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Dual, 8-Bit, 40MHz, Current/Voltage, Simultaneous-Output DACs

Product Details

Key Features

Parametric specs for High-Speed DACs (≥ 1MHz)
Resolution (bits) 8
# Channels 2
fCLK (Msps) 40
SFDR (dBc) (@ fOUT) 70 @ 2.2MHz
THD (dBc) (@ fOUT) -68 @ 2.2MHz
DNL (±LSB) 0.25
INL (±LSB) 0.25
PDISS (mW) 20.7
Interface Parallel
VSUPPLY (V) 3
Package/Pins QSOP/28
Budgetary
Price (See Notes)
4.46
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Simplified Block Diagram

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Parameters

Parametric specs for High-Speed DACs (≥ 1MHz)
Resolution (bits) 8
# Channels 2
fCLK (Msps) 40
SFDR (dBc) (@ fOUT) 70 @ 2.2MHz
THD (dBc) (@ fOUT) -68 @ 2.2MHz
DNL (±LSB) 0.25
INL (±LSB) 0.25
PDISS (mW) 20.7
Interface Parallel
VSUPPLY (V) 3
Package/Pins QSOP/28
Budgetary
Price (See Notes)
4.46

Key Features

  • 2.7V to 3.3V Single-Supply Operation
  • Wide Spurious-Free Dynamic Range: 70dB at fOUT = 2.2MHz
  • Fully Differential Outputs for Each DAC
  • ±0.5% FSR Gain Mismatch at fOUT = 2.2MHz
  • ±0.15° Phase Mismatch at fOUT = 2.2MHz
  • Low-Current Standby or Full Shutdown Modes
  • Internal 1.2V, Low-Noise Bandgap Reference
  • Small 28-Pin QSOP Package

Applications/Uses

  • Arbitrary Waveform Generation (AWG)
  • Digital Signal Processing (DSP)
  • Imaging
  • Signal Reconstruction of I and Q
  • Transmit Signals

Description

The MAX5186 contains two 8-bit, simultaneous-update, current-output digital-to-analog converters (DACs) designed for superior performance in communications systems requiring analog signal reconstruction with low distortion and low-power operation. The MAX5189 provides equal specifications, with on-chip precision resistors for voltage output operation. The MAX5186/ MAX5189 are designed for a 10pV-s glitch operation to minimize unwanted spurious signal components at the output. An on-board 1.2V bandgap circuit provides a well-regulated, low-noise reference that can be disabled for external reference operation.

The MAX5186/MAX5189 are designed to provide a high level of signal integrity for the least amount of power dissipation. Both DACs operate from a single supply voltage of 2.7V to 3.3V. Additionally, these DACs have three modes of operation: normal, low-power standby, and complete shutdown, which provides the lowest possible power dissipation with a 1µA (max) shutdown current. A fast wake-up time (0.5µs) from standby mode to full DAC operation allows power conservation by activating the DACs only when required.

The MAX5186/MAX5189 are packaged in a 28-pin QSOP and are specified for the extended (-40°C to +85°C) temperature range. For higher resolution, dual 10-bit versions, refer to the MAX5180/MAX5183 data sheet.

Simplified Block Diagram

MAX5186, MAX5189: Functional Diagram MAX5186, MAX5189: Functional Diagram 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 .