ONET2804TLP Texas instruments

ONET2804TLP

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ONET2804TLP

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Описание

The ONET2804TLP device is a high-gain, limiting transimpedance amplifier (TIA) for parallel optical interconnects with data rates up to 28 Gbps. The device is used in conjunction with a 750-µm pitch photodiode array to convert an optical signal into a differential output voltage. An internal circuit provides the photodiode reverse bias voltage and senses the average photocurrent supplied to each photodiode. The device can be used with pin control or a two-wire serial interface to allow control of the output amplitude, gain, bandwidth, and input threshold. The ONET2804TLP provides 17.5-GHz bandwidth, a gain of 7.5 kΩ, an input-referred noise of 2 µArms, and a received signal strength indicator (RSSI) for each channel. 40-dB isolation between channels results in low crosstalk penalty in the receiver. The device requires a single 2.8-V to 3.3-V supply and typically dissipates 90 mW per channel with a differential output amplitude of 300 mVPP. The device is characterized for operation from –40°C to +100°C and is available in die form with a 750-µm channel pitch.

4-Channel Multi-Rate Operation: Up to 28 Gbps
Dissipation at a 3-V Supply: 90 mW per Channel
Differential Transimpedance: 7.5 kΩ
Bandwidth: 17.5 GHz
Input-Referred Noise: 2 µA_rms
Input Overload Current: 3.2 mA_PP
Programmable Output Voltage
Adjustable Gain and Bandwidth
Received Signal Strength Indicator (RSSI) for Each Channel
Isolation Between Channels (Die Only): 40 dB
Single Supply: 2.8 V to 3.3 V
Pad Control or 2-Wire Control
On-Chip Filter Capacitors
–40°C to +100°C Operation
Die Size: 3250 µm × 1450 µm, 750-µm Channel Pitch

Type	Transimpedance and limiting amplifier
Data rate (max) (MBits)	28000
Supply current (typ) (µA)	30000
Supply current (max) (µA)	36000
Deterministic jitter (typ) (ps)	2
Operating temperature range (°C)	-40 to 100