The 685-02 ComboPak offers excellent laser performance for pump lasers, higher power LEDs, and other devices requiring up to 2A of drive current. With 100uA set point resolution and less than 40uA of noise, the 685-02 provides a transparent driver that won’t interfere with the performance of your laser or LED devices. Couple that with a high-performance TEC controller that supports excellent long-term stability and high resolution.
Develop with a ComboSource, Deploy with a ComboPak
The ComboPak is command-set compatible with the ComboSource and also features the same laser and TEC interfaces. This means you can start your development with the ComboSource, a robust benchtop instrument with a full user interface and display, then move to the lower cost ComboPak as you roll out the application to production or your end-users.
Analog or Computer — Your Choice
The 685 Series ComboPaks provide both a robust analog interface as well as USB computer control for precise remote operation (you can even use both interfaces simultaneously). The analog interface provides on/off control and status, while the computer interface provides complete control over all operating parameters.
Analog Modulation
The 685-02’s analog interface supports modulation rates up to 100kHz.
Simple Multi-Channel System
Using the 1402C-RM Rack Mount Tray, you can quickly rack groups of 3 or 5 Paks into a rack for a quick multi-channel system.
Universal AC Input
The ComboPak features a universal AC input, eliminating the need to reconfigure the instrument when moving your application internationally.
Summary
| Laser Driver | 2 Amp, 3.5 Volt |
| Temperature Controller | 3 Amp, 3.5 Volt, 10.5 Watt |
Laser Driver
LASER CURRENT
| Range (mA) | 0 – 2000 |
| Resolution (mA) | 0.04 |
| Accuracy (±[% set + mA]) | 0.025% + 0.5 |
| Stability (ppm, time) | < 10, 1 hour |
| Temperature Coeff (ppm/°C) | 50 |
| Noise/Ripple (μA rms, low BW) | < 40 |
| Transients (μA) | < 200 |
| Compliance Voltage (V) | 3.5 |
| Modulation Bandwidth (kHz) | 100 |
| Modulation Input Range | 0 – 10V, 10kΩ |
PHOTODIODE CURRENT
| Range (μA) | 5 – 5,000 |
| Resolution (μA) | 0.1 |
| Accuracy (±[% set+μA]) | 0.05% + 1 |
| Stability (ppm, time) | < 200, 24 hours |
| Temperature Coeff (ppm/°C) | < 200 |
| PD Bias (V) | -2.5V, fixed |
LASER VOLTAGE
| Range (V) | 0 – 3.5 |
| Resolution (V) | 0.001 |
| Accuracy (±[% set+V]) | 0.05% + 0.005 |
| Stability (ppm, time) | < 50, 1 hour |
| Temperature Coeff (ppm/°C) | < 100 |
| Four-wire Measurement | Yes |
LIMITS
| Current Limit Accuracy (mA) | 20 |
| Voltage Limit Accuracy (±% FS) | 2.5% |
Temperature Controller
| Power (A, V, W) | ±3A, ±3.5V, 10.5W |
TEMPERATURE
| Stability (1 hour, °C) | 0.002 |
| Stability (24 hours, °C) | 0.005 |
| Range (°C) | -99 to 250 |
| Resolution (°C) | 0.01 |
| Temperature Accuracy at 25°C (°C) | 0.03 |
Sensor
| Type | Thermistor |
| Accuracy (±[% reading + kΩ]) | 0.05 + 0.005 |
| Range (kΩ) | 0.02 – 45 |
| Resolution (kΩ) | 0.001 |
| Bias (µA) | 100 |
CURRENT
| Range (A) | ±3 |
| Compliance Voltage (V) | > ±3.5 |
| Max Power (W) | 10.5 |
| Resolution (A) | 0.01 |
| Accuracy (±[% value + A]) | 0 + 0.03 |
| Noise/Ripple (A, rms) | < 0.005 |
| Current Limit Accuracy (A) | 0.05 |
VOLTAGE (measurement only)
| Accuracy (±[% reading + V]) | 0 + 0.05 |
| Range (V) | > ±3.5 |
| Resolution (V) | 0.01 |
General
| Laser Connector | DB-9, female |
| TEC Connector | DB-15, female |
| Computer Interface | USB 2.0 Full Speed (USB Type B) |
| Power | Universal 90 – 250 VAC 50/60 Hz |
| Size (H x W x D) [inches (mm)] | 2.6 (66) x 4.5 (114.3) x 8.5 (215) |
| Operating Temperature | +10°C to +40°C |
| Storage Temperature | -20°C to +60°C |
| Datasheet | 685 Series ComboPak Datasheet |
| Manuals | 685 Series ComboPak User’s Manual |
| Manuals | Computer Interfacing Manual |
| Software | Arroyo Control |
| Software | USB Drivers |
| Software | LabVIEW Drivers |
| Model | 685 Series ComboPak CAD Model |
