL 2500 | -40 to 125C | 0 | 1.02 | Y |
| Part Number | Description | Price | RoHS |
|---|---|---|---|
| EVAL-PRAOPAMP-4RUZ | QUAD 14-Lead TSSOP Evaluation Board | 20.19 | Y |
| EVAL-PRAOPAMP-4RZ | QUAD R-14 lead SOIC Evaluation Board | 20.19 | Y |
