MAX1302

8-Channel, ±VREF Multirange Inputs, Serial 16-Bit ADC


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Description

The MAX1302 multirange, low-power, 16-bit, successive-approximation, analog-to-digital converter (ADC) operates from a single +5V supply and achieves throughput rates up to 115ksps. A separate digital supply allows digital interfacing with a 2.7V to 5.25V system using the SPI-/QSPI™-/MICROWIRE®-compatible serial interface. Partial power-down mode reduces the supply current to 1.3mA (typ). Full power-down mode reduces the power-supply current to 1µA (typ).

The MAX1302 provides eight (single-ended) or four (true differential) analog input channels. Each analog input channel is independently software programmable for seven single-ended input ranges (0V to +VREF/2, -VREF/2 to 0V, 0V to +VREF, -VREF to 0V, ±VREF/4, ±VREF/2, and ±VREF), and three differential input ranges (±VREF/2, ±VREF, ±2 x VREF). An on-chip +4.096V reference offers a small convenient ADC solution. The MAX1302 also accepts an external reference voltage between 3.800V and 4.136V.

The MAX1302 is available in a 24-pin TSSOP package and is specified for operation from -40°C to +85°C.

MAX1302: Typical Application Circuit MAX1302: Typical Application Circuit Enlarge+

Key Features

  • Software-Programmable Input Range for Each Channel
  • Single-Ended Input Ranges
    • 0V to +VREF/2, -VREF/2 to 0V, 0V to +VREF, -VREF to 0V, ±VREF/4, ±VREF/2, and ±VREF
  • Differential Input Ranges
    • ±VREF/2, ±VREF, and ±2 x VREF
  • Eight Single-Ended or Four Differential Analog Inputs
  • ±6V Overvoltage Tolerant Inputs
  • Internal or External Reference
  • 115ksps Maximum Sample Rate
  • Single +5V Power Supply
  • 24-Pin TSSOP Package

Applications/Uses

  • Avionics
  • Data-Acquisition Systems
  • Industrial Control Systems
  • Robotics
Part NumberResolution
(bits)
Input Chan.Conv. Rate
(ksps)
ADC ArchitectureData BusDiff/S.E. InputInternal VREF
(V)
External VREF
(V)
External VREF
(V)
Unipolar VIN
(V)
Bipolar VIN
(±V)
SNR
(dB)
THD
(dB)
INL
(±LSB)
Package/PinsBudgetary
Price
ADCmaxnominalminmaxmaxmaxSee Notes
MAX1302 16
4
8
115SARSPIBoth4.0963.84.1364.0968.19290-981
TSSOP/24
$9.99 @500
See All Precision ADCs (< 5Msps) (464)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

CAD Symbols and Footprints

  • MAX13020ASA+
  • MAX13020ASA+T
  • MAX13021ASA+
  • MAX13021ASA+T
  • MAX13021ASA/V+
  • MAX13021ASA/V+T
  • MAX1302AEUG+
  • MAX1302AEUG+T
  • MAX1302BEUG+
  • MAX1302BEUG+T
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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