Аналого-цифровые преобразователи (АЦП) MAX125CCAX+D

АЦП , 14 бит, 250 Квыборок/с, Несимметричный, Параллельный, Биполярный (+/-), 4.75 В

The MAX125CCAX+D is a 2 x 4-channel, simultaneous sampling 14bit data acquisition system (DAS) in 36 pin SSOP package. This use a successive-approximation conversion technique and four simultaneous-sampling track/hold (T/H) amplifiers to convert analogue signals into 14bit digital outputs. Each T/H has two multiplexed inputs allowing a total of eight inputs. Each T/H output is converted and stored in memory to be accessed sequentially by the parallel interface with successive read cycles. The parallel interface's data access and bus-release timing specifications are compatible with most popular digital signal processors and 16bit/32bit microprocessors, so the device conversion results can be accessed without resorting to wait states. It is used in vibration, waveform analysis and power grid synchronization.

• Dual supply voltage of ±5V & single supply voltage range is 4.75V to 5.25V
• Operating temperature range from 0°C to 70°C
• Conversion time per channel is 3µs (mode 1, 1 channel), integral nonlinearity is ±2LSB
• Fault-protected input multiplexer (±17V)
• Internal +2.5V or external reference operation, gain error of ±5mV at TA = +25°C
• Programmable on-board sequencer
• SINAD of 75dB, THD of -89 dB & SFDR of 90dB at (fCLK = 16MHz, fIN = 10.06KHz)
• Throughput of 250Ksps (1 channel), 142Ksps (2 channels), 100Ksps (3 channels) & 76Ksps (4 channels)
• Acquisition time is 1µs
• Small signal bandwidth is 8MHz

Области применения

Обработка Сигнала, Промышленное, Привод Двигателя и Управление, Управление Питанием