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MAX155 8-Channel 8-Bit ADC Datasheet

Photograph
MAX155BCWI - MAX155 8-Channel 8-Bit ADC with Track/Hold

Product Details

The MAX155 is an 8-channel, 8-bit analog to digital converter with simultaneous track/holds for each channel. The conversion time is 3.6µs and the result is stored in an internal RAM. The converter operates from a single +5V power supply or dual ±5V supplies. The converter accepts either unipolar or bipolar inputs. The MAX155 includes an internal 2.5V voltage reference and a power down capability.


Features

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

Pin Layout
Maxim MAX155 Pin Layout

Pin Description
Pin Number Description
1 AIN3 - Analog Input Channel 3
2 AIN2 - Analog Input Channel 2
3 AIN1 - Analog Input Channel 1
4 AIN0 - Analog Input Channel 0
5 MODE - Mode Selection Input
6 Vss - Negative Supply
7 CS - Chip Select
8 RD - Read Input
9 WR - Write Input
10 BUSY - Busy Output
11 CLK - External Clock Input
12 D7 - Data Output bit 7
13 D6 - Data Output bit 6
14 DGND - Digital Ground
15 D5 - Data Output bit 5
16 D4 - Data Output bit 4
17 D3 - Data Output bit 3
18 D2 - Data Output bit 2
19 D1 - Data Output bit 1
20 D0 - Data Output bit 0
21 REFOUT - Reference Output
22 REFIN - Reference Input
23 AGND - Analog Ground
24 Vdd - Positive Supply
25 AIN7 - Analog Input Channel 7
26 AIN6 - Analog Input Channel 6
27 AIN5 - Analog Input Channel 5
28 AIN4 - Analog Input Channel 4

Dimensional Drawing
MAX150 SOIC20 Dimension Drawing

Technical Data

Datasheet

Maxim Integrated - Datasheet for MAX155 Datasheet

Application Notes