Overview

Key Specifications

Analog Output – Voltage (16 channels)

• Resolution: 16‑bit (±1 LSB INL/DNL)

• Range: ±10.1 V DC

• Output impedance: ≤ 0.1 Ω

• Current drive: ± 10 mA max

• Accuracy: ± 1 mV max

• Noise: 100 µV rms (DC–1 MHz)

Analog Output – Current (16 channels, 6704 only)

• Resolution: 16‑bit

• Range: 0.1–20.2 mA (sourcing)

• Output impedance: ≥ 1 GΩ

• Compliance: 0–10 V

• Accuracy: ± 2 µA max

• Noise: 1 µA rms (DC–1 MHz)

Digital I/O

• 8 lines, 5 V TTL/CMOS compatibleNI

• Input: 0.8 V (low) / 2.0 V (high)

• Output: 0.45 V (low, 16 mA) / 2.4 V (high, 16 mA)

Timing & General

• Update: Software‑timed (static)

• Max update latency: ≈1.8 ms (all 36 channels scanned @ 50 µs/channel)

• Warm‑up: 15 min (rated accuracy)

• Operating temp: 0 °C to +55 °C

• Bus: PCI / PXI (3U, single slot)NI

• Driver: NI‑DAQ (legacy)

Main Features

• 32 analog channels (16V + 16I) + 8 DIO in one slot

• Independent range/configuration per channelNI

• Short‑circuit protection on all outputs

• User‑defined power‑on state (safe initialization)

• High stability for DC calibration, sensor excitation, biasing

Applications

• Precision DC voltage/current sourcing & calibration

• Semiconductor device biasing & characterization (slow parametric)

• Sensor excitation, reference setting, and trim adjustment

• Laboratory/industrial slow process control & setpoint control

Part Numbers

• PCI‑6704: 777306‑01

• PXI‑6704: 777796‑01NI

Replacement Notes

• Static, software‑timed; not for high‑speed waveforms.

• Recommended replacements: PXIe‑6738 / 6739 (high‑speed analog output) or PXI‑4130/4132 (precision SMU).