AD7689BCPZ

High-speed conversion
6,255 有效庫存

AD7689BCPZ

有效庫存6,255

High-speed conversion

  • 製造商零件號 # : AD7689BCPZ

  • 包裝/封裝: CP-20-22

  • 製造商: Analog Devices

  • 產品分類 : Analog to Digital Converters (ADC)

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例子

捲帶式

捲帶式

剪膠帶

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管或託盤

管或託盤

AD7689BCPZ 數據表

價格 (USD)

數量 單價 總價
1 $5.675 $5.68
10 $4.941 $49.41
30 $4.494 $134.82
100 $4.118 $411.80

這些價格會受到市場波動的影響，需要提交報價才能取得最新價格。

快速報價

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詳細說明

The AD7689BCPZ are 4-channel/8-channel, 16-bit, charge redistribution successive approximation register (SAR) analog to-digital converters (ADCs) that operate from a single power supply, VDD. The AD7682/AD7689 contain all components for use in a multichannel, low power data acquisition system, including a true 16-bit SAR ADC with no missing codes; a 4-channel(AD7682) or 8-channel (AD7689), low crosstalk multiplexer useful for configuring the inputs as single ended (with or without ground sense), differential, or bipolar; an internal low drift reference (selectable 2.5 V or 4.096 V) and buffer; a temperature sensor; a selectable one-pole filter; and a sequencer that is useful when channels are continuously scanned in order.

AD7689 Pin Configuration

AD7689 Pin Configuration

Pin No. | LFCSP Mnemonic | Type   | Description
--------|-----------------|--------|---------------------------------------------------------
1       | VDD             | Power  | Power Supply
2       | REF             | AI/O   | Reference Input/Output
3       | REFIN           | AI/O   | Internal Reference Output/Reference Buffer Input
4, 5    | GND             | Power  | Power Supply Ground
6       | NC (AD7682)     | AI     | No Connection (AD7682)
        | IN4 (AD7689)    | AI     | Analog Input Channel 4 (AD7689)
7       | IN2 (AD7682)    | AI     | Analog Input Channel 2 (AD7682)
        | IN5 (AD7689)    | AI     | Analog Input Channel 5 (AD7689)
8       | NC (AD7682)     | AI     | No Connection (AD7682)
        | IN6 (AD7689)    | AI     | Analog Input Channel 6 (AD7689)
9       | IN3 (AD7682)    | AI     | Analog Input Channel 3 (AD7682)
        | IN7 (AD7689)    | AI     | Analog Input Channel 7 (AD7689)
10      | COM             | AI     | Common Channel Input
11      | CNV             | DI     | Conversion Input
12      | DIN             | DI     | Data Input
13      | SCK             | DI     | Serial Data Clock Input
14      | SDO             | DO     | Serial Data Output
15      | VIO             | Power  | Input/Output Interface Digital Power

Functional Block Diagram

Functional Block Diagram

AD7689BCPZ

主要特徵

►16-bit resolution with no missing codes
► 4-channel (AD7682)/8-channel (AD7689) multiplexer with choice of inputs
► Unipolar single-ended
► Differential (GND sense)
► Pseudobipolar
► Throughput: 250 kSPS
► INL: ±0.4 LSB typical, ±1.5 LSB maximum (±23 ppm or FSR)
► Dynamic range: 93.8 dB
► SINAD: 92.5 dB at 20 kHz
► THD: −100 dB at 20 kHz
► Analog input range: 0 V to VREF with VREF up to VDD
► Multiple reference types
► Internal selectable 2.5 V or 4.096 V
► External buffered (up to 4.096 V)
► External (up to VDD)
► Internal temperature sensor (TEMP)
► Channel sequencer, selectable 1-pole filter, busy indicator
► No pipeline delay, SAR architecture
► Single-supply 2.3 V to 5.5 V operation with 1.8 V to 5.5 V logic interface
► Serial interface compatible with SPI, MICROWIRE, QSPI, and DSP
► Power dissipation
► 3.5 mW at 2.5 V/200 kSPS
► 12.5 mW at 5 V/250 kSPS
► Standby current: 50 nA
► Low cost grade available
► 20-lead 4 mm × 4 mm LFCSP package
► 20-lead 2.4 mm × 2.4 mm WLCSP package

應用

► Multichannel system monitoring
► Battery-powered equipment
► Medical instruments: ECG/EKG
► Mobile communications: GPS
► Power line monitoring
► Data acquisition
► Seismic data acquisition systems
► Instrumentation
► Process control

Typical connection diagram

Typical connection diagram

規格

以下是所選零件的基本參數，涉及零件的特性及其所屬類別。

Pbfree Code No Rohs Code Yes
Part Life Cycle Code Active Part Package Code QFN
Pin Count ! 20 Reach Compliance Code compliant
ECCN Code EAR99 HTS Code ! 8542.39.00.01
Analog Input Voltage-Max 2.9 V Analog Input Voltage-Min 0.25 V
Conversion Time-Max 2.2 µs Converter Type ADC, SUCCESSIVE APPROXIMATION
JESD-30 Code S-XQCC-N20 JESD-609 Code e3
Length 4 mm Linearity Error-Max (EL) 0.0023%
Moisture Sensitivity Level 3 Number of Analog In Channels 8
Number of Bits 16 Number of Functions 1
Number of Terminals 20 Operating Temperature-Max 85 °C
Operating Temperature-Min -40 °C Output Bit Code BINARY, 2'S COMPLEMENT BINARY
Output Format ! SERIAL Package Body Material UNSPECIFIED
Package Code HVQCCN Package Equivalence Code LCC20,.16SQ,20
Package Shape SQUARE Package Style CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Cel) 260 Power Supplies ! 3/5 V
Qualification Status ! Not Qualified Sample Rate 0.25 MHz
Sample and Hold / Track and Hold TRACK Seated Height-Max 1 mm
Supply Voltage-Nom 5 V Surface Mount ! YES
Technology CMOS Temperature Grade ! INDUSTRIAL
Terminal Finish MATTE TIN Terminal Form ! NO LEAD
Terminal Pitch ! 0.5 mm Terminal Position QUAD
Time@Peak Reflow Temperature-Max (s) 40 Width 4 mm
Manufacturer Analog Devices Inc. Product Category ! Analog to Digital Converters - ADC
RoHS Details Series AD7689
Mounting Style SMD/SMT Package / Case LFCSP-20
Resolution 16 bit Number of Channels 8 Channel
Interface Type SPI Sampling Rate ! 250 kS/s
Input Type Differential/Pseudo-Differential/Single-Ended Architecture SAR
Analog Supply Voltage 2.3 V to 5.5 V Digital Supply Voltage 1.8 V to 5.5 V
SNR - Signal to Noise Ratio 93.5 dB Minimum Operating Temperature - 40 C
Maximum Operating Temperature ! + 85 C Brand Analog Devices
DNL - Differential Nonlinearity - 1 LSB/1.5 LSB Gain Error +/- 30 LSB
Height 0.83 mm INL - Integral Nonlinearity +/- 1.5 LSB
Input Voltage 2.5 V/4.096 V, +/- 1.25 V/+/- 2.048 V Moisture Sensitive Yes
Number of ADC Inputs 8 Input, 8 Input/4 Input, 4 Input/2 Input Number of Converters 1 Converter
Operating Supply Voltage ! 5 V Pd - Power Dissipation 19.2 mW
Power Consumption ! 15.5 mW Product Type ! ADCs - Analog to Digital Converters
Reference Type ! External, Internal Sample and Hold Yes
Factory Pack Quantity 490 Subcategory Data Converter ICs
Supply Voltage - Max 5 V Supply Voltage - Min 5 V
Type S/H ADC Unit Weight 0.600222 oz

數據表 PDF

數據表記錄了器件的特性、絕對最大額定值、應用等，這對於作為器件特定應用的整體指南大有裨益。

初步規格 AD7689BCPZ PDF 下載

常見問題解答

What is AD7689BCPZ?

The AD7689BCPZ is a 16-bit, low-power, successive approximation analog-to-digital converter (ADC) designed by Analog Devices. It is suitable for applications requiring high-resolution conversion of analog signals, such as industrial automation, instrumentation, and data acquisition systems.

How Does AD7689BCPZ Work?

The AD7689BCPZ operates by sequentially comparing the input analog voltage to a range of digital values, successively refining the conversion to achieve high-resolution digital output. It features a low-power design and a flexible serial interface, making it suitable for battery-powered and digital systems.

How Many Pins does AD7689BCPZ have and What are the Functions of the Pinout Configuration?

The AD7689BCPZ is housed in a 10-lead LFCSP (Lead Frame Chip Scale Package) package. The pinout configuration includes:

  • VDD, REF, AGND, DGND: Power and ground pins for analog and digital sections.
  • SDI, SDO, SCLK: Serial interface control pins.
  • CONVST, CS: Conversion start and chip select pins.
  • IN+: Analog input pin for single-ended measurements.
  • IN-: Inverting input pin for differential measurements.

What are the Pros and Cons of AD7689BCPZ?

Pros:

  • High Resolution: Provides 16-bit resolution for precise analog-to-digital conversion.
  • Low Power Consumption: Features low power operation, suitable for battery-powered applications.
  • Flexible Interface: Supports a serial interface for easy integration into digital systems.
  • Small Package: The 10-lead LFCSP package offers a compact footprint for space-constrained designs.

Cons:

  • Speed: May have limited conversion speed compared to lower-resolution ADCs.
  • External Components: May require external components for functions such as voltage reference and analog signal conditioning.

Are There Any Equivalents/Alternatives to AD7689BCPZ for Recommendation?

  • The LTC1867 from Linear Technology is a similar 16-bit ADC with versatile features.
  • Alternatives to the AD7689BCPZ include the MAX11100 from Maxim Integrated and the MCP3421 from Microchip Technology.

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