MAX1032, MAX1033

8- and 4-Channel, ±3 x VREF Multirange Inputs, Serial 14-Bit ADCs

Low-Power, Multichannel ADCs with ±3 x VREF Input Range
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Active: In Production.

Description

The MAX1032/MAX1033 multirange, low-power, 14-bit, successive-approximation, analog-to-digital converters (ADCs) operate from a single +5V supply and achieve throughput rates up to 115ksps. A separate digital supply allows digital interfacing with 2.7V to 5.25V systems 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 MAX1032 provides eight (single-ended) or four (true differential) analog input channels. The MAX1033 provides four (single-ended) or two (true differential) analog input channels. Each analog input channel is independently software programmable for seven single-ended input ranges 0 to (3 × VREF)/2, (-3 × VREF)/2 to 0, 0 to 3 × VREF, -3 × VREF to 0, (±3 × VREF)/4, (±3 × VREF)/2, ±3 × VREF and three differential input ranges (±3 × VREF)/2, ±3 × VREF, ±6 × VREF.
An on-chip +4.096V reference offers a small convenient ADC solution. The MAX1032/MAX1033 also accept an external reference voltage between 3.800V and 4.136V.
The MAX1032 is available in a 24-pin TSSOP package and the MAX1033 is available in a 20-pin TSSOP package. Each device is specified for operation from -40°C to +85°C.

Data Sheet

Download this datasheet in PDF formatDownload Rev 6 (PDF, 904.9kB)
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Key Features

  • Software-Programmable Input Range for Each Channel
  • Single-Ended Input Ranges (VREF = 4.096V)
    • (0 to (3 × VREF)/2, (-3 × VREF)/2 to 0, 0 to 3 × VREF, -3 × VREF to 0, (±3 × VREF)/4, (±3 × VREF)/2, ±3 × VREF)
  • Differential Input Ranges
    • (±3 × VREF)/2, ±3 × VREF, ±6 × VREF
  • Eight Single-Ended or Four Differential Analog Inputs (MAX1032)
  • Four Single-Ended or Two Differential Analog Inputs (MAX1033)
  • ±16.5V Overvoltage Tolerant Inputs
  • Internal or External Reference
  • 115ksps Maximum Sample Rate
  • Single +5V Power Supply
  • 20-/24-Pin TSSOP Package
 

Applications/Uses

  • Avionics
  • Data Acquisition Systems
  • Industrial Control Systems
  • Robotics
   

Key Specifications:

Precision ADCs (< 5Msps)
Part Number Resolution
(bits)
Input Chan. Conv. Rate
(ksps)
ADC Architecture Data Bus Diff/S.E. Input Internal VREF
(V)
External VREF
(V)
External VREF
(V)
Unipolar VIN
(V)
Bipolar VIN
(±V)
SNR
(dB)
SINAD
(dB)
Budgetary
Price
ADC max nominal min max max max See Notes
MAX1032  14 8 115 SAR SPI Both 4.096 3.8 4.136 12.288 12.288 85 83 $7.14 @1k
MAX1033  4 $6.83 @1k
See All Precision ADCs (< 5Msps) (455)

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.



Diagram

MAX1032, MAX1033: Block Diagram
Block Diagram

More Information

New Product Press Release   2007-01-04 ]

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Key Specifications
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Notes and Comments
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Document Ref.: 19-3573 Rev 6; 2013-08-20
This page last modified: 2013-08-20