A1216E
ISA Bus Analog and Digital I/O Card
Features
- Eight differential or 16 single-ended input channels, switch selectable
- Twelve-bit resolution
- 100,000 samples per second
- On-board pacer clock and three 16-bit counter/timers
- Two independent, 12-bit D/A converters
- D/A converter outputs disabled at power-on
- Eight digital I/O lines (4 in, 4 out) accessible at primary I/O connector
- Twenty-four digital I/O lines on an auxiliary connector, configured in two 8-bit ports and two 4-bit ports
- Designed, made, supported, and manufactured in the USA
The Al216E is a 3/4-1ength,
multifunction, high-speed analog/digital I/O card for use in ISA-bus Computers
and compatibles. With this card installed, the computer can be used as a
precision data acquisition and control system or a signal analysis instrument.
All connections are made through standard 37-pin D type connectors at the rear
of the computer. An additional 24 lines of digital I/O are accessible through a
40-pin IDC type auxiliary connector that mounts on an adjacent mounting
bracket.
ANALOG INPUTS
The card accepts up to eight
differential or sixteen single-ended analog inputs. The channel input
configuration is switch selectable on the card, providing a choice between
sixteen single-ended channels or eight differential channels. Analog inputs may
be configured in unipolar (0 - 10V) or bipolar ( ±5V and ±10V) modes
through the use of jumpers on the card. These inputs are amplified by a
low-bias-current, fast-settling, monolithic instrumentation amplifier with high
common-mode rejection. The amplifier provides programmable gains of 1, 10, 100,
and 1000 and settles to 0.01% in 2 µSec.
The A1216E card uses a 12-bit successive approximation analog-to-digital converter (A/D) with a sample and hold amplifier input. Under ideal conditions, the A/D can sustain a rate of 100,000 conversions per second. A/D conversions may be initiated in one of three ways:
- by software command,
- by on-board programmable timer, or
- by direct external trigger.
Data may be transferred to the computer by interrupt or program control. Interrupt levels 2-7 as well as 10, 11, 12, 14, and 15 are available by jumper selection.
INPUT SYSTEM EXPANSION
The card can be used with up
to sixteen AIM-16P analog input multiplexer cards. Each AIM-16 provides
capability to connect sixteen differential inputs. Thus, when an A1216E is used
with a full complement of AIM-16's, there can be as many as 256 analog inputs.
Use of an AIM-16 with the A1216E requires a special cable adaptor.
ANALOG OUTPUTS
The A1216E card has two
12-bit digital-to-analog converters (D/A) connected to output drivers capable
of providing 5 mA current drive. Each channel provides output ranges of 10V,
5V, and 2.5V unipolar and ±l0V, ±5V, ±2.5V bipolar. The ranges
of the two D/A's are independent and are selected by means of switches on the
card. The D/A's make use of an on-board reference voltage. Analog outputs are
disabled at power-up and remain disabled until the computer writes to them.
This prevents spurious outputs from causing damage when the system is first
activated.
DIGITAL I/O
Four bits of TTL/CMOS-
compatible digital input capability are provided. Digital inputs IP0 and IP2
have dual purposes. Input IP0 may be used to provide external start pulses to
the A/D. Input IP2 may be used as a gate input to Counter/Timer 0. These inputs
can be converted to output ports for multiple AIM-16 applications as described
under Input System Expansion. When this is done, you give up capability for
external triggering of the A/D and gating Counter/Timer 0.
Four bits of digital output are available with LSTTL logic levels and 10 LSTTL load drive capability. Discrete outputs OP0 through OP3 provide multiplexer addressing capability for input expansion use, as described previously, or can be used as separate digital outputs. There are twenty-four bits of additional digital I/O available on the auxiliary connector. These bits are arranged in two 8-bit ports and two 4-bit ports. Each port may be independently programmed for input or output.
COUNTER/TIMERS
Three 16-bit Counter/Timers
are provided on the A1216E. Counter/Timer 0 is enabled by a digital input and
uses either an internal 1 .0 MHz clock or an external clock of up to 10 MHz.
This counter is not committed on the card. Its clock, enable, and output lines
are all available at the I/O connector. Counter/Timers 1 and 2 are concatenated
to form a 32-bit counter/timer for timed A/D conversions and/or external
frequency generation. This dual counter/timer is enabled by program control and
is clocked by a 1 MHz on-board crystal oscillator source. Counter/Timer 0 and
Counter/Timers 1 and 2 can be set up for event counting, frequency or period
measurements, and pulse or waveform generation.
PIN CONNECTIONS
Connections are made to the
A1216E card via a 37-pin D type connector that extends through the back of the
computer case. The only differences between the A1216E and the AD12-16/16F are
the absence of analog reference inputs and the -5V reference output since
analog output ranges are selected by on-board jumpers.
Downloads
Available Reference Manuals
- View / Download the A1216E Manual (.PDF)
- View / Download the Software Reference Manual (.PDF)
Available Software Downloads
Drivers and Downloads
Full list of available Downloads: Software Packages, Drivers, Manuals, and other documents
Custom Software
ACCES also offers Custom Software Services for our products. Our prices are unbelievably low, often as inexpensive as free! If you need something tweaked to support your needs, or an entire enterprise application developed from scratch, it is definitely worth your time to inquire with us, first.
Further information about available ACCES Software:
- Redistributing Windows Drivers
- A list of ACCES drivers and the files that compose them under different versions of Windows, so you can easily redistribute ACCES cards and drivers.
Specifications
Analog Inputs
- Channels: 16 single-ended or 8 differential, switch selectable.
- Resolution: 12 binary bits.
- Accuracy: 0.1%.
- Input Voltage Modes: ±5V, ±10V, 0-10V
- Input Amplifier Gains: 1, 10, 100, 1000 (Under software control per channel).
- Coding: True binary for unipolar inputs and offset binary for bipolar inputs under jumper control.
- Conversion Time: 8 usec max. (100 KHz throughput)
- A/D Type: Successive Approximation.
- Monotonicity: Guaranteed over operating temperature range.
- Linearity: ±0.9 LSB.
- Zero Drift: ±2 PPM/°C.
- Gain Drift: ±2 PPM/°C.
- Trigger Source: Software Command, On-board Programmable Timer, or External Source.
Analog Outputs
- Channels: Two, independent.
- Type: 12-bit, double-buffered.
- Relative Accuracy: ±1 LSB.
- Output Ranges: 0-2.5V, 0-5V, 0-10V, +2.5V, ±5V, ±10V.
- Settling Time: 15 usec to ± 1 bit.
- Output Drive: 5 mA.
- Output Impedance: 0.5 ohms.
Digital I/0
(8 Bits on Main 37-Pin D Connector)
Inputs:
Outputs:
Digital I/O
(24 Bits on Auxiliary 40-Pin IDC Connector)
Inputs:
Outputs:
Programmable Timer
- Type: 82C54-2 programmable interval timer.
- Counters: Three 16-bit down counters, two concatenated with 1 MHz clock as programmable timer. One counter may be driven by an external input to 10 MHz or driven by internal 1 MHz clock source.
- Output Drive: 2.2 mA at 0.45V (5 LSTTL loads).
- Input Gate: TTL/DTL/CMOS compatible.
- Clock Input Frequency: DC to 10 MHz.
- Active Count Edge: Negative edge.
- Minimum Clock Pulse Width: 30 nS high/50 nS low.
- Timer Range: 2.5 MHz to < 1 pulse per hour.
Environmental
- Operating Temperature Range: 0° to 50°C.
- Storage Temperature Range: -20° to +70°C.
- Humidity: 0 to 90% RH, non-condensing.
- Weight: 10 oz.
- Power Required: +5 VDC, 800 mA.
Size
Regulatory Compliance
- This product is in full compliance with CE requirements.
| Model | Price (USD) |
|---|---|
| A1216E | 529.00 |
| A1216E-S01 | 499.00 |