MAX1377ATP+ by Analog Devices

Dual, 12-Bit, 1.25Msps, Simultaneous-Sampling ADCs with Serial Interface


The MAX1377/MAX1379/MAX1383 feature two simultaneous-sampling, low-power, 12-bit ADCs with serial interface and internal voltage reference. Fast sampling rate, low power dissipation, and excellent dynamic performance make the MAX1377/MAX1379/MAX1383 ideal for industrial process control, motor control, and RF applications. Conversion results are available through a SPI™-/QSPI™-/MICROWIRE™-/DSP-compatible interface with independent serial digital outputs for each channel. The serial outputs allow twice as much data to be transferred at the given clock rate. The conversion results for both ADCs can also be output on a single digital output for microcontrollers (µCs) and DSPs with only a single serial input available. The MAX1377 operates from a 2.7V to 3.6V analog supply and the MAX1379/MAX1383 operate from a 4.75V to 5.25V analog supply. A separate 1.8V to AVDD digital supply allows interfacing to low voltage logic without the use of level translators. Two power-down modes, partial and full, allow the MAX1377/MAX1379 and MAX1383 (full power-down only) to save power between conversions. Partial power-down mode reduces the supply current to 2mA while leaving the reference enabled for quick power-up. Full powerdown mode reduces the supply current to 1µA. The MAX1377/MAX1379 inputs accept voltages between zero and the reference voltage or ±VREF/2. The MAX1383 offers an input voltage range of ±10V, which is ideal for industrial and motor-control applications. The input to each of the ADCs supports either a true-differential input or two single-ended inputs. The MAX1377/MAX1379/MAX1383 are available in a 20-pin TQFN package, and are specified for the automotive (-40°C to +125°C) temperature range.

Where to Buy

Prices starting from US$4.79

Distributor Stock
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Farnell
from US$8.34
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Analog Devices
from US$4.79
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Features

Dual, Simultaneous-Sampling, 12-Bit Successive Approximation Register (SAR) ADCs
2 x 2 Mux Inputs or Two Differential Inputs
1.25Msps Sampling Rate per ADC
Internal or External Reference
Excellent Dynamic Performance 70dB SINAD (MAX1377) 71dB SINAD (MAX1379/MAX1383) 84dBc/SFDR 1MHz Full-Linear Bandwidth
70dB SINAD (MAX1377)
71dB SINAD (MAX1379/MAX1383)
84dBc/SFDR
1MHz Full-Linear Bandwidth
2.7V to 3.6V Low-Power Operation (MAX1377) 50mW (Normal Operation) 6mW (Partial Power-Down) 3µW (Full Power-Down)
50mW (Normal Operation)
6mW (Partial Power-Down)
3µW (Full Power-Down)
4.75V to 5.25V Low-Power Operation (MAX1379) 90mW (Normal Operation) 10mW (Partial Power-Down) 5µW (Full Power-Down)
90mW (Normal Operation)
10mW (Partial Power-Down)
5µW (Full Power-Down)
4.75V to 5.25V Low-Power Operation (MAX1383) 280mW (Normal Operation) 2.5µW (Full Power-Down)
280mW (Normal Operation)
2.5µW (Full Power-Down)
20MHz, SPI-Compatible, 3-Wire Serial Interface User-Selectable Single (0.625Msps max) or Dual Outputs (1.25Msps max)
Input Range: ±10V (MAX1383), 0—VREF or ±VREF/2 (MAX1377/MAX1379)
Small 20-Pin TQFN Package

Specifications

Resolution (bits) (ADC) 12
# Input Channels 4
Conv. Rate (ksps) (max) 1250
Data Bus SPI
ADC Architecture SAR
Diff/S.E. Input Both
Internal VREF (V) (nominal) 2.048
External VREF (V) (min) 1
External VREF (V) (max) 3.6
Unipolar VIN (V) (max) 2.048
Bipolar VIN (±V) (max) 1.024
INL (±LSB) 1.25
Package/Pins TQFN/20
BudgetaryPrice (See Notes) 3.58


MAX1377ATP+ Data & Signal Conversion by Analog Devices

ADC 2-CH SAR 12BIT 1.25MSPS TQFN-20

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

The MAX1377/MAX1379/MAX1383 feature two simulta- neous-sampling, low-power, 12-bit ADCs with serial interface and internal voltage reference. Fast sampling rate, low power dissipation, and excellent dynamic per- formance make the MAX1377/MAX1379/MAX1383 ideal for industrial process control, motor control, and RF applications. Conversion results are available through a SPI™-/ QSPI™-/MICROWIRE™-/DSP-compatible interface with independent serial digital outputs for each channel. The serial outputs allow twice as much data to be transferred at the given clock rate. The conversion results for both ADCs can also be output on a single digital output for microcontrollers (µCs) and DSPs with only a single serial input available. The MAX1377 operates from a 2.7V to 3.6V analog sup- ply and the MAX1379/MAX1383 operate from a 4.75V to 5.25V analog supply. A separate 1.8V to AVDD digi- tal supply allows interfacing to low voltage logic without the use of level translators. Two power-down modes, partial and full, allow the MAX1377/MAX1379 and MAX1383 (full power-down only) to save power between conversions. Partial power-down mode reduces the supply current to 2mA while leaving the reference enabled for quick power-up. Full power- down mode reduces the supply current to 1µA. The MAX1377/MAX1379 inputs accept voltages between zero and the reference voltage or ±VREF/2. The MAX1383 offers an input voltage range of ±10V, which is ideal for industrial and motor-control applica- tions. The input to each of the ADCs supports either a true-differential input or two single-ended inputs. The MAX1377/MAX1379/MAX1383 are available in a 20-pin TQFN package, and are specified for the automo- tive (-40°C to +125°C) temperature range.

Specifications

Resolution (Bits) 12bit
Sampling Rate 1.25MSPS
Input Channel Type Differential
Data Interface SPI
Supply Voltage Type Single
Supply Voltage Min 2.7V
Supply Voltage Max 3.6V
ADC / DAC Case Style TQFN
No. of Pins 20Pins
Operating Temperature Min -40°C
Operating Temperature Max 125°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

Dual, 12-Bit, 1.25Msps, Simult | Analog Devices
ADC, 2-CH, SAR, 12BIT, 1.25MSPS, TQFN-20 | Farnell
Adc, 2-Ch, Sar, 12Bit, 1.25Msps, Tqfn-20 | Newark Electronics

Frequently Asked Questions

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Is the MAX1377ATP+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Analog Devices, Farnell, Newark Electronics and Avnet Silica have stock available or on a lead time for MAX1377ATP+ .

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