Datasheet HMC980 (Analog Devices) - 10
| Manufacturer | Analog Devices |
| Description | Active Bias Controller High Current |
| Pages / Page | 22 / 10 — HMC980. Active BiAs controller. High current. Pad Descriptions |
| File Format / Size | PDF / 1.2 Mb |
| Document Language | English |
HMC980. Active BiAs controller. High current. Pad Descriptions
Model Line for this Datasheet
Text Version of Document
HMC980
v00.0312
Active BiAs controller High current Pad Descriptions
(Continued) pad number Function Description interface schematic ip h s - C r a high precision resistor (e.g. 0.5%, ±25 ppm tCr) to iset pad is recommended for good bias accuracy. the 15 alMh value of the resistor sets the threshold. if alarm feature is not used alMh can be shorted to iset. lle o r t n o s C a high precision resistor (e.g. 0.5%, ±25 ppm tCr) between alMl and iset is recommended for good bias ia 16 iset accuracy. the total external resistance from iset pad to B GnD should always be equal to 5 k Ω. a high precision resistor (e.g. 0.5%, ±25 ppm tCr) to GnD is recommended for good bias accuracy. the 17 alMl value of the resistor sets the threshold value for under current alarm. if alarm feature is not used alMl can be shorted to iset. Drain current adjustment pad. to adjust the bias current of the external amplifier connect a resistor (rsense) 18 isense from isense pad to GnD according to eqn(2) on page 13-15. a high precision resistor (e.g. 0.5%, ±25 ppm tCr) is recommended for good bias accuracy. For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
8
Application Support: Phone: 978-250-3343 or apps@hittite.com Document Outline Typical Applications Features Functional Diagram General Description Electrical Specifications Typical Performance Characteristics Bias Current Accuracy[1] Bias Current Accuracy[2] Power Up Waveform Shutdown Waveform Enable Waveform Disable Waveform Load Regulation @ VDD=5V, VDIG=3.3V, SW0=GND, SW1=GND Load Regulation @ VDD=5V, VDIG=3.3V, SW0=3.3V, SW1=GND Load Regulation @ VDD=16.5V, VDIG=5.0V, SW0=GND, SW1=VDIG Load Regulation @ VDD=16.5V, VDIG=5.0V, SW0=VDIG, SW1=VDIG VNEG Load Regulation @ VDD=5V VNEG Load Regulation @ VDD=16.5V VNEG Load Transient VDD=5V VNEG Load Transient VDD=16.5V VGATE Load Regulation @ VDD=12V [1] VG2 Load Regulation @ VDD=12V [2] VNEG Line Regulation vs. Supply Voltage Absolute Maximum Ratings Outline Drawing Pad Descriptions Application Notes Detailed Description Digital Power Supply (VDIG) Supply and Drain Voltage (VDD and VDRAIN) Table 1. REcommended Current Range Configuration Negative Voltage Generator (VNEGOUT) Enable/Disable (EN) Active Bias Control Loop VG2 Voltage Adjustment Self Protection Feature VNEG Fault Detection Feature Daisy-Chain Operation Operation Modes Table 2 - The List of Bias Settings for Various Hittite Amplifiers Table 3 - List of Bias Settings for Various Hittite Amplifiers
v00.0312
Active BiAs controller High current Pad Descriptions
(Continued) pad number Function Description interface schematic ip h s - C r a high precision resistor (e.g. 0.5%, ±25 ppm tCr) to iset pad is recommended for good bias accuracy. the 15 alMh value of the resistor sets the threshold. if alarm feature is not used alMh can be shorted to iset. lle o r t n o s C a high precision resistor (e.g. 0.5%, ±25 ppm tCr) between alMl and iset is recommended for good bias ia 16 iset accuracy. the total external resistance from iset pad to B GnD should always be equal to 5 k Ω. a high precision resistor (e.g. 0.5%, ±25 ppm tCr) to GnD is recommended for good bias accuracy. the 17 alMl value of the resistor sets the threshold value for under current alarm. if alarm feature is not used alMl can be shorted to iset. Drain current adjustment pad. to adjust the bias current of the external amplifier connect a resistor (rsense) 18 isense from isense pad to GnD according to eqn(2) on page 13-15. a high precision resistor (e.g. 0.5%, ±25 ppm tCr) is recommended for good bias accuracy. For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
8
Application Support: Phone: 978-250-3343 or apps@hittite.com Document Outline Typical Applications Features Functional Diagram General Description Electrical Specifications Typical Performance Characteristics Bias Current Accuracy[1] Bias Current Accuracy[2] Power Up Waveform Shutdown Waveform Enable Waveform Disable Waveform Load Regulation @ VDD=5V, VDIG=3.3V, SW0=GND, SW1=GND Load Regulation @ VDD=5V, VDIG=3.3V, SW0=3.3V, SW1=GND Load Regulation @ VDD=16.5V, VDIG=5.0V, SW0=GND, SW1=VDIG Load Regulation @ VDD=16.5V, VDIG=5.0V, SW0=VDIG, SW1=VDIG VNEG Load Regulation @ VDD=5V VNEG Load Regulation @ VDD=16.5V VNEG Load Transient VDD=5V VNEG Load Transient VDD=16.5V VGATE Load Regulation @ VDD=12V [1] VG2 Load Regulation @ VDD=12V [2] VNEG Line Regulation vs. Supply Voltage Absolute Maximum Ratings Outline Drawing Pad Descriptions Application Notes Detailed Description Digital Power Supply (VDIG) Supply and Drain Voltage (VDD and VDRAIN) Table 1. REcommended Current Range Configuration Negative Voltage Generator (VNEGOUT) Enable/Disable (EN) Active Bias Control Loop VG2 Voltage Adjustment Self Protection Feature VNEG Fault Detection Feature Daisy-Chain Operation Operation Modes Table 2 - The List of Bias Settings for Various Hittite Amplifiers Table 3 - List of Bias Settings for Various Hittite Amplifiers
