Measurement Computing DaqBook 2000 Series - Manual (Page 83)

Specifications are subject to change without notice.
DaqBook/2000 and DaqOEM/2000 Series 898695 Specifications 11-5
5. Counter/Totalizer Triggering: Counter/totalizer inputs can trigger an acquisition. User can select to trigger
on a frequency or on total counts that are equal, above, below, or within/outside of a window.
Latency: One scan period maximum.
6. Software Triggering: Trigger can be initiated under program control.
Analog Outputs
Applies to DaqBook/2020, DaqBook/2001, and DaqOEM/2001
Does not apply to DaqBook/2005 or to DaqOEM/2005
Four analog output channels are updated synchronously relative to scanned inputs, and clocked from either an
internal onboard clock, or an external clock source. Analog outputs can also be updated asynchronously,
independent of any other scanning in the system.
Channels: 4 DAC channels (DAC0, DAC1, DAC2, and DAC3)
Resolution: 16 bits
Data Buffer: 256Ksample
Output voltage range:
±10 V
Output current:
±10 mA
Offset error:
±0.0045 V maximum
Digital Feedthru: 50 mV when updated
Gain error:
±0.01%
Update rate: 100 kHz maximum, 1.5 Hz minimum (no minimum with external clock)
Settling Time: 10
µs maximum to 1 LSB for full-scale step
Clock Sources: 4 programmable
1. Onboard D/A clock, independent of scanning input clock
2. Onboard scanning input clock
3. External D/A input clock, independent of external scanning input clock
4. External scanning input clock
Digital I/O
Channels:
DaqBook/2001, /2005: 40 built-in, expandable to 272 with external DBK options
DaqOEM/2001, /2005: 40 built-in, expandable to 272 with external DBK options
DaqBook/2020: 24 built-in, expandable to 256 with external DBK options
Input Scanning Modes: 2 programmable
1. Asynchronous, under program control at any time relative to input scanning
2. Synchronous with input scanning
Ports:
DaqBook/2001, /2005: 3 x 8-bit (82C55 emulation), and 1 x 16-bit, Programmable as input or output.
DaqOEM/2001, /2005: 3 x 8-bit (82C55 emulation), and 1 x 16-bit. Programmable as input or output.
DaqBook/2020: 3 x 8-bit (82C55 emulation). Each port is programmable as input or output.
Input Characteristics: 100
Ω series, 20 pF to common
Input protection:
±8 kV ESD clamp diodes parallel
I/O levels: TTL
Sampling Rate: 200 kHz max
Update Rate: Asynchronous under program control
Output Characteristics: Output 12 mA per pin, 200 mA total continuous (per bank of 24 outputs)