MAX125CCAX+D by Analog Devices

2x4-Channel, Simultaneous-Sampling, 14-Bit DAS

Status: Active
Series: MAX125
RoHS: Unknown
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The MAX125/MAX126 are high-speed, multichannel, 14-bit data-acquisition systems (DAS) with simultaneous track/holds (T/Hs). These devices contain a 14-bit, 3µs, successive-approximation analog-to-digital converter (ADC), a +2.5V reference, a buffered reference input, and a bank of four simultaneous-sampling T/H amplifiers that preserve the relative phase information of the sampled inputs. The MAX125/MAX126 have two multiplexed inputs for each T/H, allowing a total of eight inputs. In addition, the converter is overvoltage tolerant to ±17V; a fault condition on any channel will not harm the IC. Available input ranges are ±5V (MAX125) and ±2.5V (MAX126). An on-board sequencer converts one to four channels per active-low CONVST pulse. In the default mode, one T/H output (CH1A) is converted. An interrupt signal (active-low INT) is provided after the last conversion is complete. Convert two, three, or four channels by reprogramming the MAX125/MAX126 through the bidirectional parallel interface. Once programmed, the MAX125/MAX126 continue to convert the specified number of channels per active-low CONVST pulse until they are reprogrammed. The channels are converted sequentially, beginning with CH1. The INT signal always follows the end of the last conversion in a conversion sequence. The ADC converts each assigned channel in 3µs and stores the result in an internal 14x4 RAM. Upon completion of the conversions, data can be accessed by applying successive pulses to the active-low RD pin. Four successive reads access four data words sequentially. The parallel interface's data-access and bus-release timing specifications are compatible with most popular digital signal processors and 16-bit/32-bit microprocessors, so the MAX125/MAX126 conversion results can be accessed without resorting to wait states.

Prices starting from US$20.00


Distributor Starting From Stock
Logo for Chip One Stop Chip One Stop US$20.00
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Logo for element14 element14 US$39.98
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Logo for Newark Electronics Newark Electronics -
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Features

Four Simultaneous-Sampling T/H Amplifiers with Two Multiplexed Inputs (eight single-ended inputs total)
3µs Conversion Time per Channel
Throughput: 250ksps (1 channel) 142ksps (2 channels) 100ksps (3 channels) 76ksps (4 channels)
250ksps (1 channel)
142ksps (2 channels)
100ksps (3 channels)
76ksps (4 channels)
Input Range: ±5V (MAX125) ±2.5V (MAX126)
±5V (MAX125)
±2.5V (MAX126)
Fault-Protected Input Multiplexer (±17V)
±5V Supplies
Internal +2.5V or External Reference Operation
Programmable On-Board Sequencer
High-Speed Parallel DSP Interface

Specifications

Resolution (bits) (ADC) 14
# Input Channels 8
Conv. Rate (ksps) (max) 250
Data Bus µP/14
ADC Architecture SAR
Diff/S.E. Input S.E. Only
Internal VREF (V) (nominal) 2.5
External VREF (V) (min) 2.25
External VREF (V) (max) 2.75
Bipolar VIN (±V) (max) 5
INL (±LSB) 2
Package/Pins SSOP/36
BudgetaryPrice (See Notes) 20.29


MAX125CCAX+D Data & Signal Conversion by Analog Devices

ADC 8-CH SAR 14BIT 250KSPS SSOP-36

Status: Unknown
Series: Octal 14-Bit SAR ADCs
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

Specifications

Resolution (Bits) 14bit
Sampling Rate 250kSPS
Input Channel Type Single Ended
Data Interface Parallel
Supply Voltage Type Dual (+/-)
Supply Voltage Min 4.75V
Supply Voltage Max 5.25V
ADC / DAC Case Style SSOP
No. of Pins 36Pins
Operating Temperature Min 0°C
Operating Temperature Max 70°C
Product Range Octal 14-Bit SAR ADCs
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

ADC, 8-CH, SAR, 14BIT, 250KSPS, SSOP-36 | Farnell
Adc, 8-Ch, Sar, 14Bit, 250Ksps, Ssop-36 | Newark Electronics

Frequently Asked Questions

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Is the MAX125CCAX+D RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX125CCAX+D have stock available?

Authorised distributors including Chip One Stop, element14, Farnell and Newark Electronics have stock available or on a lead time for MAX125CCAX+D .

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