AD7864
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AD7864

High Speed, Low Power, 4-channel Simultaneous Sampling, 12-Bit ADC

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Info: : PRODUCTION tooltip
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Part Details
Part Models 6
1ku List Price Starting From $23.66
Features
  • High speed (1.65 μs) 12-bit ADC
  • 4 simultaneously sampled inputs
  • 4 track-and-hold amplifiers
    0.35 μs track-and-hold acquisition time
    1.65 μs conversion time per channel
  • HW/SW select of channel sequence for conversion
  • Single-supply operation
  • Selection of input ranges
    ±10 V, ±5 V for AD7864-1
    ±2.5 V for AD7864-3 0 V to 2.5 V, 0 V to 5 V for AD7864-2
  • High speed parallel interface that allows
    Interfacing to 3 V processors
  • See data sheet for additional features
Additional Details
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The AD7864 is a high speed, low power, 4-channel, simulta-neous sampling 12-bit analog-to-digital converter (ADC) that operates from a single 5 V supply. The part contains a 1.65 μs successive approximation ADC, four track-and-hold amplifiers, a 2.5 V reference, an on-chip clock oscillator, signal conditioning circuitry, and a high speed parallel interface. The input signals on four channels sample simultaneously preserving the relative phase information of the signals on the four analog inputs. The part accepts analog input ranges of ±10 V, ±5 V (AD7864-1), 0 V to +2.5 V, 0 V to +5 V (AD7864-2), and ±2.5 V (AD7864-3).

Any subset of the four channels can be converted to maximize the throughput rate on the selected sequence. Select the channels to convert via hardware (channel select input pins) or software (programming the channel select register).

A single conversion start signal (CONVST) simultaneously places all the track-and-holds into hold and initiates a conversion sequence for the selected channels. The EOC signal indicates the end of each individual conversion in the selected conversion sequence. The BUSY signal indicates the end of the conversion sequence.

Data is read from the part by a 12-bit parallel data bus using the standard CS and RD signals. Maximum throughput for a single channel is 500 kSPS. For all four channels, the maximum throughput is 130 kSPS for the read-during-conversion sequence operation. The throughput rate for the read-after-conversion sequence operation depends on the read cycle time of the processor. See the Timing and Control section. The AD7864 is available in a small (0.3 square inch area) 44-lead MQFP.

Part Models 6
1ku List Price Starting From $23.66

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Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
AD7864ASZ-1
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AD7864ASZ-1REEL
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AD7864ASZ-2
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AD7864ASZ-3
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AD7864BSZ-1
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Product Lifecycle

PCN

Dec 7, 2016

- 16_0033

Assembly Relocation to Stats ChipPAC Jiangyin and Test Transfer to Stats ChipPAC Singapore of Select QFP Products

AD7864ASZ-1

PRODUCTION

AD7864ASZ-1REEL

PRODUCTION

AD7864ASZ-2

PRODUCTION

AD7864ASZ-3

PRODUCTION

AD7864BSZ-1

PRODUCTION

AD7864BSZ-1REEL

PRODUCTION

Aug 19, 2009

- 07_0024

Package Material Changes for SOT23, MiniSO, MQFP, PDIP, PLCC, SOIC (narrow and wide body), SSOP, TSSOP and TSSOP exposed pad

AD7864ASZ-1

PRODUCTION

AD7864ASZ-1REEL

PRODUCTION

AD7864ASZ-2

PRODUCTION

AD7864ASZ-3

PRODUCTION

AD7864BSZ-1

PRODUCTION

AD7864BSZ-1REEL

PRODUCTION

Jan 5, 2009

- 07_0077

Certification of STATSChipPAC Shanghai, China and AMKOR Philippines as additional sources for Assembly & Test of QFP Packages

AD7864ASZ-1

PRODUCTION

AD7864ASZ-1REEL

PRODUCTION

AD7864ASZ-2

PRODUCTION

AD7864ASZ-3

PRODUCTION

AD7864BSZ-1

PRODUCTION

AD7864BSZ-1REEL

PRODUCTION

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Dec 7, 2016

- 16_0033

arrow down

Assembly Relocation to Stats ChipPAC Jiangyin and Test Transfer to Stats ChipPAC Singapore of Select QFP Products

AD7864ASZ-1

PRODUCTION

AD7864ASZ-1REEL

PRODUCTION

AD7864ASZ-2

PRODUCTION

AD7864ASZ-3

PRODUCTION

AD7864BSZ-1

PRODUCTION

AD7864BSZ-1REEL

PRODUCTION

Aug 19, 2009

- 07_0024

arrow down

Package Material Changes for SOT23, MiniSO, MQFP, PDIP, PLCC, SOIC (narrow and wide body), SSOP, TSSOP and TSSOP exposed pad

AD7864ASZ-1

PRODUCTION

AD7864ASZ-1REEL

PRODUCTION

AD7864ASZ-2

PRODUCTION

AD7864ASZ-3

PRODUCTION

AD7864BSZ-1

PRODUCTION

AD7864BSZ-1REEL

PRODUCTION

Jan 5, 2009

- 07_0077

arrow down

Certification of STATSChipPAC Shanghai, China and AMKOR Philippines as additional sources for Assembly & Test of QFP Packages

AD7864ASZ-1

PRODUCTION

AD7864ASZ-1REEL

PRODUCTION

AD7864ASZ-2

PRODUCTION

AD7864ASZ-3

PRODUCTION

AD7864BSZ-1

PRODUCTION

AD7864BSZ-1REEL

PRODUCTION

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