AD7665 16-Bit 570 kSPS Bipolar PulSAR® ADC

Based on the Pulsar core, the AD7665 is a 16-bit, 570 kSPS, charge redistribution SAR, Analog-to-Digital Converter that operates from a single 5 V power supply. It contains a high-speed 16-Bit sampling ADC, a resistor input scalar, which allows various input ranges, an internal conversion clock, error correction circuits, and both serial and parallel system interface ports. The AD7665 is hardware factory calibrated and is comprehensively tested to ensure such ac parameters as signal-to-noise ratio (SNR) and total harmonic distortion (THD), in addition to the more traditional dc parameters of gain, offset, and linearity.

It features a very high sampling rate mode (Warp) and, for asynchronous conversion rate applications, a fast mode (Nor-mal) and, for low power applications, a reduced power mode (Impulse) where the power is scaled with the throughput. It is fabricated using Analog Devices’ high-performance, 0.6 micron CMOS process and is available in a 48-lead LQFP with operation specified from -40°C to +85°C.

APPLICATIONS

Features and Benefits
  • Throughput
    570 kSPS (Warp Mode)
    500 kSPS (Normal Mode)
  • INL: ±2.5 LSB Max (± 0.0038% of Full Scale)
  • 16-Bit Resolution with No Missing Codes
  • S/(N+D): 90 dB Typ @ 180 kHz
  • THD: –100 dB Typ @ 180 kHz
    Analog Input Voltage Ranges
    Bipolar: ±10 V, ±5 V, ±2.5 V
    Unipolar: 0 V to 10 V, 0 V to 5 V, 0 V to 2.5 V
  • Both AC and DC Specifications
  • No Pipeline Delay
  • Parallel (8/16 Bits) and Serial 5 V/3 V Interface
  • SPI®/QSPI™/MICROWIRE™/DSP
    Compatible
  • Single 5 V Supply Operation
  • Power Dissipation
    64 mW Typical
    15 µW @ 100 SPS
Analog to Digital Converters
Data Sheets
Documentnote
AD7665: 16-Bit, 570 kSPS CMOS ADC Data Sheet (Rev. C)PDF 612 kB
Application Notes
Documentnote
AN-931: Understanding PulSAR ADC Support Circuitry (Rev. 0)PDF 299 kB
AN-347: Shielding and GuardingPDF 688 kB
AN-932: Power Supply Sequencing (Rev. 0)PDF 95 kB
AN-101: Cross Plot Generator Allows Quick A/D Converter EvaluationPDF 280 kB
AN-594: Modifying the Input Voltage Range of the AD7663, AD7665 or AD7671 PulSAR 16-Bit ADCs (Rev. A)
PulSAR® Input Range Software		PDF 141 kB
Product Highlight
Documentnote
8- to 18-Bit SAR ADCs ... From the Leader in High Performance AnalogPDF 1885 kB
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
AD7665ACPZ Production48 ld LFCSP 7x7mm (5.1EP)OTH 260-40 to 85C21.2619.23Y
AD7665ACPZRL Last Time Buy48 ld LFCSP 7x7mm (5.1EP)REEL 2500-40 to 85C019.23Y
AD7665ASTZ Production48 ld LQFPOTH 250-40 to 85C21.2619.23Y
AD7665ASTZRL Production48 ld LQFPREEL 2000-40 to 85C019.23Y
Evaluation Boards
Part NumberDescriptionPriceRoHS
EVAL-CED1ZEvaluation Controller Board249Y
Reference Materials
AD7665: 16-Bit, 570 kSPS CMOS ADC Data Sheet (Rev. C) ad7665
AN-931: Understanding PulSAR ADC Support Circuitry (Rev. 0) ad7476
AN-347: Shielding and Guarding ad677
AN-932: 电源时序控制 (Rev. 0) ad7628
AN-101: 交会图发生器加快模数转换器评估 (Rev. 0) ad677
AN-931: 了解PulSAR ADC支持电路 (Rev. 0) ad7476
AN-932: Power Supply Sequencing (Rev. 0) ad7660
AN-594: 将(几乎)任何输入电压范围用于AD7671、AD7665或AD7663 PulSAR 16位ADC (Rev. A) ad7663
AN-101: Cross Plot Generator Allows Quick A/D Converter Evaluation ad677
AN-594: Modifying the Input Voltage Range of the AD7663, AD7665 or AD7671 PulSAR 16-Bit ADCs (Rev. A) ad7663
PulSAR® Input Range Software ad7663
8- to 18-Bit SAR ADCs ... From the Leader in High Performance Analog ad7893
MS-2210：高速ADC的电源设计 ad9861
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