MAX1281BCUP+ by Analog Devices

400ksps/300ksps, Single-Supply, Low-Power, 8-Channel, Serial 12-Bit ADCs with Internal Reference

Status: Active
Series: MAX1281B
RoHS: Unknown
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The MAX1280/MAX1281 12-bit ADCs combine an 8-channel analog-input multiplexer, high-bandwidth track/hold, and serial interface with high conversion speed and low power consumption. The MAX1280 operates from a single +4.5V to +5.5V supply; the MAX1281 operates from a single +2.7V to +3.6V supply. Both devices' analog inputs are software configurable for unipolar/bipolar and single-ended/pseudo-differential operation. The 4-wire serial interface connects directly to SPI™/QSPI™/MICROWIRE™ devices without external logic. A serial strobe output allows direct connection to TMS320-family digital signal processors. The MAX1280/MAX1281 use an external serial-interface clock to perform successive-approximation analog-to-digital conversions. Both parts feature an internal +2.5V reference and a reference-buffer amplifier with a ±1.5% voltage-adjustment range. An external reference with a 1V to VDD1 range may also be used. The MAX1280/MAX1281 provide a hard-wired active-low SHDN pin and four software-selectable power modes (normal operation, reduced power, fast power-down, and full power-down). These devices can be programmed to automatically shut down at the end of a conversion or to operate with reduced power. When using the power-down modes, accessing the serial interface automatically powers up the devices, and the quick turn-on time allows them to be powered down between all conversions. This technique can cut supply current to under 100µA at reduced sampling rates. The MAX1280/MAX1281 are available in 20-pin TSSOP packages. These devices are higher-speed versions of the MAX146/MAX147 (for more information, see the respective data sheet).

Prices starting from US$15.68


Distributor Starting From Stock
Logo for Newark Electronics Newark Electronics US$18.02
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Logo for element14 element14 US$16.02
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Features

8-Channel Single-Ended or 4-Channel Pseudo-Differential Inputs
Internal Multiplexer and Track/Hold
Single-Supply Operation +4.5V to +5.5V (MAX1280) +2.7V to +3.6V (MAX1281)
+4.5V to +5.5V (MAX1280)
+2.7V to +3.6V (MAX1281)
Internal +2.5V Reference
400ksps Sampling Rate (MAX1280)
Low Power 2.5mA (400ksps) 1.3mA (Reduced-Power Mode) 0.9mA (Fast Power-Down Mode) 2µA (Full Power-Down)
1.3mA (Reduced-Power Mode)
0.9mA (Fast Power-Down Mode)
2µA (Full Power-Down)
SPI/QSPI/MICROWIRE/TMS320-Compatible 4-Wire Serial Interface
4-Wire Serial Interface
Software-Configurable Unipolar or Bipolar Inputs
20-Pin TSSOP Package

Specifications

Resolution (bits) (ADC) 12
# Input Channels 8
Conv. Rate (ksps) (max) 300
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 TSSOP/20
BudgetaryPrice (See Notes) 9.75


MAX1281BCUP+ Data & Signal Conversion by Analog Devices

ADC 8-CH SAR 12BIT 300KSPS TSSOP-20

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

Specifications

Resolution (Bits) 12bit
Sampling Rate 300kSPS
Input Channel Type Pseudo Differential Single Ended
Data Interface SPI
Supply Voltage Type Single
Supply Voltage Min 2.7V
Supply Voltage Max 3.6V
ADC / DAC Case Style TSSOP
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

Adc, 8-Ch, Sar, 12Bit, 300Ksps, Tssop-20 | Newark Electronics
ADC, 8-CH, SAR, 12BIT, 300KSPS, TSSOP-20 | element14

Frequently Asked Questions

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Is the MAX1281BCUP+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Newark Electronics, element14 and Farnell have stock available or on a lead time for MAX1281BCUP+ .

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