Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Channels / Resolution | 16 channels, 16-bit |
| Output Ranges | ±2.5 V, ±5 V, ±10 V, ±20 V, 0–5 V, 0–10 V, 0–20 V or 0–40 V |
| Drive | ±25 mA stated with 1.5 V supply-rail headroom |
| Reference | Integrated 2.5 V precision reference, 5 ppm/°C typical drift |
| Linearity | ±1 LSB maximum INL stated at 16-bit resolution |
| Interface | 50-MHz SPI, daisy chain and CRC error check |
| Extra Functions | A/B toggle inputs and analog temperature output |
| Exact Package / Packing | VQFN (RHA), 40 pins; 2500-piece large reel; marking DAC81416 |
Product Overview
DAC81416RHAR is a dense industrial/lab analog-output solution: sixteen 16-bit channels can generate bipolar or unipolar voltages as high as ±20 V or 0–40 V. This eliminates the external high-voltage output amplifiers required by ordinary 5 V DACs in many test and control systems.
The ±25 mA drive capability makes each channel more robust for cable, bias and instrumentation loads, but total package power can become large when many channels drive high voltage/current simultaneously. Thermal design is therefore a system constraint, not a secondary detail.
SPI daisy chaining, CRC checking and hardware A/B toggle inputs support high-channel-count test and waveform/bias systems where deterministic updates and communication integrity matter.
For related devices, see HKEQGOO’s DACs category.
Technical Specifications
| Parameter | Verified Information |
|---|---|
| Manufacturer | Texas Instruments |
| Exact MPN | DAC81416RHAR |
| Channels / Resolution | 16 channels, 16-bit |
| Output Ranges | ±2.5 V, ±5 V, ±10 V, ±20 V, 0–5 V, 0–10 V, 0–20 V or 0–40 V |
| Drive | ±25 mA stated with 1.5 V supply-rail headroom |
| Reference | Integrated 2.5 V precision reference, 5 ppm/°C typical drift |
| Linearity | ±1 LSB maximum INL stated at 16-bit resolution |
| Interface | 50-MHz SPI, daisy chain and CRC error check |
| Extra Functions | A/B toggle inputs and analog temperature output |
| Exact Package / Packing | VQFN (RHA), 40 pins; 2500-piece large reel; marking DAC81416 |
| Manufacturer Status | Active / Production |
| Part Marking | DAC81416 |
Functional Highlights
Integrated high-voltage buffers collapse a large external analog-output BOM
Sixteen channels can directly cover industrial bipolar/unipolar spans without one op-amp stage per DAC output.
CRC and A/B toggle features target deterministic test/control systems
Digital error checking improves link robustness, while hardware toggling can switch stored output states without streaming every code again.
Design Considerations
- Calculate worst-case package dissipation across all simultaneously loaded high-voltage outputs.
- Provide the required high-voltage supply rails with margin for selected output range and current.
- Use CRC and fault/status handling if output correctness is safety- or test-critical.
Product Status and Exact Order Code
Manufacturer status: Active / Production
Texas Instruments lists DAC81416RHAR as Active / Production; VQFN (RHA), 40 pins; 2500-piece large tape and reel; −40°C to +125°C; marking DAC81416.
Related Engineering Resources
Quality & Verification Support
Third-party inspection or testing can be arranged according to customer requirements. Testing fees are borne by the buyer. Additional verification requirements can be discussed before shipment. After an order is placed, physical product, label, packaging, and Date Code photos may be provided where appropriate.
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