ASA280 Analog Signature Analyser
Analog signature analyser with a built-in 80×1 switching multiplexer.
- Output voltage0.2 to 10 Vpk
- Output resistance50 Ω to 10 kΩ
- Switching matrix80 × 1
- Gate / bias±10 V adjustable
Overview
The ASA280 is the high-channel-count model in our Analog Signature Analyser line. It shares the ASA200 / ASA240 measurement engine and adds a built-in 80×1 switching multiplexer — double the ASA240's channel count — for large boards and dense production fixtures.
Where the ASA240's 40×2 matrix multiplexes both the signal and 0 V leads independently, the ASA280 routes 80 single-ended channels against a common reference. Pair it with DIP/SO adaptors or a bed-of-nails fixture and step through every test point in software. Gate/bias generator, footpedal inputs and ASA software are the same as on the ASA200 and ASA240.
High channel-count fixtured and bed-of-nails power-off PCB testing against a shared common.
Key features
- Built-in 80×1 switching matrix; 80 single-ended channels against a common reference
- Power-off V–I signature analysis through the multiplexer or the 4 mm terminals
- Output voltage 0.2 to 10 Vpk, 10 settings
- Series resistance 50 Ω to 10 kΩ, 8 settings
- Frequency 10 Hz to 1 kHz, 7 settings
- Gate/bias generator ±10 V, 100 Ω; two footpedal inputs
- External 12 V, 4 A PSU supplied; USB for data; ASA software included
Applications
High channel-count fixtures
Connect up to 80 board nodes to a bed-of-nails or adaptor. The software steps through channels against a shared common.
Large assemblies
Use the 80×1 matrix where node count exceeds the ASA240’s 40 channels and the reference can remain fixed.
Active-device signatures
The gate/bias generator biases SCRs, optocouplers, small relays and TRIACs during capture.
Golden-board comparison
Auto Test programs the multiplexer, captures each node and records a pass or fail against the stored reference.
Full specifications
One free app drives the whole range
Free for the life of the instrument — no licence, no per-seat dongle. Plot live signatures, compare a known-good board against the one under test, and export every trace.
Dimensions & weight
| Weight | 2000 g |
Scope of supply
| Item | Part no. | Qty |
|---|---|---|
| ASA280 Analog Signature Analyser | ASA280 | 1 |
| Mains PSU with UK, USA, EU and AU/NZ adapters | - | 1 |
| 1.8 m USB cable | - | 1 |
Downloads
2 downloadsASA280 Analog Signature Analyser
Supplied calibrated. ASA software, drivers and subsequent updates are included.