Agilent E1418A
8/16-Channel D/A Converter
Data Sheet
• 1-Slot, C-size, register based
• 8/16 independent channels, flexible and configurable
• Individual isolation per channel
• 16-bit resolution D/A per channel
• Programmable selectable voltage/current modes
• Software controlled calibration
Agilent E1418 A
Description
The Agilent E1418A 8/16-Channel D/A Converter is a C–size,
1-slot, register-based VXI module. It consists of 8 or 16
fully independent, isolated or non-isolated, 16-bit D/As. Each
channel can be set to voltage or current mode with local or
remote sensing on voltage outputs. All outputs can be
updated with register-level programming to allow fast
backplane access. Each channel can be updated individually,
or by using the internal data buffer, synchronized so that all
channels change simultaneously. The channel output mode is
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set with jumpers in the terminal block for each channel or by
register programming. Each D/A converter can be calibrated
without removal through software commands and use of the
terminal block CALBUS in conjunction with a 5.5-digit
multimeter. The on/off terminal block has standard screw
terminals for field wiring.
Refer to the Agilent Technologies Website for instrument
driver availability and downloading instructions, as well as for
recent product updates, if applicable.
Agilent Technologies
Fast Updates
All outputs can be updated with register-level programming to
allow fast backplane access. Rates are limited by controller
speed and analog settling time. Each channel can be updated
individually, or by using the internal data buffer, synchronized
so that all channels change at the same time. The channel
output mode is set with jumpers in the terminal block for
each channel or by register programming.
AC Output
Sample rate: 1 kSa/s per channel
Modulation: No
Sweep: No
Amplitude accuracy (ac): not specified
Standard waveforms: No
Arbitrary waveform
function: No
In-place Calibration
Each D/A converter can be calibrated without removal
through software commands and use of the terminal block
CALBUS in conjunction with a 5.5-digit multimeter. In
addition, a built-in self-test command provides a high level of
confidence that the module is operating properly.
Choice of Connectors
The easy-to-use on/off terminal block, a feature of QUIC, has
standard screw terminals for field wiring. Optional crimp and
insert or ribbon cable connectors are available. Each channel
contains a programmable output disconnect relay to open or
close the channel.
Product Specifications
DC Voltage
Amplitude: ± 16 V max.
Resolution: 16 bits (488 µV steps) Monotonic to 2.0 mV
Amplitude accuracy (dc): ± (0.05% + 3.0 mV) (90 days)
DC Current
Range: 0 to ± 20.00 mA
Resolution: 16 bit (610 nA steps) Monotonic to 25 µA
Accuracy:
± (% value + amps)
calibration temperature and same load as at calibration)
90-day: ± (0.09% + 5.0 µA)
Output voltage:
Compliance voltage: ± 12 V
Max open circuit
voltage: <18 V
Output current:
Compliance current: >20 mA @ 0 to ± 12 V derated
Short circuit current: <40 mA
Differential ripple and
noise: <2 µA rms
(calibrated; temperature within ± 5 °C of
linearly to 5 mA @ ± 16 mV
(20 Hz - 250 kHz, into 250 Ω load)
General Characteristics
Settling time: 300 µs
Isolation: 42 Vdc/ac peak
Synchronization: Software commands, external trigger inputs,
(+ full scale to – full scale step, single
channel, to rated accuracy)
(channel-to-chassis or
channel-to-channel)
or TTL backplane trigger lines provide a choice
of synchronizing event. Each individual
channel can be updated by software
command or all channels can be updated at
the same time based upon a software or
hardware trigger.
General Specifications
VXI Characteristics
VXI device type: Register based
Data transfer bus: A16 or A24, D16
Size: C
Slots: 1
Connectors: P1/2
Shared memory: n/a
VXI busses: n/a
C-size compatibility: n/a
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