The ADN2892 is a high gain, limiting amplifier optimized for use in Fibre Channel and GbE optical receivers. The ADN2892 accepts input levels of up to 2.0 V p-p differential and has 3 mV p-p differential input sensitivity. The ADN2892 provides the receiver functions of quantization and loss of signal (LOS) detection.
The ADN2892 has an on-chip selectable filter to reduce the BW of the limamp to 1.5GHz in order to filter out the relaxation oscillation of legacy 1Gb/s Fiber Channel transmitters with CD lasers. The reduced BW will also allow for more optical Rx sensitivity margin at the lower data rates such as 1xFC and 1GbE in multi-rate modules.
The limiting amplifier also measures average received power based on a direct measurement of the photodiode current with better than 1 dB of accuracy over the entire input range of the receiver. This eliminates the need for external average Rx power detection circuitry in SFF-8472 compliant optical transceivers.
The ADN2892 limiting amplifier operates from a single 3.3 V supply, has low power dissipation, and is available in a spacesaving 3 x 3 mm 16-lead lead frame chip scale package (LFCSP).
Features and Benefits
| OpticalAmplifiers |
| Document | note |
| ADN2892: 3.3 V, 4.25 Gbps, Limiting Amplifier Data Sheet (Rev. B) | PDF 523 kB |
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|---|---|---|---|---|---|
| ADN2892ACPZ-500RL7 Production | 16 ld LFCSP (3x3mm, 1.50mm exposed pad) | OTH 500 | -40 to 95C | 0 | 4.1 | Y |
| ADN2892ACPZ-RL Obsolete | 16 ld LFCSP (3x3mm, 1.50mm exposed pad) | REEL 5000 | 0 | 0 | Y | |
| ADN2892ACPZ-RL7 Production | 16 ld LFCSP (3x3mm, 1.50mm exposed pad) | REEL 1500 | -40 to 95C | 0 | 4.1 | Y |
| Part Number | Description | Price | RoHS |
|---|---|---|---|
| EVAL-ADN2892EBZ | Evaluation Board | 354.2 | Y |
