ISA总线模拟量输入板卡 Analog Input Legacy Products
AD8-16 产品技术规格
PC Interface

● ISA Bus

Analog Inputs

● No. of Channels: Eight differential or 16 single-ended inputs.

● Voltage Ranges: Software selectable, ±128 mV or 0-255 mV w/1 mV resolution, ±5V or 0-10V w/39 mV resolution.

● Overvoltage Protection: ±40 VDC, single channel.

● Input Impedance: 10 Megohm

● Accuracy: ±0.4% ±1 count.

● Linearity: ±1 count.

● Resolution: 8 bit binary.

● Temperature Coefficient: Zero and gain stability each ±1 LSB over full operating temperature range.

● Throughput: 16,600 conversions/second maximum.

Analog Outputs

● No. of Channels: 2

● Output Voltage Range: ±10 VDC.

● Resolution: 8 bit binary.

● Output Load: 5 mA maximum.

● Accuracy: ±0.4% ±1 bit.

Digital Inputs/Outputs

● Inputs

- No. of Inputs: 8 TTL- and switch-compatible.

- Inputs pulled up to +5 VDC by 1 Kilohm resistor.

- Logic Low: 0 to 0.4 VDC.

- Logic High: 2.4 to 24 VDC.

● Outputs:

- No. of Outputs: 8, TTL/DTL compatible. Outputs are tri-stated at power on and at reset. Zener diode protected at 5.6 VDC.

- Logic Low: 0 to 0.4 VDC at 24 mA sink current

- Logic High: 2.5 to 5.0 VDC at 10 mA source current.

Interrupts

● Level: Jumper selectable, levels 2-7.

● Enable/Disable: Interrupt generated by completion of A/D conversion. Interrupt cancelled when A/D data are read or when there is a computer write to base address plus 1 (reset interrupt request).

Counter Timer

● No. of Counters: Three independent, 16-bit, fully programmable.

● Clock: Either internal derived from computer clock (or color oscillator frequency) divided by 1/2, 1/4, 1/8, or 1/16 or from external clock source.

● Drive Capability: 5 LSTTL loads. (2.2 mA at 0.45 VDC).

● Input Load (Gate and Clock): ±10 mA, TTL/CMOS compatible.

● Input Clock Frequency:10 MHz max.

● Active Count Edge:Negative edge.

● Clock Pulse Width: 50 nSec high / 50 nSec low min.

Environmental

● Operating Temperature Range: 0° to 60°C.

● Storage Temperature Range: -40° to +100°C.

● Humidity: 0 to 90% RH, non-condensing.

● 13.1 inches (333mm), plugs into a “long slot” in PC

Power Required

● +5 VDC at 500 mA.

● +12 VDC at 20 mA.

● -12 VDC at 20 mA.

Regulatory Compliance

● This product is designed to be in full compliance with CE requirements.

 
 

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