Manufacturer: VMIC
Model Number: VMIVME4116
Part Number: VMIVME 4116
NSN: 5998-01-445-6495
Quantity: 12
Specifications Sheet
• 8 channels
• 16-bit DACs
• Fast settling: 10 μs maximum to ±0.003 percent of FSR
• Buffered voltage output (±10 V at 5 mA)
• Multiplexed programmable outputs on P2 connector for testing analog
outputs
• Double-buffered data latches
• Jumper-selectable synchronized update control
• Selectable external update control input or software-controlled strobe
provides single update strobe for all DAC outputs
• Front panel fail LED
• High reliability DIN-type output connector
• Outputs set to 0.0 V on power up
— Outputs are automatically disconnected from the field at power up
• Double Eurocard form factor
• Supports VMIC’s analog expansion and Built-in-Test bus (AMXbus™) that
interconnects the P2 connectors of various VMIC ADC and DAC boards and
expansion multiplexer boards
• Multiplexed programmable outputs for testing analog input multiplexer
boards
— Requires VMIC ADC board and AMXbus for Built-In-Test
INTRODUCTION — The VMIVME-4116
Digital-to-Analog Converter (DAC) Board performs
digital-to-analog conversion on 16-bit positive true offset
binary or two’s complement coded words, with an analog
output range of -10 to +10 V. This provides for a resolution
of 305 μV for each digital input of 1 LSB change. The
buffered output voltage settles to within 1/2 LSB in 10 μs.
The DAC offers a Digital-to-Analog Integrated Circuit
(IC) per channel. A Control and Status Register (CSR) is
loaded by the processor and this register controls the
functioning of the board. The CSR can be read by the
processor at any time. The VMIVME-4116 board
functional block diagram is shown in Figure 1. Each of the
Eight DACs are preceded by double-buffered data latches.
The data latches allow versatility in the way the DAC analog
output may be updated.
There are three methods by which new data can be
converted by a DAC. Each method is enabled/disabled by
on-board jumpers and is further controlled by a CSR that
must be loaded by the user.
FUNCTIONAL CHARACTERISTICS
Compatibility: The VMIVME-4116 Analog Output
Board is a standard, double height, printed circuit board
which is compatible with the VMEbus specification.
Board Address: The physical address for the board
is selected by 12 DIP switches. VMEbus address lines
A05 through A15 are decoded for board selection.
VMEbus Access: Address modifier bits are
jumper-selectable to support nonprivileged short I/O or
supervisory short I/O access. The board is factory
configured for supervisory short I/O access.
Data Transfer: Data can be written to one of the eight
Digital-to-Analog Converters (DACs) in bytes or words
(via data bits D00 through D15). Bipolar operation
(-10 to +10 V output) uses offset binary coding or two’s
complement binary coding.
Ordering Options
August 13, 1996 800-004116-000 E
VMIVME-4116
Description
Model Number
0 to ±10 V Outputs
8-Channel, Double-Buffered, 16-bit Analog Output
without Built-in-Test and without Output Isolation
VMIVME-4116-070
8-Channel, Double-Buffered, 16-bit Analog Output
with JFET Output Isolation Switches and
Built-in-Test Hardware
VMIVME-4116-060
8-Channel, Double-Buffered, 16-bit Analog Output
with Output Isolation Relays and Built-in-Test
Hardware
VMIVME-4116-050
8-Channel, Double-Buffered, 16-bit Analog Output
with JFET Output Isolation Switches and No
Built-in-Test Hardware
VMIVME-4116-040
8-Channel, Double-Buffered, 16-bit Analog Output
with Output Isolation Relays and No Built-in-Test
Hardware
VMIVME-4116-030
Connector Data
Compatible Cable Connector Panduit No. 120-332-435E
Strain Relief Panduit No. 100-000-042
PC Board Header Connector Panduit No. 120-332-033A
VMIVME-4116
