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HP E1429A VXI 20 MSa/s Digitizer![]()
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Ideally suited for transient signals, the HP E1429A’s arm/trigger circuits can be programmed to wait for the transient to occur. Up to 128 pre- and post-arm data sets can be stored in its segmentable memory. If power is lost, the HP E1429A keeps the data intact in its non-volatile memory. Both message- and some register-based programming is supported by the HP E1429A.
SCPI commands are used to program at a high level. Register-based reads and writes are supported for high-speed data-only access. An on-board voltage reference is used to verify that the HP E1429A is operational. Attenuators, amplifiers, A/Ds, memory, timebase, and digital circuits are tested upon power-up and upon receipt of the *TST command. The normal path for retreiving data is the VXI data transfer bus.
Note: Configuration software that allows you to easily select compatible interfaces, controller platforms, and VXI test system components is available on CD ROM. Order the "Test System and VXI Products Catalog and CD ROM" from the Test & Measurement Catalogs available on this web site.
General
Number of channels: 2 Built-in DSP: No Alias protection: Oversample Basic accuracy: 0.5% Low-Frequency CMRR: 68 dB Variable bandwidth: External Filters 2 dB Input Range headroom: No Dual-Ported memory: No Dual-Rate sampling: Yes
Sampling
Number of digitized bits: 12, including sign Effective bits: 10 bits at 100 kHz; 9.5 bits at 10 MHz (typical on 1 V range, 50 ohm input, full scale input) Sample rates: 0.05 to 20 MSa/s in 1-2-5 sequence Dual sample rate: switches between programmed rates upon receipt of arm
Memory
Memory length: 512 k readings per channel, battery-backed Segmented memory: yes
Input
Input impedance: 50 or 75 ohm single-ended and 1 Mohm||20 pF differential (both inputs on each channel, DC coupled, nominal) Signal ranges: 50/75 ohm is 0.1 V to 1 V; 1 M ohm is 0.1 V to 100 V in 1-2-5 steps Analog bandwidth: 50 MHz @ 1 V single-ended, 5 MHz @ 10 V differential, typical Filtering: 10 MHz nominal, 2-pole Bessel, switchable Signal to noise ratio: -62 dB typical
Timebase
Internal reference: 20 MHz, þ50 ppm, <25 ps rms jitter typical Reference sources: internal crystal, faceplate BNC, CLK 10, and ECLTRG Timebase resolution: 50 ns
Arm and Trigger
(Each trigger event causes one A/D conversion in both channels; each Arm event allows acquisition of a burst of one or more dual-channel A/D conversions) Programmable arm delay: 50 ns to 32 ms using internal 20 MHz reference (derived from reference) Readings per arm: 1, 7 to 16,777,215, or continuous post-arm; 0 or 3 to 65,535 pre-arm Re-arm rate: up to 2 MHz (non-segmented memory) Arm sources: internal, faceplate BNC, input voltage level, TTLTRG, ECLTRG, and logical OR of any two signals Trigger (sample clock) sources: internal, VME read, faceplate BNC, TTLTRG, and ECLTRG ECLTRG functions: arm, trigger, and reference (input and output) TTLTRG functions: trigger and arm (input) arm and ready for trigger (output)
Connectors
EXT1 faceplate BNC: arm and trigger (input) arm, trigger and reference (output) EXT2 faceplate BNC: trigger and reference (input)
VXIbus Compliance
Data paths: VXI word serial protocol on VXI data transfer bus or VME register access (16- or 32-bit; up to 4 or 8 MB/s) Device type: message-based servant and register-based (A24) slave; A16/A24, D8/D16, D32 (data read only)VXI Characteristics
VXI device type:Message-based Datatransfer bus: A24 slave; A16/A24, D8/D16, D32 data read only Size: C Slots: 1 Connectors: P1/P2 Shared memory: n/a VXI busses: TTL Trigger Bus, ECL Trigger Bus C-size compatibility: YesInstrument Drivers
Click here for driver availability and downloading.Command module firmware: n/a Command module firmware rev: n/a I-SCPI Win 3.1: n/a I-SCPI Series 700: n/a C-SCPI LynxOS: n/a C-SCPI Series 700: n/a HP VEE Drivers: Yes VXIplug&play Win Framework: Yes VXIplug&play Win95/NT Framework: Yes VXIplug&play HP-UX Framework: No (not available attimeofpublication)
Module Current
IPM IDM +5 V: 2.9 0.5 +12 V: 0.2 0.04 -12 V: 0.2 0.04 +24 V: 0.1 0.05 -24 V: 0.1 0.05 -5.2 V: 3.6 0.05 -2 V: 1.2 0.12
Cooling/Slot
Watt/slot: 41.50 deltaP mm H2O: 0.80 Air flow liter/s: 3.80
Backplane Connector Shielding
To ensure compliance with RFI levels specified in standards EN55001 and CISPR11, this product requires the Backplane Connector Shields installed in an HP VXI C-size mainframe. Option 918 is available with the purchase of a new HP mainframe; accessories, HP P/Ns E1400-80920 and E1421-80920, are available for retrofitting existing HP mainframes HP E1401A/B and HP E1421B, respectively (one accessory per mainframe required).
HP E1429A VXI 20 MSa/s Digitizer Opt 0B3 Service manual Opt W01 3-yr. return to HP to 1-yr. on-site warranty HP E1400-80920 Shield, backplane connector HP E1421-80920 VXI backplane connector shield kit
HP E1429A Technical Specifications Datasheet
( PDF)
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Page Updated: Thursday February 18 05:18:57 UTC 1999