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14-Bit, 135ksps, Single-Supply ADCs with Bipolar Analog Input Range

Product Details

The MAX1157/MAX1159/MAX1175 14-bit, low-power, successive-approximation analog-to-digital converters (ADCs) feature automatic power-down, a factory-trimmed internal clock, and a 14-bit wide parallel interface. The devices operate from a single +4.75V to +5.25V analog supply and feature a separate digital supply input for direct interface with +2.7V to +5.25V digital logic.

The MAX1157 accepts an analog input voltage range from 0 to +10V while the MAX1159 accepts a bipolar analog input voltage range of ±10V. The MAX1175 accepts a bipolar analog input voltage range of ±5V. All devices consume only 23mW at a sampling rate of 135ksps when using an external reference and 29mW when using the internal +4.096V reference. AutoShutdown™ reduces supply current to 0.4mA at 10ksps. The MAX1157/MAX1159/MAX1175 are ideal for high-performance, battery-powered data-acquisition applications. Excellent AC performance (THD = -100dB) and DC accuracy (±1 LSB INL) make the MAX1157/ MAX1159/MAX1175 ideal for industrial process control, instrumentation, and medical applications.

The MAX1157/MAX1159/MAX1175 are available in a 28-pin TSSOP package and are fully specified over the -40°C to +85°C extended temperature range and the 0°C to +70°C commercial temperature range.

Key Features

  • Analog Input Voltage Range ±10V, ±5V, or 0 to 10V
  • 14-Bit Wide Parallel Interface
  • Single +4.75V to +5.25V Analog Supply Voltage
  • Interfaces with +2.7V to +5.25V Digital Logic
  • ±1 LSB INL (max)
  • ±1 LSB DNL (max)
  • Low Supply Current (MAX1159)
    • 5.3mA (External Reference)
    • 6.2mA (Internal Reference)
    • 5µA AutoShutdown Mode
  • Small Footprint
    • 28-Pin TSSOP Package

Applications/Uses

  • Data Acquisition Systems
  • I/O Modules
  • Industrial Process Controls
  • Precision Instrumentation
  • Temperature Sensing and Monitoring
Parametric specs for Precision ADCs (< 5Msps)
Resolution (bits) (ADC) 14
# Input Channels 1
Conv. Rate (ksps) (max) 135
Data Bus µP/14
ADC Architecture SAR
Diff/S.E. Input S.E. Only
Internal VREF (V) (nominal) 4.096
External VREF (V) (min) 3.8
External VREF (V) (max) 4.2
Unipolar VIN (V) (max) 10
INL (±LSB) 1
Package/Pins TSSOP/28
Budgetary
Price (See Notes)
$5.97 @1k
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Simplified Block Diagram

MAX1157, MAX1159, MAX1175: Typical Application Circuit MAX1157, MAX1159, MAX1175: Typical Application Circuit Zoom icon

Technical Docs

Design & Development

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Description

The MAX1179 evaluation kit (EV kit) is an assembled and tested circuit board that demonstrates the MAX1179 analog-to-digital converter. The EV kit can also be used to evaluate other Maxim devices in the same chip family. See Table 2 for more information. Free samples of alternate devices can be requested when ordering the MAX1179 EV kit.

View Details

Features

  • Proven PC Board Layout
  • Convenient On-Board Test Points
  • Fully Assembled and Tested

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Parameters

Parametric specs for Precision ADCs (<u><</u> 5Msps)
Resolution (bits) (ADC) 14
# Input Channels 1
Conv. Rate (ksps) (max) 135
Data Bus µP/14
ADC Architecture SAR
Diff/S.E. Input S.E. Only
Internal VREF (V) (nominal) 4.096
External VREF (V) (min) 3.8
External VREF (V) (max) 4.2
Unipolar VIN (V) (max) 10
INL (±LSB) 1
Package/Pins TSSOP/28
Budgetary
Price (See Notes)
$5.97 @1k

Key Features

  • Analog Input Voltage Range ±10V, ±5V, or 0 to 10V
  • 14-Bit Wide Parallel Interface
  • Single +4.75V to +5.25V Analog Supply Voltage
  • Interfaces with +2.7V to +5.25V Digital Logic
  • ±1 LSB INL (max)
  • ±1 LSB DNL (max)
  • Low Supply Current (MAX1159)
    • 5.3mA (External Reference)
    • 6.2mA (Internal Reference)
    • 5µA AutoShutdown Mode
  • Small Footprint
    • 28-Pin TSSOP Package

Applications/Uses

  • Data Acquisition Systems
  • I/O Modules
  • Industrial Process Controls
  • Precision Instrumentation
  • Temperature Sensing and Monitoring

Description

The MAX1157/MAX1159/MAX1175 14-bit, low-power, successive-approximation analog-to-digital converters (ADCs) feature automatic power-down, a factory-trimmed internal clock, and a 14-bit wide parallel interface. The devices operate from a single +4.75V to +5.25V analog supply and feature a separate digital supply input for direct interface with +2.7V to +5.25V digital logic.

The MAX1157 accepts an analog input voltage range from 0 to +10V while the MAX1159 accepts a bipolar analog input voltage range of ±10V. The MAX1175 accepts a bipolar analog input voltage range of ±5V. All devices consume only 23mW at a sampling rate of 135ksps when using an external reference and 29mW when using the internal +4.096V reference. AutoShutdown™ reduces supply current to 0.4mA at 10ksps. The MAX1157/MAX1159/MAX1175 are ideal for high-performance, battery-powered data-acquisition applications. Excellent AC performance (THD = -100dB) and DC accuracy (±1 LSB INL) make the MAX1157/ MAX1159/MAX1175 ideal for industrial process control, instrumentation, and medical applications.

The MAX1157/MAX1159/MAX1175 are available in a 28-pin TSSOP package and are fully specified over the -40°C to +85°C extended temperature range and the 0°C to +70°C commercial temperature range.

Simplified Block Diagram

MAX1157, MAX1159, MAX1175: Typical Application Circuit MAX1157, MAX1159, MAX1175: Typical Application Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal