Features
4 or 8 independent 16-bit D/A converters per instrument

Ideal for simulating thermocouples and other sensor outputs

±20 V, ±10 V, ±1 V ±0.1 V output ranges

400 kSa/s arbitrary waveform generation with internal programmable clock

Extensive triggering capability

Synchronize level changes with input measurements to facilitate test sequencing
EX1200-3604,-3608 Datasheet
EX1200-3604 : 4 channel DAC/400 kHz AWG
EX1200-3608 : 8 channel DAC/400 kHz AWG
Overview
The EX1200-3608 and EX1200-3604 provide eight or four independent channels of a digital to analog converter (DAC) with 16 bits of resolution. Each channel consists of 12-bit and 16-bit independent DACs combined with an output Alifier. The two DACs allow these modules to achieve fine resolution at very low output range settings. Along with static output operation, the DAC modules provide an arbitrary waveform generation mode (AWG) which supports sophisticated looping and branching to build complex waveforms without the system controller’s intervention. The data may be paced out of the instrument by using either a user-supplied clock or the internal programmable timer with output rates up to 400 kSa/s.

Each channel is true-differential, and has sense lines that can be used to compensate for voltage drops that occur over the length of the lead wire between the DAC output and the device under test. Channels can be connected in series to produce outputs in excess of 20 V. An external clock input is available to synchronize output level changes with external events. When used in an EX1200 series mainframe with the optional DMM, the DAC outputs can be routed to the internal analog backplane for verification prior to critical test runs to ensure the device will perform to a high degree of accuracy.

The EX1200-3608 channels are isolated in groups of two, while all four of the channels on the EX1200-3604 are individually isolated. This provides the ability to connect four channels together in series to create an output channel with an extended range to 80 V.

When using the EX1200 scanning measurement feature, the DAC levels can be programmed at the beginning of each scan step. This powerful feature provides the basis for test sequencing completely independent of the host controller, where analog outputs are synchronized with measurement inputs.



Specifications
EX1200-3608 - 8 channel DAC/400 kHz AWG
EX1200-3604 - 4 channel DAC/400 kHz AWG
Output Ranges (Voltage) ± 0.1 V, ± 1 V, ± 10 V, ± 20 V
Output Range (Current) ± 20 mA
Output Current (Voltage Mode) ±50 mA per channel into short circuit
Resolution 16 bits, 16 bits monotonic
Isolation 100 V
Slew Rate 20 V/μs (50 mA load)
Settling Time 10 μs to 0.1 % of specified value
DCV Accuracy (0.01% of Setting + 0.0076% of Range + 0.1 mV)
Update Rate Programmable, maximum 400 kSa/s
Trigger Sources Front panel input, LXISync
Memory 1 MSample
Remote Sense Lines Per Channel
AWG Memory 484 kwords divided by the number of active channels. 996 kword optional.
AWG Data Traces 1 to 4096 unique patterns
AWG Segments 1 to 4096
AWG Loop Count 1 to 1048575 or continuous
AWG Advance Synchronous waits for the end of Modes the current pattern to advance to the next.
Asynchronous advances immediately to the next pattern upon being triggered.
AWG Advance Conditions Automatic or triggered
AWG Marker Function Marks the first data in a pattern when enabled. Polarity is software programmable.
AWG Marker Output Front panel TTL compatible output.
User Connector 44p HD DSub

Ordering Information
EX1200-3608 8 channel DAC/AWG 400 kSa/s
EX1200-3604 4 channel DAC/AWG 400 kSa/s
27-0390-044 44p HD DSub mating connector, backshell and pins, crimp style
70-0363-502 44p HD DSub mating connector and backshell, with 3ft unterminated 22 AWG wire
70-0297-001 Crimp tooling, includes handle and positioner, 22 AWG