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ADN2871 Datasheet(PDF) 4 Page - Analog Devices |
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ADN2871 Datasheet(HTML) 4 Page - Analog Devices |
4 / 20 page ADN2871 Rev. 0 | Page 4 of 20 Parameter Min Typ Max Unit Conditions/Comments ALARM OUTPUT (FAIL)9 VOFF >1.8 V Voltage required at FAIL for IBIAS and IMOD to turn off when FAIL asserted VON <1.3 V Voltage required at FAIL for IBIAS and IMOD to stay on when FAIL asserted IBMON, IMMON DIVISION RATIO IBIAS/IBMON3 76 94 112 A/A 2 mA < IBIAS < 11 mA IBIAS/IBMON3 85 100 115 A/A 11 mA < IBIAS < 50 mA IBIAS/IBMON3 92 100 108 A/A 50 mA < IBIAS < 100 mA IBIAS/IBMON STABILITY3, 10 ±5 % 10 mA < IBIAS < 100 mA IMOD/IMMON 42 A/A IBMON Compliance Voltage 0 1.3 V SUPPLY ICC11 32 mA When IBIAS = IMOD = 0 VCC (with respect to GND)12 3.0 3.3 3.6 V 1 Temperature range: –40°C to +85°C. 2 Measured into a single-ended 15 Ω load (22 Ω resistor in parallel with digital scope 50 Ω input) using a 1111111100000000 pattern at 2.5 Gbps, shown in Figure 2. 3 Guaranteed by design and characterization. Not production tested. 4 Measured into a single-ended 15 Ω load using a K28.5 pattern at 2.5 Gbps, shown in Figure 2. 5 Measured into a differential 30 Ω (43 Ω differential resistor in parallel with a digital scope of 50 Ω input) load using a 1111111100000000 pattern at 4.25 Gbps, as shown in Figure 3. 6 Measured into a differential 30 Ω load using a K28.5 pattern at 4.25 Gbps, as shown in Figure 3. 7 Measured into a differential 30 Ω load using a K28.5 pattern at 2.7Gbps, as shown in Figure 3. 8 When the voltage on DATAP is greater than the voltage on DATAN, the modulation current flows in the IMODP pin. 9 Guaranteed by design. Not production tested. 10 IBIAS/IBMON ratio stability is defined in SFF-8472 Revision 9 over temperature and supply variation. 11 See the ICC minimum for power calculation in the Power Consumption section. 12 All VCC pins should be shorted together. ADN2871 IMODP BIAS TEE 80kHz → 27GHz VCC VCC TO HIGH SPEED DIGITAL OSCILLOSCOPE 50 Ω INPUT R 22 Ω C L Figure 2. High Speed Electrical Test Single-Ended Output Circuit ADN2871 IMODN BIAS TEE 80kHz → 27GHz VCC TO HIGH SPEED DIGITAL OSCILLOSCOPE 50 Ω DIFFERENTIAL INPUT R 43 Ω C L VCC IMODP L C BIAS TEE 80kHz → 27GHz Figure 3. High Speed Electrical Test Differential Output Circuit |
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