Molecular Devices presents our latest Digidata 1440A digitizer for low-noise experiments. This high-resolution 16-bit data acquisition system is self-contained and communicates with the host computer via a USB 2.0 interface, which means extremely easy installation and setup. Designed for ease-of-use and fast results, the Digidata 1440A comes with versatile AxoScope for Windows software and is ready to take data immediately after installation. Absolutely no programming is necessary.

The Digidata 1440A has a maximum sampling rate of 250 kHz per channel, with an outstanding total data throughput rate of 4 megasamples per second. Both the inherent digitizer noise and channel crosstalk noise are rated at less than ±1 mV average p-p at 10 kHz, within a ±10 V input range. The front panel is well laid out with sixteen analog input channels and four analog output channels, eight general digital outputs, one dedicated digital output to trigger devices such as oscilloscopes, trigger inputs to start acquisition and to tag data. The back panel has four additional analog instrument telegraph inputs, as well as a DB-25 connector for the digital outputs.

Designed to support continuous data acquisition within a multitasking operating system, the Digidata 1440A digitizer is fully supported by our AxoScope 10 for Windows and pCLAMP 10 for Windows electrophysiology software.

With its USB 2.0 interface, you can easily connect the Digidata 1440A to a laptop computer without the need for a peripheral PC card.

AxoScope

AxoScope is turn-key data acquisition and analysis software for Windows, designed to replace oscilloscopes, chart recorders, and FM tape recorders. AxoScope provides up to sixteen channels of analog acquisition and four different acquisition modes. Acquire data continuously in Gap-Free mode with simultaneous display, at up to the speed of the digitizer. Set a trigger threshold for the Fixed-Length Events, Variable-Length Events or High-Speed Oscilloscope modes. Tag and add comments to the data in real time. Set analog output holding values. Open Axon-format ABF data files and quickly analyze sections of interest with an array of browsing and basic analysis tools. Preview data and page layout before printing. Additional features include voice tags, which allow tagging of data with spoken comments (requires a microphone and sound card), low-pass and high-pass digital filtering of incoming data, and Store Trace, which freezes a snapshot of a waveform on the screen for comparison with subsequent input.

Specifications

Analog Inputs
Number of input channels: 16 single-ended
Number of ADCs: 16
Sampling rates**: 1 Hz - 250 kHz
Resolution: 16-bit
Input range: -10.000 to +10.000 V
Input resistance: 1 MΩ
Gain value: 1

**Maximum aggregate throughput rate is 250 kHz x 16 input channels = 4 Megasamples/s

Analog Outputs
Number of channels: 4
Number of DACs: 4
Sampling rates: 1 Hz - 250 kHz
Resolution: 16-bit
Output range: -10.000 to +10.000 V
Output impedance: < 0.1Ω
Output short circuit to signal ground: ±25 mA

Digital Inputs
Number of bits: 16
Input type: TTL compatible
Trigger Inputs
Input type: TTL compatible
TAG: rising-edge sensitive
START: rising-edge sensitive

Digital Outputs
Number of bits: 8 (of 16) supported in software
SCOPE: dedicated trigger output
Output driver: advanced CMOS (AC) compatible
Output current: ±4 mA source, ±32 mA sink

Cable
Type: USB 2.0 braided
Length: 3 meters

System Requirements
For computer requirements, see the pCLAMP 10 requirements for PCs.

Additiional Information
The Digidata 1440A rack mountable main unit comes standard with:

USB 2.0 PCI card
USB 2.0 cable
External auto-switching power supply
Power cable
AxoScope 10 software CD
Printed manual