Description

The ADR7700 is an high resolution/accuracy, build-to-order data acquisition interface designed primarily for OEMs. Each unit is scaled and calibrated to customer specified input ranges. This low-cost build-to-order serial data acquisition interface is easy to use with Visual Basic, Basic, C, Visual C++, Labview, Testpoint, or other high level languages that allow access to a serial port.

Click here to download the ADR7700 User Manual

Key Features

16-bit analog input with OEM specified input ranges
High accuracy, sigma-delta core with calibration via internal 33-bit A/D
Low offset or gain error via internal calibration.
Two broadcast modes (1Hz and 10Hz)
Maximum sample rate of 50hz in polling configuration
4 Digital I/O Lines (Sink/Source 20mA)
Programmable Interrupts on Digital Inputs
RS232,RS485 Communication
Daisy-Chain Capabilities via RS485 (Up to 10 boards)
Operates on standard 5VDC or 9-24VDC

Technical Specification

Supply Voltage	5VDC or 9-24VDC
Supply Current (Outputs unloaded)	40mA Typical 50mA Max
Operating Temperature	0-50C

Analog Input (Single-Ended or Differential)
Resolution	16-bits
Integral Non-Linearity	0.0015%
Input Ranges Available SE (Resolution Per Step) Note: Range set at factory. Custom ranges available.	0-1.25V(19uV), 0-2.5V(38uV), 0-5V(76uV), 0-10V(152uV), 0-15V(228uV), 0-20V(305uV)
Input Ranges Available DIFF (Resolution Per Step) Note: Range set at factory. Custom ranges available.	0-1.25V(38uV), 0-2.5V(76uV), 0-5V (152uV), 0-10V(305uV), 0-15V(458uV), 0-20V(610uV)
Maximum Noise	10uV RMS
Reference Stability	7ppm/C
Maximum Sample Rate	60Hz
Frequency Response	15.72Hz
Broadcast Rates	1Hz or 10Hz

Digital I/O (4 TTL)
Sink Current	20mA
Source Current	20mA

SERIAL PORT (RS232)
Type	RS232 and RS485 9600 Baud (other rates by special order)
Daisy-Chain	Up to ten boards via RS485