MAX1247BEEE+ by Analog Devices

+2.7V, Low-Power, 4-Channel, Serial 12-Bit ADCs in QSOP-16

Status: Active
Series: MAX1247
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

The MAX1246/MAX1247 12-bit data-acquisition systems combine a 4-channel multiplexer, high-bandwidth track/hold, and serial interface with high conversion speed and low power consumption. The MAX1246 operates from a single +2.7V to +3.6V supply; the MAX1247 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 MAX1246/MAX1247 use either the internal clock or an external serial-interface clock to perform successive-approximation analog-to-digital conversions. The MAX1246 has an internal 2.5V reference, while the MAX1247 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 MAX1246/MAX1247, 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 MAX1246/MAX1247 are available in a 16-pin DIP and a small QSOP that occupies the same board area as an 8-pin SO. For 8-channel versions of these devices, see the MAX146/MAX147 data sheet.

Prices starting from US$15.52


Distributor Starting From Stock
Logo for Newark Electronics Newark Electronics US$15.52
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Logo for element14 element14 US$17.30
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Features

4-Channel Single-Ended or 2-Channel Differential Inputs
Single-Supply Operation: +2.7V to +3.6V (MAX1246) +2.7V to +5.25V (MAX1247)
+2.7V to +3.6V (MAX1246)
+2.7V to +5.25V (MAX1247)
Internal 2.5V Reference (MAX1246)
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) 12
# 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) 8.01


MAX1247BEEE+ Data & Signal Conversion by Analog Devices

ADC 4-CH SAR 12BIT 133KSPS QSOP-16

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

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 5.25V
ADC / DAC Case Style QSOP
No. of Pins 16Pins
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range Quad 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, 4-Ch, Sar, 12Bit, 133Ksps, Qsop-16 | Newark Electronics
ADC, 4-CH, SAR, 12BIT, 133KSPS, QSOP-16 | element14

Frequently Asked Questions

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This part has not been flagged as RoHS Compliant.

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