U1084A Datasheet, PDF (6/20 Pages) Keysight Technologies – Acqiris High-Speed PCIe Digitizers with On-Board Signal Processing

Acqiris High-Speed PCIe Digitizers
U1084A-001, dual channel, 8-bit, 1.5 GHz, 2 to 4 GS/s
U1084A-002, dual channel, 8-bit, 1.5 GHz, 1 to 2 GS/s
U1084A-003, dual channel, 8-bit, 500 MHz, 0.5 to 1 GS/s
Signal input
Channels
-001: Dual at up to 2 GS/s
Single at up to 4 GS/s
-002: Dual at up to 1 GS/s
Single at up to 2 GS/s
-003: Dual at up to 500 MS/s
Single at up to 1 GS/s
Bandwidth (-3 dB)
-001: DC to 1.5 GHz (1.8 GHz typ.)
-002: DC to 1.5 GHz (1.8 GHz typ.)
-003: DC to 500 MHz (typ.)
Bandwidth limit filter
700 MHz (-001 and -002 only), 200
MHz, and 20 MHz (typ)
Full scale (FS)
50 mV¹, 100 mV, 200 mV, 500 mV,
1 V, 2 V, and 5 V
Offset range
±2 V for 50 mV to 500 mV FS
±5 V for 1 V to 5 V FS
Maximum input voltage
±5 V DC
Coupling
AC, DC
Impedance
50 Ω ± 1%
Connectors
-BNC: two, gold plated
-SMA: two, gold plated
Digital conversion
Sample rate
488.28 kS/s to maximum sample rate,
using binary sparsing method
Resolution
8 bits
DNL
± 0.9 LSB
Time base
Clock accuracy
Better than ± 2 ppm
Sampling jitter
< 1 ps rms for 10 μs record length
with internal clock and reference
(measured)
Trigger (channel and external)
Channel trigger input
Threshold adjust range: FS of channel
Sensitivity, DC to 1.5 GHz: > 15% FS
(measured)
Pretrigger
Adjustable to 100% of horizontal
full scale
External trigger input (TR IN)
MCX, gold-plated
Impedance: 50 Ω and 1 MΩ ± 2%
Sensitivity (measured):
50 Ω, DC to 1 GHz: > 0.5 V
1 MΩ, DC to 250 MHz: > 0.5 V
Maximum input voltage: ± 5 V DC
Coupling
DC, AC², HF reject² (50 kHz cutoff)
(measured)
Modes
Edge (positive and negative)
Window², HF divide by 4², spike
stretcher², dual-source pattern³
(OR, AND, NOR, NAND)
Trigger output (TR OUT)
MCX, gold-plated
Offset: ± 2.5 V (no load) (typ)
Amplitude: ± 0.8 V (no load),
± 15 mA max (measured)
Rise/fall time: 2.5 ns into 50 Ω (mea-
sured)
Coupling: DC
Output impedance: 50 Ω
1) Bandwidth limited to 500 MHz (typ)
2) Channel trigger only.
3) Between either one of the input channels and the external
trigger.
6
Control I/O
Connectors
MCX, gold-plated
Control signals (I/O A, B, and C)
TTL & CMOS compatible (3.3 V)
Control output (I/O A, B, and C)
10 MHz reference clock out with
50 Ω output impedance
Acquisition active
Trigger ready
Control input (I/O A and B)
Trigger enable
External clock (CLK IN)
Connector
MCX, gold-plated
Clock reference
Amplitude: > 1 V pk-pk into 50 Ω
(measured)
Threshold: variable between
- 2 V and + 2 V (typ)
Maximum input voltage: ± 5 V DC
Clock input
1 GHz or 2 GHz
Reference frequency
10 MHz ± 0.3% (measured)