National Instruments PC-LPM-16/PnP User Manual

Page 62

Appendix C Using Your PC-LPM-16 (Non-PnP) Board

PC-LPM-16/PnP User Manual

C-2

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National Instruments Corporation

Data FIFO Size

16 words

512 words

256 words

Dummy reads to A/D
and FIFO high-byte
and low-byte registers
after clearing data
FIFO

Required

Not required, but
allowed

ADC FIFO Data
Reading Order

Low byte before
high byte preferred

Low byte must be
read before high
byte

Overflow Error Bit
Location

Status Register 1,
bit 1

Status Register 2,
bit 1

Overrun Error Bit
Location

Not implemented

Status Register 2,
bit 0

Data Error Bit
Location

Not implemented

Status Register 1,
bit 1

5 and 12 V Supply
Fuses

Nonresettable

Self-resetting

-12 V Supply Power
Requirements

0 mA

15 mA typ

Performance Specification Changes

INL

1 LSB max

0.5 LSB max

Gain Error,

2.8 V or

to 10 V Range

3 LSB typ,

7 LSB max

2 LSB typ,

4 LSB max

2 LSB typ,

4 LSB max

Calibration Time

700

s typ

10 ms typ

Overvoltage
Protection or Analog
Input Powered Off

45 V

35 V

Table C-1.

Comparison of Characteristics (Continued)

Functional Changes

Legacy PC-LPM-16

Revised PC-LPM-16

PC-LPM-16PnP