Applications
The ADA4891-1 (single), ADA4891-2 (dual), ADA4891-3 (triple), and ADA4891-4 (quad) are CMOS, high speed amplifiers that offer high performance at a low cost. The amplifiers feature true single-supply capability, with an input voltage range that extends 300 mV below the negative rail.
In spite of their low cost, the ADA4891 family provides high performance and versatility. The rail-to-rail output stage enables the output to swing within 50 mV of each rail, enabling maximum dynamic range.
The ADA4891 family of amplifiers is ideal for imaging applications, such as consumer video, CCD buffers, and contact image sensor buffers. Low distortion and fast settling time also make them ideal for active filter applications.
The ADA4891-1/ADA4891-2/ADA4891-3/ADA4891-4 are available in a wide variety of packages.
The ADA4891-1 is available in 8-lead SOIC and 5-lead SOT-23 packages.
The ADA4891-2 is available in 8-lead SOIC and 8-lead MSOP packages.
The ADA4891-3 and ADA4891-4 are available in 14-lead SOIC and 14-lead TSSOP packages.
The amplifiers are specified to operate over the extended temperature range of −40°C to +125°C.
Features and Benefits−3 dB bandwidth: 220 MHz (G = +1) Slew rate: 170 V/μs Settling time to 0.1%: 28 ns 0.1 dB gain flatness: 25 MHz Differential gain error: 0.05% Differential phase error: 0.25° Wide supply range: 2.7 V to 5.5 V Output swings to within 50 mV of supply rails 4.4 mA per amplifier | AmplifiersSPICE Models |
| Document | note |
| ADA4891-1/ADA4891-2/ADA4891-3/ADA4891-4: Low Cost CMOS, High Speed, Rail-to-Rail Amplifiers Data Sheet (Rev. F) | PDF 646 kB |
| Document | note |
| UG-838: Evaluation Board for Single, High Speed Op Amps Offered in 5-Lead SOT-23 and 6-Lead SOT-23 Packages | PDF 184.4 K |
| UG-755: 8-Lead SOIC Amplifier Evaluation Board User Guide | PDF 276 K |
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|---|---|---|---|---|---|
| ADA4891-1ARJZ-R7 Production | 5 ld SOT-23 | REEL 3000 | -40 to 125C | 0 | 0.49 | Y |
| ADA4891-1ARJZ-RL Production | 5 ld SOT-23 | REEL 10000 | -40 to 125C | 0 | 0.49 | Y |
| ADA4891-1ARZ Production | 8 ld SOIC | OTH 98 | -40 to 125C | 0.58 | 0.49 | Y |
| ADA4891-1ARZ-R7 Production | 8 ld SOIC | REEL 1000 | -40 to 125C | 0 | 0.49 | Y |
| ADA4891-1ARZ-RL Production | 8 ld SOIC | REEL 2500 | -40 to 125C | 0 | 0.49 | Y |
| ADA4891-1WARJZ-R7 Production | 5 ld SOT-23 | REEL 3000 | -40 to 125C | 0 | 0.61 | Y |
| Part Number | Description | Price | RoHS |
|---|---|---|---|
| EVAL-HSOPAMP-1CPZ | Evaluation Board for 8-LD LFCSP | 18.25 | Y |
| EVAL-HSOPAMP-1KSZ | Evaluation Bare Board for 5 and 6-lead SC70 Package | 18.25 | Y |
| EVAL-HSOPAMP-1RJZ | Evaluation Bare Board for SOT-23 Package | 18.25 | Y |
| EVAL-HSOPAMP-1RZ | Evaluation Bare Board for 8-lead SOIC Package | 18.25 | Y |
| EVAL-HSOPAMP-E-1RZ | Evaluation Bare Board for 8 Lead SOIC dedicated feedback with epad connection | 18.25 | Y |
| EVAL-HSOPAMP-N-1RZ | Evaluation Bare Board for 8 Lead SOIC w/Null or Compensation functionality on Pins 1 and or 8 | 18.25 | Y |
