MAX1249BCEE+ by Analog Devices

+2.7V to +5.25V, Low-Power, 4-Channel, Serial, 10-Bit ADCs in QSOP-16

Status: Active
Series: MAX1249
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

The MAX1248/MAX1249 10-bit data-acquisition systems combine a 4-channel multiplexer, high-bandwidth track/hold, and serial interface with high conversion speed and low power consumption. They operate from a single +2.7V to +5.25V supply, and their 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 MAX1248/MAX1249 use either the internal clock or an external serial-interface clock to perform successive-approximation analog-to-digital conversions. The MAX1248 has an internal 2.5V reference, while the MAX1249 requires an external reference. Both parts have a reference-buffer amplifier with a ±1.5% voltage adjustment range. These devices provide a hard-wired active-low SHDN 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 MAX1248/MAX1249, 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 MAX1248/MAX1249 are available in a 16-pin DIP and a very small QSOP that occupies the same board area as an 8-pin SO. For 8-channel versions of these devices, see the MAX148/MAX149 datasheet.

Prices starting from US$9.40


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Logo for element14 element14 US$9.40
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Logo for Newark Electronics Newark Electronics -
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Features

4-Channel Single-Ended or 2-Channel Differential Inputs
Single +2.7V to +5.25V Operation
Internal 2.5V Reference (MAX1248)
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
16-Pin QSOP Package (same area as 8-pin SO)

Specifications

Resolution (bits) (ADC) 10
# Input Channels 4
Conv. Rate (ksps) (max) 133
Data Bus SPI
ADC Architecture SAR
Diff/S.E. Input Both
External VREF (V) (min) 1
External VREF (V) (max) 5.25
Unipolar VIN (V) (max) 2.5
Bipolar VIN (±V) (max) 1.25
INL (±LSB) 1
Package/Pins PDIP/16QSOP/16
BudgetaryPrice (See Notes) 5.85


MAX1249BCEE+ Data & Signal Conversion by Analog Devices

ADC 4-CH SAR 10BIT 133KSPS QSOP-16

Status: Unknown
Series: Quad 10-Bit SAR ADCs
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

Specifications

Resolution (Bits) 10bit
Sampling Rate 133kSPS
Input Channel Type Differential Single Ended
Data Interface SPI
Supply Voltage Type Single
Supply Voltage Min 2.7V
Supply Voltage Max 5.25V
ADC / DAC Case Style QSOP
No. of Pins 16Pins
Operating Temperature Min 0°C
Operating Temperature Max 70°C
Product Range Quad 10-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, 4-CH, SAR, 10BIT, 133KSPS, QSOP-16 | Farnell
Adc, 4-Ch, Sar, 10Bit, 133Ksps, Qsop-16 | Newark Electronics

Frequently Asked Questions

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Is the MAX1249BCEE+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including element14, Farnell and Newark Electronics have stock available or on a lead time for MAX1249BCEE+ .

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