AD7450A
Info: : PRODUCTION
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AD7450A

Differential Input, 1 MSPS, 12- (AD7450A) & 10-Bit (AD7440) ADCs

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price Starting From $7.16
Features
  • Specified for VDD of 3 V and 5 V
  • Low power at max throughput rate
    4 mW max at 1 MSPS with 3 V supplies
    9.25 mW max at 1 MSPS with 5 V supplies
  • Fully differential analog input
  • Wide input bandwidth
    70 dB SINAD at 100 kHz input frequency
  • Fast throughput rate: 1 MSPS
  • Flexible power/serial clock speed management
  • No pipeline delays
  • High speed serial interface
    SPI/QSPI/MICROWIRE/ DSP compatible
  • Power-down mode: 1 μA max
  • 8-lead SOT-23 and MSOP packages
Additional Details
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The AD7440 / AD7450A are 10-bit and 12-bit high speed, low power, successive approximation (SAR) analog-to-digital converters with a fully differential analog input. These parts operate from a single 3 V or 5 V power supply and use advanced design techniques to achieve very low power dissipation at throughput rates up to 1 MSPS. The SAR architecture of these parts ensures that there are no pipeline delays.

The parts contain a low noise, wide bandwidth, differential track-and-hold amplifier (T/H) that can handle input frequencies up to 3.5 MHz. The reference voltage is applied externally to the VREF pin and can be varied from 100 mV to 3.5 V depending on the power supply and what suits the application. The value of the reference voltage determines the common-mode voltage range of the part. With this truly differential input structure and variable reference input, the user can select a variety of input ranges and bias points.

The conversion process and data acquisition are controlled using CS and the serial clock, allowing the device to interface with microprocessors or DSPs. The input signals are sampled on the falling edge of CS; the conversion is also initiated at this point. The SAR architecture of these parts ensures that there are no pipeline delays. The AD7440 and the AD7450A use advanced design techniques to achieve very low power dissipation at high throughput rates.

PRODUCT HIGHLIGHTS

  1. Operation with either 3 V or 5 V power supplies.
  2. High throughput with low power consumption.
    With a 3 V supply, the AD7440 / AD7450A offer 4 mW max power consumption for 1 MSPS throughput.
  3. Fully differential analog input.
  4. Flexible power/serial clock speed management.
    The conversion rate is determined by the serial clock, allowing the power to be reduced as the conversion time is reduced through the serial clock speed increase. These parts also feature a shutdown mode to maximize power efficiency at lower throughput rates.
  5. Variable voltage reference input.
  6. No pipeline delay.
  7. Accurate control of the sampling instant via a CS input and once-off conversion control.
  8. ENOB > eight bits typically with 100 mV reference.

APPLICATIONS

  • Transducer interface
  • Battery-powered systems
  • Data acquisition systems
  • Portable instrumentation
  • Motor control

MICROWIRE is a trademark of National Semiconductor Corporation. SPI and QSPI are trademarks of Motorola, Inc.

Part Models 2
1ku List Price Starting From $7.16

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
AD7450ABRMZ
  • HTML
  • HTML
AD7450ABRTZ-REEL7
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  • HTML

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Part Models

Product Lifecycle

PCN

Mar 22, 2021

- 21_0001

Addition of Amkor Philippines as an Alternate Site for Singulated MSOP and MSOP_EP

Jan 5, 2015

- 14_0246

Qualification of ASE Chungli, as an Alternate Assembly Site for Select MSOP Devices

May 15, 2012

- 10_0006

Halogen Free Material Change for mini SOIC Products

Aug 16, 2017

- 16_0291

CANCELLED: Addition of Amkor Philippines as Alternate Assembly Site for 5L, 6L and 8L SOT23 Chip-On-Lead Packages

Feb 4, 2010

- 10_0009

Halogen Free Material Change for SOT_23 Products

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Mar 22, 2021

- 21_0001

arrow down

Addition of Amkor Philippines as an Alternate Site for Singulated MSOP and MSOP_EP

Jan 5, 2015

- 14_0246

arrow down

Qualification of ASE Chungli, as an Alternate Assembly Site for Select MSOP Devices

May 15, 2012

- 10_0006

arrow down

Halogen Free Material Change for mini SOIC Products

Aug 16, 2017

- 16_0291

arrow down

CANCELLED: Addition of Amkor Philippines as Alternate Assembly Site for 5L, 6L and 8L SOT23 Chip-On-Lead Packages

Feb 4, 2010

- 10_0009

arrow down

Halogen Free Material Change for SOT_23 Products

Software & Part Ecosystem

Software & Part Ecosystem

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Evaluation Kit

Evaluation Kits 1

EVAL-AD7450A

AD7450A Evaluation Board

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EVAL-AD7450A

AD7450A Evaluation Board

AD7450A Evaluation Board

Product Detail

The EVAL-AD7450ASDZ is a fully featured evaluation kit for the AD7450. This board operates in standalone mode or in conjunction with the System Development Platform, EVAL-SDP-CB1Z . When operated with the System Development Platform software is provided enabling the user to perform detailed analysis of the ADC's performance. This software includes the technical note describing the operation and set up of the evaluation board in standalone operation or when operated with the System Development Platform . When operated in standalone mode the ADZS-BRKOUT-EX3 break out board is recommended for access to various control pins.


This board can also be used to text the AD7440 generic


The SDP Controller board is a separate list item in the ordering guide below (EVAL-SDP-CB1Z). If you have not previously purchased an SDP Controller board, please do so to ensure a full evaluation setup.

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