MAX1020:10-Bit, Multichannel ADCs/DACs with FIFO, Temperature Sensing, and GPIO Ports

The MAX1020/MAX1022/MAX1057/MAX1058 integrate a multichannel, 10-bit, analog-to-digital converter (ADC) and an octal, 10-bit, digital-to-analog converter (DAC) in a single IC. These devices also include a temperature sensor and configurable general-purpose I/O ports (GPIOs) with a 25MHz SPI-/QSPI™-/MICROWIRE®-compatible serial interface. The ADC is available in 8/12/16 input-channel versions. The octal DAC outputs settle within 2.0µs, and the ADC has a 225ksps conversion rate. All devices include an internal reference (2.5V or 4.096V) providing a well-regulated, low-noise reference for both the ADC and DAC. Programmable reference modes for the ADC and the DAC allow the use of an internal reference, an external reference, or a combination of both. Features such as an internal ±1°C accurate temperature sensor, FIFO, scan modes, programmable internal or external clock modes, data averaging, and AutoShutdown™ allow users to minimize both power consumption and processor requirements. The low glitch energy (4nV × s) and low digital feedthrough (0.5nV × s) of the integrated octal DACs make these devices ideal for digital control of fast-response closed-loop systems. The devices are guaranteed to operate with a supply voltage from +2.7V to +3.6V (MAX1057) and from +4.75V to +5.25V (MAX1020/MAX1022/MAX1058). The devices consume 2.5mA at 225ksps throughput, only 22µA at 1ksps throughput, and under 0.2µA in the shutdown mode. The MAX1057/MAX1058 feature 12 GPIOs, while the MAX1020 offers four GPIOs that can be configured as inputs or outputs. The MAX1057/MAX1058 are available in 48-pin thin QFN packages. The MAX1020/MAX1022 are available in 36- pin thin QFN packages. All devices are specified over the -40°C to +85°C temperature range.

Key Features
  • 10-Bit, 225ksps ADC
    • Analog Multiplexer with True-Differential Track/Hold (T/H)
    • 16 Single-Ended Channels or 8 Differential Channels (Unipolar or Bipolar) (MAX1057/MAX1058)
    • 12 Single-Ended Channels or 6 Differential Channels (Unipolar or Bipolar) (MAX1022)
    • 8 Single-Ended Channels or 4 Differential Channels (Unipolar or Bipolar) (MAX1020)
    • Excellent Accuracy: ±0.5 LSB INL, ±0.5 LSB DNL
  • 10-Bit, Octal, 2µs Settling DAC
    • Ultra-Low Glitch Energy (4nV × s)
    • Power-Up Options from Zero Scale or Full Scale
    • Excellent Accuracy: ±1 LSB INL
  • Internal Reference or External Single-Ended/Differential Reference
    • Internal Reference Voltage 2.5V or 4.096V
  • Internal ±1°C Accurate Temperature Sensor
  • On-Chip FIFO Capable of Storing 16 ADC Conversion Results and One Temperature Result
  • On-Chip Channel-Scan Mode and Internal Data-Averaging Features
  • Analog Single-Supply Operation
    • +2.7V to +3.6V or +4.75V to +5.25V
    • Digital Supply: 2.7V to VAVDD
    • 25MHz, SPI/QSPI/MICROWIRE Serial Interface
    • AutoShutdown Between Conversions
    • Low-Power ADC
    • 2.5mA at 225ksps
    • 22µA at 1ksps
    • 0.2µA at Shutdown
  • Low-Power DAC: 1.5mA
  • Evaluation Kit Available (Order MAX1258EVKIT)
MAX1020, MAX1022, MAX1057, MAX1058: Pin Configuration
MAX1020, MAX1022, MAX1057, MAX1058: Pin Configuration
Applications/Uses
  • Base-Station Control Loops
  • Controls for Optical Components
  • Data Acquisition Systems
  • System Supervision and Control
DataSheet
titleDownload file
MAX1020-MAX1058 Data SheetMAX1020-MAX1058.pdf
Parametrics
Part NumberResolution
(bits)
Input Chan.Conv. Rate
(ksps)
ADC ArchitectureData BusDiff/S.E. InputInternal VREF
(V)
External VREF
(V)
External VREF
(V)
Unipolar VIN
(V)
Bipolar VIN
(±V)
SNR
(dB)
THD
(dB)
INL
(±LSB)
Package/PinsBudgetary
Price
ADCmaxnominalminmaxmaxmaxSee Notes
MAX1020108300SARSPIBoth4.0960.75.254.0962.04861-700.5TQFN/36$11.21 @500
MAX1022124.0965.254.0962.04861TQFN/36$7.29 @1k
MAX1057162.53.62.51.2560TQFN/48-
MAX1058164.0965.254.0962.04860TQFN/48$9.65 @1k
Related Products
  • MAX11621:10-Bit, 300ksps ADCs with FIFO and Internal Reference
  • MAX1043:10-Bit, Multichannel ADCs/DACs with FIFO, Temperature Sensing, and GPIO Ports
  • MAX1040:10-Bit, Multichannel ADCs/DACs with FIFO, Temperature Sensing, and GPIO Ports
  • MAX1058:10-Bit, Multichannel ADCs/DACs with FIFO, Temperature Sensing, and GPIO Ports
  • MAX1030:10-Bit 300ksps ADCs with FIFO, Temp Sensor, Internal Reference
  • MAX1031:10-Bit 300ksps ADCs with FIFO, Temp Sensor, Internal Reference
  • MAX148:+2.7V to +5.25V Low-Power 8-Channel Serial 10-Bit ADCs
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX1020BETXNo Longer AvailableMAX1020BETX+TQFN,;36 pin;37.2 mm²-40°C to +85°CNo
MAX1020BETX+ActiveTQFN,;36 pin;37.2 mm²-40°C to +85°CLead Free
MAX1020BETX+TActiveTQFN,;36 pin;37.2 mm²-40°C to +85°CLead Free
MAX1020BETX-TNo Longer AvailableMAX1020BETX+TQFN;36 pin-40°C to +85°CSee data sheet
MAX1020-MAX1058.pdf MAX1058
MAX1020-MAX1058.pdf MAX1022