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16-Bit ADCs, 150ksps, 3.3V Single Supply

Product Details

The MAX1134/MAX1135 are 150ksps, 16-bit ADCs. These serially interfaced ADCs connect directly to SPI™, QSPI™, and MICROWIRE™ devices without external logic. They combine an input scaling network, internal track/hold (T/H), clock, and three general-purpose digital output pins (for external multiplexer or PGA control) in a 20-pin SSOP package. The excellent dynamic performance (THD>90dB), high speed (150ksps in bipolar mode), and low power (8.0mA) of these ADCs make them ideal for applications such as industrial process control, instrumentation, and medical applications.

The MAX1134 accepts input signals of 0 to +6V (unipolar) or ±6V (bipolar), while the MAX1135 accepts input signals of 0 to +2.048V (unipolar) or ±2.048V (bipolar). Operating from a single 3.135V to 3.465V analog and digital supply, power-down modes reduce current consumption to 0.15mA at 10ksps and further reduce supply current to less than 20µA at slower data rates.

A serial strobe output (SSTRB) allows direct connection to the TMS320 family digital-signal processors. The MAX1134/MAX1135 user can select either the internal clock or an external serial-interface clock for the ADC to perform analog-to-digital conversions.

The MAX1134/MAX1135 feature internal calibration circuitry to correct linearity and offset errors. On-demand calibration allows the user to optimize performance. Three user-programmable logic outputs are provided for the control of an 8-channel mux or PGA.

The MAX1134/MAX1135 are available in a 20-pin SSOP package and are fully specified over the -40°C to +85°C temperature range.

Key Features

  • 150ksps (Bipolar) and 125ksps (Unipolar) Sampling ADC
  • 16 Bits, No Missing Codes
  • 1 LSB INL (typ) Guaranteed
  • -100dB THD
  • 3.3V Single-Supply Operation
  • Low-Power Operation
    • 4.5mA (typ) (Unipolar Mode)
  • 1.2µA Shutdown Mode
  • Software-Configurable Unipolar and Bipolar Input Ranges
    • 0 to +6V and ±6V (MAX1134)
    • 0 to +2.048V and ±2.048V (MAX1135)
  • Internal or External Clock
  • SPI/QSPI/MICROWIRE TMS320-Compatible Serial Interface
  • Three User-Programmable Logic Outputs
  • Small 20-Pin SSOP Package

Applications/Uses

  • Data Acquisition
  • Industrial I/O Modules
  • Industrial Process Controls
  • Medical Instruments
  • Portable Battery-Powered Equipment
Parametric specs for Precision ADCs (≤ 5Msps)
Resolution (bits) (ADC) 16
# Input Channels 1
Conv. Rate (ksps) (max) 150
Data Bus SPI
ADC Architecture SAR
Diff/S.E. Input S.E. Only
External VREF (V) (min) 1.9
External VREF (V) (max) 2.2
Unipolar VIN (V) (max) 6
Bipolar VIN (±V) (max) 6
INL (±LSB) 1
Package/Pins SSOP/20
Budgetary
Price (See Notes)
$23.70 @1k
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Simplified Block Diagram

MAX1134, MAX1135: Typical Application Circuit MAX1134, MAX1135: Typical Application Circuit Zoom icon

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Parameters

Parametric specs for Precision ADCs (≤ 5Msps)
Resolution (bits) (ADC) 16
# Input Channels 1
Conv. Rate (ksps) (max) 150
Data Bus SPI
ADC Architecture SAR
Diff/S.E. Input S.E. Only
External VREF (V) (min) 1.9
External VREF (V) (max) 2.2
Unipolar VIN (V) (max) 6
Bipolar VIN (±V) (max) 6
INL (±LSB) 1
Package/Pins SSOP/20
Budgetary
Price (See Notes)
$23.70 @1k

Key Features

  • 150ksps (Bipolar) and 125ksps (Unipolar) Sampling ADC
  • 16 Bits, No Missing Codes
  • 1 LSB INL (typ) Guaranteed
  • -100dB THD
  • 3.3V Single-Supply Operation
  • Low-Power Operation
    • 4.5mA (typ) (Unipolar Mode)
  • 1.2µA Shutdown Mode
  • Software-Configurable Unipolar and Bipolar Input Ranges
    • 0 to +6V and ±6V (MAX1134)
    • 0 to +2.048V and ±2.048V (MAX1135)
  • Internal or External Clock
  • SPI/QSPI/MICROWIRE TMS320-Compatible Serial Interface
  • Three User-Programmable Logic Outputs
  • Small 20-Pin SSOP Package

Applications/Uses

  • Data Acquisition
  • Industrial I/O Modules
  • Industrial Process Controls
  • Medical Instruments
  • Portable Battery-Powered Equipment

Description

The MAX1134/MAX1135 are 150ksps, 16-bit ADCs. These serially interfaced ADCs connect directly to SPI™, QSPI™, and MICROWIRE™ devices without external logic. They combine an input scaling network, internal track/hold (T/H), clock, and three general-purpose digital output pins (for external multiplexer or PGA control) in a 20-pin SSOP package. The excellent dynamic performance (THD>90dB), high speed (150ksps in bipolar mode), and low power (8.0mA) of these ADCs make them ideal for applications such as industrial process control, instrumentation, and medical applications.

The MAX1134 accepts input signals of 0 to +6V (unipolar) or ±6V (bipolar), while the MAX1135 accepts input signals of 0 to +2.048V (unipolar) or ±2.048V (bipolar). Operating from a single 3.135V to 3.465V analog and digital supply, power-down modes reduce current consumption to 0.15mA at 10ksps and further reduce supply current to less than 20µA at slower data rates.

A serial strobe output (SSTRB) allows direct connection to the TMS320 family digital-signal processors. The MAX1134/MAX1135 user can select either the internal clock or an external serial-interface clock for the ADC to perform analog-to-digital conversions.

The MAX1134/MAX1135 feature internal calibration circuitry to correct linearity and offset errors. On-demand calibration allows the user to optimize performance. Three user-programmable logic outputs are provided for the control of an 8-channel mux or PGA.

The MAX1134/MAX1135 are available in a 20-pin SSOP package and are fully specified over the -40°C to +85°C temperature range.

Simplified Block Diagram

MAX1134, MAX1135: Typical Application Circuit MAX1134, MAX1135: 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.