MAX186CEWP+ by Analog Devices

Low-Power, 8-Channel, Serial 12-Bit ADCs


The MAX186/MAX188 are 12-bit data-acquisition systems that combine an 8-channel multiplexer, high-bandwidth track/hold, and serial interface together with high conversion speed and ultra-low power consumption. The devices operate with a single +5V supply or dual ±5V supplies. The analog inputs are software configurable for unipolar/bipolar and single-ended/differential operation. The 4-wire serial interface directly connects to SPI, QSPI™ and MICROWIRE® devices without external logic. A serial strobe output allows direct connection to TMS320 family digital signal processors. The MAX186/MAX188 use either the internal clock or an external serial-interface clock to perform successive-approximation A/D conversions. The serial interface can operate beyond 4MHz when the internal clock is used. The MAX186 has an internal 4.096V reference while the MAX188 requires an external reference. Both parts have a reference-buffer amplifier that simplifies gain trim. The MAX186/MAX188 provide a hard-wired active-low SHDN pin and two software-selectable power-down modes. Accessing the serial interface automatically powers up the devices, and the quick turn-on time allows the MAX186/MAX188 to be shut down between every conversion. Using this technique of powering down between conversions, supply current can be cut to under 10µA at reduced sampling rates. The MAX186/MAX188 are available in 20-pin PDIP and SO packages, and in a shrink small-outline package (SSOP), that occupies 30% less area than an 8-pin PDIP. For applications that call for a parallel interface, see the MAX180/MAX181 data sheet. For anti-aliasing filters, consult the MAX274/MAX275 data sheet.

Where to Buy

Prices starting from US$24.97

Distributor Stock
Logo for Farnell
Farnell
from US$32.52
No stock
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Logo for Newark Electronics
Newark Electronics
from US$24.97
-
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Logo for element14
element14
from US$29.17
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Features

8-Channel Single-Ended or 4-Channel Differential Inputs
Single +5V or ±5V Operation
Low Power: 1.5mA (Operating Mode) 2µA (Power-Down Mode)
1.5mA (Operating Mode)
2µA (Power-Down Mode)
Internal Track/Hold, 133kHz Sampling Rate
Internal 4.096V Reference (MAX186)
SPI-/QSPI-/MICROWIRE-/TMS320-Compatible 4-Wire Serial Interface
Software-Configurable Unipolar or Bipolar Inputs
20-Pin PDIP, SO, SSOP Packages
Evaluation Kit Available

Specifications

Resolution (bits) (ADC) 12
# Input Channels 8
Conv. Rate (ksps) (max) 133
Data Bus SPI
ADC Architecture SAR
Diff/S.E. Input Both
Internal VREF (V) (nominal) 4.096
External VREF (V) (min) 2.5
External VREF (V) (max) 5.25
Unipolar VIN (V) (max) 4.096
Bipolar VIN (±V) (max) 2.048
Package/Pins PDIP/20SOIC (W)/20SSOP/20
BudgetaryPrice (See Notes) 13.26


MAX186CEWP+ Data & Signal Conversion by Analog Devices

ADC 8-CH SAR 12BIT 133KSPS WSOIC-20

Status: Unknown
Series: Octal 12-Bit SAR ADCs
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Resolution (Bits) 12bit
Sampling Rate 133kSPS
Input Channel Type Differential Single Ended
Data Interface SPI
Supply Voltage Type Dual (+/-)
Supply Voltage Min 4.75V
Supply Voltage Max 5.25V
ADC / DAC Case Style WSOIC
No. of Pins 20Pins
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range Octal 12-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, 12Bit, 133Ksps, Wsoic-20 | Newark Electronics
ADC, 8-CH, SAR, 12BIT, 133KSPS, WSOIC-20 | Farnell

Frequently Asked Questions

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Is the MAX186CEWP+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX186CEWP+ have stock available?

Authorised distributors including Newark Electronics, element14 and Farnell have stock available or on a lead time for MAX186CEWP+ .

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