MAX146BCAP+ by Analog Devices

+2.7V, Low-Power, 8-Channel, Serial 12-Bit ADCs


The MAX146/MAX147 12-bit data-acquisition systems combine an 8-channel multiplexer, high-bandwidth track/hold, and serial interface with high conversion speed and low power consumption. The MAX146 operates from a single +2.7V to +3.6V supply; the MAX147 operates from a single +2.7V to +5.25V supply. Both devices' analog inputs are software configurable for unipolar/bipolar and single-ended/differential operation. The 4-wire serial interface connects directly to SPI™/ QSPI™ and MICROWIRE™ devices without external logic. A serial strobe output allows direct connection to TMS320-family digital signal processors. The MAX146/MAX147 use either the internal clock or an external serial-interface clock to perform successive-approximation analog-to-digital conversions. The MAX146 has an internal 2.5V reference, while the MAX147 requires an external reference. Both parts have a reference-buffer amplifier with a ±1.5% voltage-adjustment range. These devices provide a hard-wired SHDN-bar pin and a software-selectable power-down, and can be programmed to automatically shut down at the end of a conversion. Accessing the serial interface automatically powers up the MAX146/MAX147, and the quick turn-on time allows them to be shut down between all conversions. This technique can cut supply current to under 60µA at reduced sampling rates. The MAX146/MAX147 are available in 20-pin DIP and SSOP packages. For 4-channel versions of these devices, see the MAX1246/MAX1247 data sheet.

Where to Buy

Prices starting from US$13.97

Distributor Stock
Logo for RS
RS
from US$18.11
27
in stock
Buy Now
Logo for Analog Devices
Analog Devices
from US$14.28
700
in stock
Buy Now
Logo for Newark Electronics
Newark Electronics
from US$16.99
14
in stock
Buy Now
Logo for element14
element14
from US$18.32
14
in stock
Buy Now
Logo for Farnell
Farnell
from US$14.03
14
in stock
Buy Now
Logo for Avnet Asia
Avnet Asia
from US$13.97
-
Buy Now

Features

8-Channel Single-Ended or 4-Channel Differential Inputs
Single-Supply Operation +2.7V to +3.6V (MAX146) +2.7V to +5.25V (MAX147)
+2.7V to +3.6V (MAX146)
+2.7V to +5.25V (MAX147)
Internal 2.5V Reference (MAX146)
Low Power 1.2mA (133ksps, 3V supply) 54µA (1ksps, 3V supply) 1µA (power-down mode)
1.2mA (133ksps, 3V supply)
54µA (1ksps, 3V supply)
1µA (power-down mode)
SPI/QSPI/MICROWIRE/TMS320-Compatible 4-Wire Serial Interface
Software-Configurable Unipolar or Bipolar Inputs
20-Pin DIP/SSOP Packages

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) 2.5
External VREF (V) (min) 1
External VREF (V) (max) 3.6
Unipolar VIN (V) (max) 2.5
Bipolar VIN (±V) (max) 1.25
INL (±LSB) 1
Package/Pins SSOP/20
BudgetaryPrice (See Notes) 10.06


MAX146BCAP+ Data & Signal Conversion by Analog Devices

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

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

The MAX146/MAX147 12-bit data-acquisition systems combine an 8-channel multiplexer, high-bandwidth track/hold, and serial interface with high conversion speed and low power consumption. The MAX146 oper- ates from a single +2.7V to +3.6V supply; the MAX147 operates from a single +2.7V to +5.25V supply. Both devices’ analog inputs are software configurable for unipolar/bipolar and single-ended/differential operation. The 4-wire serial interface connects directly to SPI™/ QSPI™ and MICROWIRE™ devices without external logic. A serial strobe output allows direct connection to TMS320-family digital signal processors. The MAX146/MAX147 use either the internal clock or an exter- nal serial-interface clock to perform successive-approxi- mation analog-to-digital conversions. The MAX146 has an internal 2.5V reference, while the MAX147 requires an external reference. Both parts have a reference-buffer amplifier with a ±1.5% voltage- adjustment range. These devices provide a hard-wired SHDN pin and a software-selectable power-down, and can be pro- grammed to automatically shut down at the end of a con- version. Accessing the serial interface automatically powers up the MAX146/MAX147, and the quick turn-on time allows them to be shut down between all conver- sions. This technique can cut supply current to under 60µA at reduced sampling rates. The MAX146/MAX147 are available in 20-pin DIP and SSOP packages. For 4-channel versions of these devices, see the MAX1246/MAX1247 data sheet.

Specifications

Resolution (Bits) 12bit
Sampling Rate 133kSPS
Input Channel Type Differential Single Ended
Data Interface SPI
Supply Voltage Type Single
Supply Voltage Min 2.7V
Supply Voltage Max 3.6V
ADC / DAC Case Style SSOP
No. of Pins 20Pins
Operating Temperature Min 0°C
Operating Temperature Max 70°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

+2.7V, Low-Power, 8-Channel, S | Analog Devices
MAX146BCAP+,A to D Converters - ADC | RS
Adc, 8-Ch, Sar, 12Bit, 133Ksps, Ssop-20 | Newark Electronics
ADC, 8-CH, SAR, 12BIT, 133KSPS, SSOP-20 | element14
ADC Single SAR 133ksps 12-bit Serial 20-Pin SSOP | Avnet Asia

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX146BCAP+ ?

Additional datasheets, footprints and schematics for MAX146BCAP+ are listed on our Part Details page. You can also find images and similar parts to MAX146BCAP+ on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for MAX146BCAP+ on our Product Comparison page. Access via the 'View Pricing & Stock' button to view MAX146BCAP+ price breaks, MOQs, lead times, inventory and SKUs from distributors.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the MAX146BCAP+ you can contact the distributor directly for product support, shipping queries etc.

Is the MAX146BCAP+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX146BCAP+ have stock available?

Authorised distributors including Analog Devices, RS, Newark Electronics, element14 and Farnell have stock available or on a lead time for MAX146BCAP+ .

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for MAX146BCAP+ often in real-time on the comparison pages.

What if I can't find stock of MAX146BCAP+ ?

You can fill out our help required form which you can use to request a quote for MAX146BCAP+ from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.

We use cookies to improve your experience. See our privacy policy.
Okay