AD7666 Series

16-Bit, 500 kSPS PulSAR®Unipolar ADC with Ref

Catalog

16-Bit, 500 kSPS PulSAR®Unipolar ADC with Ref

Part	Number of Inputs	Ratio - S/H:ADC	Data Interface	Package / Case	Configuration	Reference Type	Number of Bits	Supplier Device Package	Architecture	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply, Digital	Input Type	Sampling Rate (Per Second)	Mounting Type	Number of A/D Converters	Voltage - Supply, Analog
Analog Devices AD7666ACPZ	1	1:1	DSP Parallel SPI	48-VFQFN Exposed Pad CSP	S/H-ADC	External Internal	16	48-LFCSP-VQ (7x7)	SAR	85 °C	-40 °C	5 V	Differential	500k	Surface Mount	1	5 V
Analog Devices AD7666ASTZ	1	1:1	DSP Parallel SPI	48-LQFP	S/H-ADC	External Internal	16	48-LQFP (7x7)	SAR	85 °C	-40 °C	5 V	Differential	500k	Surface Mount	1	5 V
Analog Devices AD7666ACP				48-VFQFN Exposed Pad CSP			16	48-LFCSP-VQ (7x7)		85 °C	-40 °C			500k	Surface Mount	1

Catalog

16-Bit, 500 kSPS PulSAR®Unipolar ADC with Ref

Key Features

• 2.5 V Internal Reference:Typical Drift 3 ppm/ºC Guaranteed Max Drift 15 ppm/ºC

• Throughput: 500 kSPS

• INL: ±2.5 LSB Max (±0.0038% of Full Scale)

• 16 Bits Resolution with No Missing Codes

• S/(N+D): 88 dB max @ 20 kHz

• THD: -96 dB max @ 20 kHz

• Analog Input Voltage Range: 0 V to 2.5 V

• No Pipeline Delay

• SPI®/QSPI™/MICROWIRE™/DSP Compatible

• Parallel and Serial 5 V/3 V Interface

• Single 5 V Supply Operation

• Power Dissipation:66 mW typ, 132 µW @ 1 kSPSwithout REF 81 mW typ with REF

• Package:48-Lead Quad Flat Pack (LQFP)48-Lead Chip Scale Package (LFCSP)Pin-to-Pin Compatible withPulSAR®ADCs

Description

The AD7666 is a 16-bit, 500 kSPS, charge redistribution SAR analog-to-digital converter that operates from a single 5 V power supply. The part contains a high speed, 16-bit sampling ADC, an internal conversion clock, internal reference, error correction circuits, and both serial and parallel system interface ports. The AD7666 is hardware factory-calibrated and comprehensively tested to ensure ac parameters such as signal-to-noise ratio (SNR) and total harmonic distortion (THD), in addition to the more traditional dc parameters of gain, offset, and linearity.The AD7666 is available in a 48-lead LQFP and a tiny 48-lead LFCSP, with operation specified from –40°C to +85°C.PRODUCT HIGHLIGHTSFast Throughput.The AD7666 is a 500 kSPS, charge redistribution, 16-bit SAR ADC with internal error correction circuitry.Superior INL.The AD7666 has a maximum integral nonlinearity of 2.0 LSB with no missing 16-bit codes.Internal Reference.The AD7666 has an internal reference with a typical temperature drift of 3 ppm/°C.Single-Supply Operation.The AD7666 operates from a single 5 V supply. Its power dissipation decreases with throughput.Serial or Parallel Interface.Versatile parallel or 2-wire serial interface arrangement is compatible with both 3 V and 5 V logic.APPLICATIONSData acquisitionMedical instrumentsDigital signal processingSpectrum analysisInstrumentationBattery-powered systemsProcess control