AD7911
Info: : PRODUCTION
searchIcon
cartIcon

AD7911

2-Channel, 2.35 V to 5.25 V, 250 kSPS, 10-Bit A/D Converter

Show More showmore-icon

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 5
1ku List Price Starting From $2.70
Features
  • Throughput Rate: 250 kSPS
  • Specified for VDD of 2.35 V to 5.25 V
  • Low Power: 4 mW typ at 250 kSPS with 3 V Supplies 13.5 mW typ at 250 kSPS with 5 V Supplies
  • No Pipeline Delays
  • Flexible Power/Serial Clock Speed Management
  • High Speed Serial Interface SPI®/QSPI/MICROWIRE/DSP Compatible
  • Standby Mode: 1 µA max
  • 8-Lead TSOT Package
  • See data sheet for additional features
Additional Details
show more Icon

The AD7911 / AD7921 are 10-bit and 12-bit, high speed, low power, 2-channel, successive-approximation ADCs respectively. The parts operate from a single 2.35 V to 5.25 V power supply and feature throughput rates up to 250 kSPS. The parts contain a low-noise, wide bandwidth track/hold amplifier, which can handle input frequencies in excess of 6 MHz. The conversion process and data acquisition are controlled using CS and the serial clock, allowing the devices to interface with microprocessors or DSPs. The input signal is sampled on the falling edge of CS and the conversion is also initiated at this point. There are no pipeline delays associated with the part.

The channel to be converted is selected through the DIN pin and the mode of operation is controlled by CS. The serial data stream from the DOUT pin has a channel identifier bit, which provides information about the converted channel.

The AD7911 / AD7921 use advanced design techniques to achieve very low power dissipation at high throughput rates.

The reference for the part is taken internally from VDD. This allows the widest dynamic input range to the ADC. Thus the analog input range for the part is 0 to VDD. The conversion rate is determined by the SCLK signal.

PRODUCT HIGHLIGHTS

  1. 2-channel, 250 kSPS, 10-/12-bit ADCs in TSOT package.
  2. Low power consumption.
  3. Flexible power/serial clock speed management. The conversion rate is determined by the serial clock; conversion time is reduced when the serial clock speed is increased. The parts also feature a power-down mode to maximize power efficiency at lower throughput rates. Average power consumption is reduced when the power-down mode is used while not converting. Current consumption is 1 μA maximum and 50 nA typically when in power-down mode.
  4. Reference derived from the power supply.
  5. No pipeline delay.
    The parts feature a standard successive approximation ADC with accurate control of the sampling instant via a CS input and once-off conversion control.

APPLICATIONS

  • Battery-powered systems:
    Personal digital assistants
    Medical instruments
    Mobile communications
  • Instrumentation and control systems
  • Data acquisition systems
  • High speed modems
  • Optical sensors
Part Models 5
1ku List Price Starting From $2.70

close icon
Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
AD7911ARMZ
  • HTML
  • HTML
AD7911ARMZ-REEL
  • HTML
  • HTML
AD7911ARMZ-REEL7
  • HTML
  • HTML
AD7911AUJZ-R2
  • HTML
  • HTML
AD7911AUJZ-REEL7
  • HTML
  • HTML

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Jan 5, 2015

- 14_0246

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

AD7911ARMZ

PRODUCTION

AD7911ARMZ-REEL

PRODUCTION

AD7911ARMZ-REEL7

PRODUCTION

May 15, 2012

- 10_0006

Halogen Free Material Change for mini SOIC Products

AD7911ARMZ

PRODUCTION

AD7911ARMZ-REEL

PRODUCTION

AD7911ARMZ-REEL7

PRODUCTION

Feb 8, 2010

- 04_0080

Qualification of the 8" C6 and Q Wafer Fab Processes at Analog Devices, Limerick, Ireland.

AD7911ARMZ

PRODUCTION

AD7911ARMZ-REEL

PRODUCTION

AD7911ARMZ-REEL7

PRODUCTION

AD7911AUJZ-R2

PRODUCTION

AD7911AUJZ-REEL7

PRODUCTION

Apr 16, 2018

- 16_0288

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

Jan 26, 2010

- 10_0007

Halogen Free Material Change for TSOT Products

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Jan 5, 2015

- 14_0246

arrow down

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

AD7911ARMZ

PRODUCTION

AD7911ARMZ-REEL

PRODUCTION

AD7911ARMZ-REEL7

PRODUCTION

May 15, 2012

- 10_0006

arrow down

Halogen Free Material Change for mini SOIC Products

AD7911ARMZ

PRODUCTION

AD7911ARMZ-REEL

PRODUCTION

AD7911ARMZ-REEL7

PRODUCTION

Feb 8, 2010

- 04_0080

arrow down

Qualification of the 8" C6 and Q Wafer Fab Processes at Analog Devices, Limerick, Ireland.

AD7911ARMZ

PRODUCTION

AD7911ARMZ-REEL

PRODUCTION

AD7911ARMZ-REEL7

PRODUCTION

AD7911AUJZ-R2

PRODUCTION

AD7911AUJZ-REEL7

PRODUCTION

Apr 16, 2018

- 16_0288

arrow down

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

Jan 26, 2010

- 10_0007

arrow down

Halogen Free Material Change for TSOT Products

Software & Part Ecosystem

Software & Part Ecosystem

Can't find the software or driver you need?

Request a Driver/Software

Recently Viewed