MAX1070, MAX1071

1.5Msps, Single-Supply, Low-Power, True-Differential, 10-Bit ADCs

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Status Explanations for product status codes

Part Number Status
MAX1070 Active: In Production. See Ordering Information for details.
MAX1071 Active: In Production. See Ordering Information for details.

Description

The MAX1070/MAX1071 low-power, high-speed, serial-output, 10-bit, analog-to-digital converters (ADCs) operate at up to 1.5Msps. These devices feature true-differential inputs, offering better noise immunity, distortion improvements, and a wider dynamic range over single-ended inputs. A standard SPI™/QSPI™/MICROWIRE™ interface provides the clock necessary for conversion. These devices easily interface with standard digital signal processor (DSP) synchronous serial interfaces.

The MAX1070/MAX1071 operate from a single +2.7V to +3.6V supply voltage and require an external reference. The MAX1070 has a unipolar analog input, while the MAX1071 has a bipolar analog input. These devices feature a partial power-down mode and a full power-down mode for use between conversions, which lower the supply current to 1mA (typ) and 1µA (max), respectively. Also featured is a separate power-supply input (VL), which allows direct interfacing to +1.8V to VDD digital logic. The fast conversion speed, low-power dissipation, excellent AC performance, and DC accuracy (±0.5 LSB INL) make the MAX1070/MAX1071 ideal for industrial process control, motor control, and base-station applications.

The MAX1070/MAX1071 come in a 12-pin TQFN package, and are available in the extended (-40°C to +85°C) temperature range.
 

Data Sheet

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Key Features

  • 1.5Msps Sampling Rate
  • Only 18mW (typ) Power Dissipation
  • Only 1µA (max) Shutdown Current
  • High-Speed, SPI-Compatible, 3-Wire Serial Interface
  • 61dB S/(N + D) at 525kHz Input Frequency
  • Internal True-Differential Track/Hold (T/H)
  • External Reference
  • No Pipeline Delays
  • Small 12-Pin TQFN Package
 

Applications/Uses

  • Bill Validation
  • Communications
  • Data Acquisition
  • Motor Control
  • Portable Instrumentation
   

Key Specifications:

Precision ADCs (< 5Msps)
Part Number Resolution
(bits)
Input Chan. Conv. Rate
(ksps)
Data Bus
(bits)
Diff/S.E. Input Internal VREF
(V)
External VREF
(V)
External VREF
(V)
Unipolar VIN
(V)
Bipolar VIN
(±V)
SNR
(dB)
SINAD
(dB)
THD
(dB)
SFDR
(dB)
DNL
(±LSB)
INL
(±LSB)
Package/Pins Budgetary Price
ADC max nominal min max max max See Notes
MAX1070  10 1 1500 SPI Diff. Only 2.048 1 3.6 2.048 1.024 60 61 -80 80 0.5 0.5
TQFN/12
$3.63 @1k
MAX1071 
TQFN/12
$3.63 @1k
See All Precision ADCs (< 5Msps) (423)
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 prices and delivery, please see the price and availability page or contact an authorized distributor.


Diagram

MAX1070, MAX1071: Typical Operating Circuit
Typical Operating Circuit

More Information

Topmark Coding MAX1070
Topmark Coding MAX1071

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Information Index

Document Ref.: 19-3292 Rev 1; 2009-08-06
This page last modified: 2009-08-06




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