The NI-9215 is a four-channel differential voltage input module with a ±10 V input range, 16-bit resolution and simultaneous sampling up to 100 kS/s per channel.
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Key product information and technical features.
The NI-9215 provides voltage acquisition in NI CompactDAQ and CompactRIO systems. Independent track-and-hold circuitry lets all four channels sample simultaneously, rather than scanning inputs sequentially.
NI offers screw-terminal, spring-terminal and BNC versions. Connector-specific wiring and isolation limits differ, so the physical variant must be identified before applying those specifications to this catalog item.
Verified product specifications.
| Differential analog input channels | 4 channels |
|---|---|
| Nominal analog input range | -10 to +10 V |
| Maximum sample rate per channel | 100 kS/s/ch |
| ADC resolution | 16 bits |
| Simultaneous sampling | Yes |
| Channel-to-channel isolation | None |
| Operating temperature | -40 to +70 °C |
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C Series differential voltage input module
779011-01: screw terminal; 783739-01: spring terminal; 779138-01: BNC. These are model-family references, not confirmed identifiers for this item.
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Product-specific answers based on available technical information.
Yes. Each channel has independent track-and-hold circuitry, supporting simultaneous sampling at up to 100 kS/s per channel.
No. The nominal measurement range is ±10 V. Screw- and spring-terminal versions have 250 Vrms continuous channel-to-earth isolation, while the BNC version has 60 VDC. There is no channel-to-channel isolation.
The record is inconsistent: its description says screw terminal, but its tag lists 783739-01, which NI identifies as spring terminal. Confirm the physical connector and module label before selecting wiring accessories.