8402
4ch ADC+Tacho, IEPE, Direct
Overview
The 8402 is a flexible general purpose acquisition card, with built-in signal conditioning for almost any type of transducer. It has the capability of high sample rates and synchronous parallel sampling with an additional tachometer input. It also offers a choice of AC or DC coupling to direct voltage inputs and support for IEPE† transducers, including those with TEDS. Importantly has a large number of analogue amplifier steps to maximize resolution. Additionally, the 8402 card has a dedicated tachometer channel. This card offers the flexibility of capturing data in 24-bit resolution or in 16-bit resolution. When working in the frequency domain or the order domain this card is the natural choice.
Specification
| Description | 4ch ADC + Tacho, IEPE, Direct |
| Input channels | 4 |
| Output channels | n/a |
| 16-bit sample rate * | 400k |
| 24-bit sample rate * | 100k |
| Effective bandwidth | 0.4 x sample rate |
| Anti-aliasing attenuation | > 100dB |
| AC Coupling high pass filter | 20db/dec -3dB at 0.3Hz or 1Hz |
| DC Input | Yes |
| AC Input | Yes |
| IEPE Input | Yes |
| Charge Input | No |
| Programmable excitation | No |
| 24-bit Dynamic range | 105dB at 10Ks/s |
| 24-bit Noise floor | -120dB at 10Ks/s |
| 16-bit Dynamic range | 92dB at 10Ks/s |
| 16-bit Noise floor | -110dB at 10Ks/s |
| Non-linearity | < 1 bit |
| Accuracy | ±0.1% FSD |
| DC Offset control | ±50% FS in 32768 steps |
| Tacho channels | 1 |
| Tacho input range | ±28V |
| Supports TEDS | Yes |
| Autozero | Yes |
| Input range | ±10mV to ±10V |
| Output range | n/a |
| Gain Steps | 13 |
| Input common mode range | ±10V |
| Absolute max input range | ±24V |
| Prog bridge completion | No |
| Connector | BNC |
| Power usage (worst case) | 6W |
Features
- 4 analog channels and 1 tacho input
- DC, AC and IEPE† inputs
- 400k samples/second/channel
- Tacho input sampled at up to 800k samples/second/channel
- TEDS with connection detection
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