MAX3658 19-3015 Rev 3 2/07 622Mbps, Low-Noise, High-Gain Transimpedance Preamplifier General Description Features The MAX3658 is a transimpedance preamplifier for 45nA Noise, -33dBm Sensitivity RMS receivers operating up to 622Mbps. Low noise, high 18.3k Transimpedance Gain gain, and low power dissipation make it ideal for fiber 580MHz Bandwidth access and small form-factor transceivers. 2mA Input Overload, 1dBm Overload The MAX3658 features 45nA input-referred noise, 18k P-P transimpedance gain, 580MHz bandwidth, and 2mA P-P 66mW Power Dissipation input overload. Operating from a +3.3V supply, the 3.3V Operation MAX3658 consumes only 66mW. An integrated filter resistor provides positive bias for the photodiode. These Average Photocurrent Monitor features, combined with a small die size, allow easy assembly into a TO-46 header with a photodiode. The Ordering Information MAX3658 also includes an average photocurrent monitor. PIN- PKG The MAX3658 has typical optical sensitivity of -33dBm PART TEMP RANGE PACKAGE CODE (0.9A/W), which exceeds the class-B APON require- ments. Typical optical overload is 1dBm. The MAX3658 8 TDFN MAX3658AETA -40C to +85C T833-3 is available in die form with both output polarities (3mm x 3mm) (MAX3658A and MAX3658B). The MAX3658A is also 8 TDFN available in a 3mm x 3mm 8-pin TDFN package. MAX3658AETA+ -40C to +85C T833-3 (3mm x 3mm) Applications MAX3658AE/D Dice* Optical Receivers (Up to 622Mbps Operation) MAX3658BE/D Dice* +Denotes lead-free package. Passive Optical Networks *Dice are designed to operate over a -40C to +100C junction SFF/SFP Transceivers temperature (T ) range, but are tested and guaranteed at T = j A +25C. FTTx Transceivers Pin Configuration appears at end of data sheet. Typical Operating Circuit +3.3V C VCC1 C VCC2 5-PIN TO-46 HEADER R FILT FILT 0.1F 25* OUT+ C FILT 75* MAX3748 IN 100 C * OUT 0.1F 25* OUT- 75* LIMITING AMPLIFIER MAX3658 GND MON R MON *OPTIONAL COMPONENTS Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.622Mbps, Low-Noise, High-Gain Transimpedance Preamplifier ABSOLUTE MAXIMUM RATINGS Supply Voltage (V ) ............................................-0.5V to +4.2V Operating Temperature Range ...........................-40C to +85C CC Current into IN ....................................................................+5mA Operating Junction Temperature Range (die) ....-40C to +150C Voltage at OUT+, OUT-...................(V - 1.2V) to (V + 0.5V) Storage Temperature Range .............................-55C to +150C CC CC Voltage FILT, MON.....................................-0.5V to (V + 0.5V) Die Attach Temperature...................................................+400C CC Continuous Power Dissipation (T = +85C) Lead Temperature (soldering, 10s) .................................+300C A 8-Lead TDFN (derate 24.4mW/C above +85C)......1951.2mW Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. DC ELECTRICAL CHARACTERISTICS (V = +2.97V to +3.63V, 150 load between OUT+ and OUT-, T = -40C to +100C. Typical values are at V = +3.3V and T = CC j CC A +25C, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Current I 20 26 mA CC Input Bias Voltage V I = 1A 0.83 1.0 V IN IN Transimpedance Linear Range 0.95 < linearity < 1.05 4 A P-P Small-Signal Transimpedance Z I < 2A 15.7 18.3 20.9 k 21 IN P-P V - CC Output Common-Mode Voltage AC-coupled output V 0.125 Differential Output Offset V I = 1.3mA 2mV OUT IN Output Impedance Z Single ended 60 75 90 OUT Maximum Output Voltage V I = 2mA 150 240 400 mV OUT(MAX) IN P-P P-P I = 4A 15 20 25 k IN Filter Resistor R FILT I = 1.3mA 300 500 700 IN Offset-Correction Disable Voltage applied at FILT 0.4 V Threshold Input Resistance FILT = 0V 400 Nominal MON Current Gain G I / I (I = 1mA, 3.3V, +25C) 0.8 1 1.2 A/A MON MON IN IN MON Output Voltage Range V 0 2.2 V MON 1A I < 2A -2.5 +2.5 IN MON Accuracy (Note 1) 2A I < 5A -2 +2 dB IN 5A I < 1mA -1.5 +1.5 IN Note 1: Accuracy is defined as 10 (I / I ). log MON IN 2 MAX3658