MAX146AEAP+ by Analog Devices

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

Status: Active
Series: MAX146
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 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$11.21

Distributor Stock
Logo for CoreStaff
CoreStaff
from US$11.21
16
in stock
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Logo for Farnell UK
Farnell
from US$30.93
0
in stock
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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

Last 6 months Inventory & Pricing History

MAX146AEAP+ - Integrated Circuits by Analog Devices

ADC OCTAL SAR 12BIT 133KSPS SSOP-20

Semiconductors - ICs
> Data & Signal Conversion
> Analog-to-Digital Converters - ADC
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 -40°C
Operating Temperature Max 85°C
Product Range Octal 12-Bit SAR ADCs
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Last 6 months Inventory & Pricing History

Alternative Descriptions

ADC, OCTAL, SAR, 12BIT, 133KSPS, SSOP-20 | Farnell

Frequently Asked Questions

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Is the MAX146AEAP+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including CoreStaff and Farnell have stock available or on a lead time for MAX146AEAP+ .

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