1145A

Agilent 1145A Two-Channel, 750-MHz, Small-Geometry Active Probe for Surface-Mount Devices Data Sheet SMD package and other support • Signal-ground pairs with 100-mil spacing • 50-mil SOIC and QUAD packages • 25-mil square pin socket on basic tip mates with most industry standard IC package adapters • 25-mil JEDEC, 0.5-mm EIAJ, 0.65-mm EIAJ packages Instrument compatibility • Powered directly by Agilent Technologies 54520A, 54522A, 54540A, and 54542A oscilloscopes • Compatible with oscilloscope’s 50 ohm BNC input. Use the Agilent 1142A external power supply with any other instrument with 50 Ω inputs. Features • 2 channels per assembly • dc to 750-MHz probe bandwidth • 1-MΩ input resistance • 1.6-pF input capacitance • 10X attenuation Surface-mount packages on PC boards have become the norm rather than the exception. In the future, nearly 100 percent of both sides of a typical PC board will use SMDs. As a result, bulky probes may become useless as package sizes get smaller and smaller. The 2-channel Agilent 1145A provides easy and reliable connection to SMDs on PC boards and backplanes, while delivering active probe performance down to the tip. Its unique design also presents a powerful combination of industry-standard compatibility and superior reliability. The probe’s basic contact is a standard 25-mil square pin socket that houses only passive circuitry. The active circuitry is contained in a plastic pod 13 inches from the tip. This design ensures a small, lightweight, and rugged tip. The electrical performance of the 1145A is unmatched by any off-the-shelf probe designed for SMD probing. The probe combines high bandwidth, high input resistance, and low input capacitance. This combination is superior to that of passive divider probes that have higher input capacitance because it provides minimal circuit loading at high and low frequencies (see the Impedance vs. Frequency graph). As signal speeds increase, passive divider probes don’t deliver the performance needed. This lower performance can result in waveshapes that do not represent the actual signal. The 1145A used with an 54542A scope, for example, introduces the equivalent of only ½ of a typical CMOS gate load (approximately 3.0 pF per gate) to a CMOS circuit. Other SMD probes used with comparable scopes can introduce 1½ or more gate loads to the circuit under test. SMT grabbers provide solid connection to leads with down to 50-mil spacings A versatile set of accessories lets you probe most any SMD package. The standard socket also makes the 1145A compatible with probing adapters from other vendors for faultfree probing of SMDs including 5-mil JEDEC, 0.5-mm EIAJ, 0.65-mm EIAJ packages. Flexible SMT leads can be soldered to any convenient signal access point 2 Specifications Bandwidth1 RiseTime 1, 2 ≥ 750 MHz ≤ 470 ps 10:1 ± 3% 1 MΩ ± 2% ± 40 V (dc + peak ac) Characteristics Input capacitance Overshoot and ringing Output voltage offset Input dynamic range Output load requirement 4 1.6 pF (typical) ± 10 % for the first 6 ns, ± 4% from 6 ns to 20 ms, ± 1.5% thereafter < ± 10 mV ± 6.0 V 50 Ω Attenuation3 Input resistance Maximum input voltage Typical input impedance vs. frequency 1M Magnitude (ohms) General characteristics Environmental conditions Temperature Operating Nonoperating Humidity Operating 0 °C to +55 °C (32 °F to +131 °F) –40 °C to +70 °C (–40 °F to +158 °F) Up to 95% relative humidity (non-condensing) at +40 °C (+104 °F) Up to 90% relative humidity at +65 °C (+149 °F) Up to 4,600 meters (15,000 ft) Up to 15,300 meters (50,000 ft) Random vibration 5 to 500 Hz, 10 minutes per axis, 0.3 grms. Random vibration 5 to 500 Hz, 10 minutes per axis, 2.41 grms. Resonant search 5 to 500 Hz swept sine, 1 octave/min. sweep rate, (0.75 g), 5 min. resonant dwell at 4 resonances per axis. ±6 V dc ± 2% (at approximately 180 mA each supply) Approximately 8 oz Approximately 1 kg (2.2 lb) Refer to the 1145A drawing 100 k 10 k 1k 100 10 k 10441A 1145A 100 k 1M 10 M 100 M 1G Frequency (Hz) Nonoperating Altitude Operating Nonoperating Vibration Typical rise time vs. input voltage 700 600 500 400 300 200 100 0 1 2 3 4 5 6 7 Rise time (ps) Power requirements Input step voltage amplitude (V) Weight Net Shipping Dimensions 39.0 in 990.6 mm 8.0 in 203.0 mm 2.25 in 57.15 mm 12 in 305 mm 3.75 in 95.25 mm 40.0 in 1016 mm 1145A dimensions 1. Above 35 °C, bandwidth and rise time degrade approximately ½%/°C . 2. Rise time figure calculated from tr = 0.35/Bandwidth. 3. When connected to an instrument input of 50 Ω, ±0.5%. 4. Oscilloscope characteristics excluded. 3 Ordering information 1145A Active probe Accessory kit that contains 4 probing pins, 5 SMT grabbers, 2 ground extenders, 2 ground leads with pin-sockets, and 2 red and 2 black solderable SMT leads. User and Service Guide, one-year warranty Available accessories 16517-8210 5090-4356 16517-82105 16517-82106 16517-82104 Kit with 4 probing pins SMT grabber kit with 20 grabbers Ground extender kit with 20 extenders Ground lead with pin-socket kit with 20 leads SMT lead kit with 4 red and 4 black leads Also available 1142A 01145-68701 Probe control and power supply module. Includes: power cord, one-year warranty Note: Offset and coupling control is not usable with 1145A Cal kit. Includes: 50 Ω feedthrough termination, SMA adapter Agilent Technologies Oscilloscopes Multiple form factors from 20 MHz to > 90 GHz | Industry leading specs | Powerful applications 4 www.agilent.com www.agilent.com/find/probes For more information on Agilent Technologies’ products, applications or services, please contact your local Agilent office. The complete list is available at: Agilent Email Updates www.agilent.com/find/emailupdates R emove a ll d oubt Our repair and calibration services will get your equipment back to you, performing like new, when promised. You will get full value out of your Agilent equipment throughout its lifetime. Your equipment will be serviced by Agilent-trained technicians using the latest factory calibration procedures, automated repair diagnostics and genuine parts. You will always have the utmost confidence in your measurements. For information regarding self maintenance of this product, please contact your Agilent office. 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Agilent Open www.agilent.com/find/open Agilent Open simplifies the process of connecting and programming test systems to help engineers design, validate and manufacture electronic products. Agilent offers open connectivity for a broad range of system-ready instruments, open industry software, PC-standard I/O and global support, which are combined to more easily integrate test system development. Europe & Middle East Austria 01 36027 71571 Belgium 32 (0) 2 404 93 40 Denmark 45 70 13 15 15 Finland 358 (0) 10 855 2100 France 0825 010 700* *0.125 €/minute www.lxistandard.org LXI is the LAN-based successor to GPIB, providing faster, more efficient connectivity. Agilent is a founding member of the LXI consortium. Product specifications and descriptions in this document subject to change without notice. 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