MAX197BEAI+ by Analog Devices

Multi-Range (±10V, ±5V, +10V, +5V), Single +5V, 12-Bit DAS with 8+4 Bus Interface


The MAX197 multi-range, 12-bit data-acquisition system (DAS) requires only a single +5V supply for operation, yet accepts signals at its analog inputs that may span both above the power-supply rail and below ground. This system provides 8 analog input channels that are independently software programmable for a variety of ranges: ±10V, ±5V, 0V to +10V, or 0V to +5V. This increases effective dynamic range to 14 bits, and provides the user flexibility to interface 4mA-to-20mA, ±12V, and ±15V powered sensors to a single +5V system. In addition, the converter is overvoltage tolerant to ±16.5V; a fault condition on any channel does not affect the conversion result of the selected channel. Other features include a 5MHz bandwidth track/hold, a 100ksps throughput rate, software-selectable internal or external clock and acquisition, 8+4 parallel interface, and an internal 4.096V or an external reference. A hardware active-low SHDN pin and two programmable power-down modes (STBYPD, FULLPD) are provided for low-current shutdown between conversions. In STBYPD mode, the reference buffer remains active, eliminating start-up delays. The MAX197 employs a standard microprocessor (µP) interface. A three-state data I/O port is configured to operate with 8-bit data buses, and data-access and bus-release timing specifications are compatible with most popular µPs. All logic inputs and outputs are TTL/CMOS compatible. The MAX197 is available in 28-pin DIP, wide SO, SSOP, and ceramic SB packages. For a different combination of ranges (±4V, ±2V, 0V to 4V, 0V to 2V), refer to the MAX199 data sheet. For 12-bit bus interface, refer to the MAX196 and MAX198 data sheets.

Where to Buy

Prices starting from US$41.39

Distributor Stock
Logo for RS
RS
from US$41.39
25
in stock
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Logo for Farnell
Farnell
from US$41.62
-
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Features

12-Bit Resolution, 1/2LSB Linearity
Single +5V Operation
Software-Selectable Input Ranges: ±10V, ±5V, 0V to 10V, 0V to 5V
Fault-Protected Input Multiplexer (±16.5V)
8 Analog Input Channels
6µs Conversion Time, 100ksps Sampling Rate
Internal or External Acquisition Control
Internal 4.096V or External Reference
Two Power-Down Modes
Internal or External Clock

Specifications

Resolution (bits) (ADC) 12
# Input Channels 8
Conv. Rate (ksps) (max) 100
Data Bus µP/8
ADC Architecture SAR
Diff/S.E. Input S.E. Only
Internal VREF (V) (nominal) 4.096
External VREF (V) (min) 2.4
External VREF (V) (max) 4.18
Unipolar VIN (V) (max) 10
Bipolar VIN (±V) (max) 10
INL (±LSB) 1
Package/Pins SOIC (W)/28SSOP/28
BudgetaryPrice (See Notes) 19.13


MAX197BEAI+ Special Function by Analog Devices

DATA ACQUISITION SYSTEM SSOP-28

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

IC Function Data Acquisition System
Supply Voltage Min 4.75V
Supply Voltage Max 5.25V
IC Package Type SSOP
No. of Pins 28Pins
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

MAX197BEAI+, General Purpose ADCs | RS
DATA ACQUISITION SYSTEM, SSOP-28 | Farnell

Frequently Asked Questions

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Is the MAX197BEAI+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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