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Maxim产品 - MAX1143介绍

MAX1143 - 14位ADC，200ksps、+5V单电源供电，内置电压基准

MAX1143是Maxim美信半导体公司的一款数据转换器和采样-保持电路产品，MAX1143是14位ADC，200ksps、+5V单电源供电，内置电压基准，本站介绍了MAX1143的封装应用图解、特点和优点、功能等，并给出了与MAX1143相关的Maxim元器件型号供参考。

MAX1143 - 14位ADC，200ksps、+5V单电源供电，内置电压基准 - 数据转换器和采样-保持电路 - Maxim美信半导体高性能芯片品质 - 美信半导体

产品概述

The MAX1142/MAX1143 are 200ksps, 14-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, a clock, +4.096V reference, and three general-purpose digital output pins (for external multiplexer or PGA control) in a 20-pin SSOP package. The excellent dynamic performance (SINAD > 81dB), high-speed (200ksps), and low power (7.5mA) of these ADCs, make them ideal for applications such as industrial process control, instrumentation, and medical applications. The MAX1142 accepts input signals of 0 to +12V (unipolar) or ±12V (bipolar), while the MAX1143 accepts input signals of 0 to +4.096V (unipolar) or ±4.096V (bipolar). Operating from a single +4.75V to +5.25V analog supply and a +4.75V to +5.25V digital supply, power-down modes reduce current consumption to 1mA 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 of digital signal processors. The MAX1142/MAX1143 user can select either the internal clock, or an external serial-interface clock for the ADC to perform analog-to-digital conversions.

The MAX1142/MAX1143 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 a PGA.

关键特性
  • 以下关键特性由Maxim美信半导体提供：
  • 200ksps (bipolar) and 150ksps (unipolar) Sampling ADC
  • 14-Bits, No Missing Codes
  • 1LSB INL Guaranteed
  • 81dB (min) SINAD
  • +5V Single-Supply Operation
  • Low Power Operation, 7.5mA (Unipolar Mode)
  • 2.5µA Shutdown Mode
  • Software-Configurable Unipolar & Bipolar Input Ranges
  • 0 to +12V and ±12V (MAX1142)
  • 0 to +4.096V and ±4.096V (MAX1143)
  • Internal or External Reference
  • Internal or External Clock
  • SPI/QSPI/MICROWIRE-Compatible Wire Serial Interface
  • Three User-Programmable Logic Outputs
  • Small 20-Pin SSOP Package
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