• 參數(shù)資料
    型號: ALD2321
    廠商: Advanced Linear Devices, Inc.
    英文描述: ULTRA LOW VOS EPAD DUAL CMOS ANALOG VOLTAGE COMPARATOR
    中文描述: 超低VOS的EPAD雙通道CMOS模擬電壓比較器
    文件頁數(shù): 1/8頁
    文件大?。?/td> 61K
    代理商: ALD2321
    ULTRA LOW VOS EPAD
    DUAL CMOS ANALOG VOLTAGE COMPARATOR
    ALD2321A/ALD2321B
    ALD2321
    A
    DVANCED
    L
    INEAR
    D
    EVICES,
    I
    NC.
    ORDERING INFORMATION
    PIN CONFIGURATION
    * Contact factory for industrial temperature range
    2004 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, California 94089 -1706 Tel: (408) 747-1155 Fax: (408) 747-1286 http://www.aldinc.com
    *N/C pins are connected internally. Do not connect externally.
    APPLICATIONS
    * Low level signal detector
    * Dual limit window comparator
    * Power supply voltage monitor
    * Photo-detector sensor circuit
    * Relay or LED driver
    * Oscillators
    * Battery operated instruments
    * Remote signal detection
    Operating Temperature Range*
    0
    °
    C to +70
    °
    C 0
    °
    C to +70
    °
    C -55
    °
    C to +125
    °
    C
    16-pin
    Small Outline Package Plastic DIP Package Ceramic DIP Package
    (SOIC)
    (PDIP) (CDIP)
    16-Pin 16-Pin
    ALD2321ASC ALD2321APC ALD2321ADC
    ALD2321BSC ALD2321BPC ALD2321BDC
    ALD2321SC ALD2321PC ALD2321DC
    GENERAL DESCRIPTION
    The ALD2321A/ ALD2321B/ ALD2321 is a monolithic Precision Dual
    Voltage Comparator, each having integrated dual complementary
    output drivers. It is constructed using advanced silicon gate CMOS
    technology. Key features of the ALD2321A/ ALD2321B/ ALD2321
    include very high input impedance, very low offset voltage utilizing on-
    chip e-trim (EPAD
    electronic-trimming) technology, flexible multiple
    output configurations and fast response time with small overdrive
    voltage. It is designed for ultra low level signal detection from high
    impedance sources. For many applications the ALD2321A/ ALD2321B/
    ALD2321 can eliminate an input amplification stage, a precision input
    bias stage, a signal level shift stage and an output buffer stage, and do
    the entire job from low level input signal detection to high output driver
    ---- all on a single chip.
    The input voltage includes ground, making this voltage comparator ideal
    for single supply +5V or dual supply +/- 5V powered systems. For dual
    supply applications, GND pin is connected to the most negative supply
    instead of Ground (0.0V). The negative supply voltage can be at any
    value between 0.0V and -5V. Each voltage comparator is individually
    trimmed at the factory for minimum offset voltage at ground voltage
    potential, making the ALD2321A/ ALD2321B/ ALD2321 at its best offset
    voltage and ready to compare very low signal level voltages at or near
    ground potential. Typically a signal less than 1 mV can be resolved and
    detected reliably without requiring amplification. Sensor or detector
    signals with signal power as low as 0.004 pW(4 x 10
    -15
    Watt) can be
    readily detected.
    Each voltage comparator has two complementary output pins, one for
    Source Output (OUT
    H
    )and the other for Sink Output (OUT). This dual
    complementary output allows maximum circuit design flexibility. The
    outputs can be used as Single-Ended Driver, Multiple WIRED-OR
    Outputs, Push-Pull Outputs or Complementary Outputs. The Sink
    Output can be used as an open drain output, which has current sink
    capability of up to 50 mA. It can also be connected to an external voltage
    higher or lower than V+, which provide level shift of the output swing
    levels from other than V+ to GND.
    PRODUCT FEATURES
    * Ultra low signal power of 4 fW detectable
    * Ultra low offset voltage of max. 0.2 mV
    * Ultra low input bias currents of typ. 0.01pA
    * Low supply current of 110
    μ
    A typical
    * Virtually eliminates source impedance effects
    * Low operating supply voltage of 3V to 10V
    * Single +5V and dual supply
    ±
    5V operation
    * High speed for both small and large level
    signals 300ns typical for TTL inputs
    * CMOS, NMOS and TTL compatible
    * Each comparator has separate push and pull
    outputs
    * High output sink current - typically 50mA
    * Low supply current spikes
    * Fanout of 30 TTL loads
    V
    +
    1
    2
    3
    14
    15
    16
    4
    13
    5
    12
    N/C
    *
    6
    7
    8
    10
    11
    OUT
    1H
    -IN
    1
    OUT
    1
    VE
    11
    N/C
    *
    VE
    12
    9
    VE
    22
    VE
    21
    OUT
    2H
    OUT
    2
    DC, PC, SC PACKAGE
    -IN
    2
    +IN
    2
    +IN
    1
    GND
    *
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