MAX155BEWI+ by Analog Devices

High-Speed, 8-Channel, 8-Bit ADC with Simultaneous Track/Holds and Reference


The MAX155/MAX156 are high-speed, 8-bit, multichannel analog-to-digital converters (ADCs) with simultaneous track/holds (T/Hs) to eliminate timing differences between input channel samples. The MAX155 has 8 analog input channels and the MAX156 has 4 analog input channels. Each channel has its own T/H, and all T/Hs sample at the same instant. The ADC converts a channel in 3.6µs and stores the result in an internal 8x8 RAM. The MAX155/MAX156 also feature a 2.5V internal reference and power-down capability, providing a complete, sampling data-acquisition system. When operating from a single +5V supply, the MAX155/MAX156 perform either unipolar or bipolar, single-ended or differential conversions. For applications requiring wider dynamic range or bipolar conversions around ground, the VSS supply pin may be connected to -5V. Conversions are initiated with a pulse to the active-low WR pin, and data is accessed from the ADC’s RAM with a pulse to the active-low RD pin. A bidirectional interface updates the channel configuration and provides output data. The ADC may also be wired for output-only operation.The MAX155 comes in 28-pin PDIP and wide SO packages, and the MAX156 comes in 24-pin narrow PDIP and 28-pin wide SO packages.

Where to Buy

Prices starting from US$23.95

Distributor Stock
Logo for Farnell
Farnell
from US$23.95
4
in stock
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Logo for Analog Devices
Analog Devices
from US$25.43
183
in stock
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Logo for Newark Electronics
Newark Electronics
from US$32.03
4
in stock
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Logo for element14
element14
from US$32.53
4
in stock
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Features

8 Simultaneously Sampling Track/Hold Inputs
3.6µs Conversion Time Per Channel
Unipolar or Bipolar Input Range
Single-Ended or Differential Inputs
Mixed Input Configurations Possible
2.5V Internal Reference
Single +5V or Dual ±5V Supply Operation

Specifications

Resolution (bits) (ADC) 8
# Input Channels 8
Conv. Rate (ksps) (max) 250
Data Bus µP/8
ADC Architecture SAR
Diff/S.E. Input Both
Internal VREF (V) (nominal) 2.5
Unipolar VIN (V) (max) 2.5
Bipolar VIN (±V) (max) 2.5
INL (±LSB) 0.5
Package/Pins SOIC (W)/28
BudgetaryPrice (See Notes) 11.18


MAX155BEWI+ Data & Signal Conversion by Analog Devices

ADC 8-CH SAR 8BIT 250KSPS WSOIC-28

Status: Unknown
Series: Octal 8-Bit SAR ADCs
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Resolution (Bits) 8bit
Sampling Rate 250kSPS
Input Channel Type Differential Single Ended
Data Interface Parallel
Supply Voltage Type Single
Supply Voltage Min 4.75V
Supply Voltage Max 5.25V
ADC / DAC Case Style WSOIC
No. of Pins 28Pins
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range Octal 8-Bit SAR ADCs
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

High-Speed, 8-Channel, 8-Bit A | Analog Devices
Adc, 8-Ch, Sar, 8Bit, 250Ksps, Wsoic-28 | Newark Electronics
ADC, 8-CH, SAR, 8BIT, 250KSPS, WSOIC-28 | element14

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX155BEWI+ ?

Additional datasheets, footprints and schematics for MAX155BEWI+ are listed on our Part Details page. You can also find images and similar parts to MAX155BEWI+ on this page.

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Is the MAX155BEWI+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX155BEWI+ have stock available?

Authorised distributors including Analog Devices, Newark Electronics, element14 and Farnell have stock available or on a lead time for MAX155BEWI+ .

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