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ADCMP553 LTSpice Model

Category: Hardware
Product Number: ADCMP553

This question was posted 8 years ago and just wanted to see if there was any development with this. Has an LTSpice model for the ADCMP553 been created? Is there a similar alternative comparator available on LTSpice?

Older Post: ez.analog.com/.../lt-spice-model-for-adcmp553-conmparator

  • Hello,

    There was no model developed for ADCMP553 but we have available BETA models for newer parts.
    For example, ADCMP572. This is a Ultrafast comparator that is single-supply and is PECL compatible.

    See below BETA Model:


    * ADCMP573 SPICE Macro-Model Typical Values
    * Description: COMPARATOR
    * Generic Desc: Ultrafast 3.3V/5V Single Supply SiGe Comparator
    * Developed by: JAV/ADGT
    * Revision History: 6/8/2018- BETA
    * Copyright 2018 by Analog Devices, Inc.
    *
    * Refer to www.analog.com/.../ADCMP572_573.pdf
    *
    * BEGIN Notes:
    * This is a BETA Model only
    *
    * Not Modeled:
    *
    * Parameters modeled include:
    *
    * END Notes
    *
    * Node assignments
    * non-inverting input
    * | inverting input
    * | | positive supply
    * | | | negative supply
    * | | | | Latch
    * | | | | |
    * | | | | | Q
    * | | | | | | QNOT NINT INT GND
    * | | | | | | |
    .SUBCKT ADCMP573_new Vp Vtp Vn Vtn Vcci GND Latch Q QNOT Vcco
    *
    * INPUT STAGE
    *
    *
    Q1 4 3 5 PIX
    Q2 6 Vn 5 PIX
    IBIAS Vcci 5 800E-6
    RC1 4 GND 1E3
    RC2 6 GND 1E3
    CL1 4 6 3E-13
    CIN Vp Vn 3E-15
    VCM1 Vcci 7 1.9
    D1 5 7 DX
    EOS 3 Vp POLY(1) (31,98) 1E-3 1
    Rterm1 Vp Vtp 50
    Rterm2 Vn Vtn 50
    *
    * Reference Voltages
    *
    EREF 98 0 POLY(2) (Vcci,0) (GND,0) 0 0.5 0.5
    RREF 98 0 100E3
    *
    * CMRR=66dB, ZERO AT 1kHz
    *
    ECM1 30 98 POLY(2) (Vp,98) (Vn,98) 0 0.5 0.5
    RCM1 30 31 10E3
    RCM2 31 98 5
    CCM1 30 31 15.9E-12
    *
    * Latch Section
    *
    RX Latch GND 100E3
    E1 10 98 (4,6) 1
    S1 10 11 (Latch,GND) SLATCH1
    R2 11 12 1
    C3 12 98 5.4E-12
    E2 13 98 (12,98) 1
    R3 12 13 500
    *
    * Power Supply Section
    *
    GSY1 Vcci 52 POLY(1) (Vcci,GND) 4E-3 -2.6E-4
    GSY2 52 GND POLY(1) (Vcci,GND) 3.7E-3 -.6E-3
    RSY 52 GND 10
    *
    * Gain Stage Av=2GND fp=100MHz
    *
    G2 98 20 (12,98) 0.25
    R1 20 98 1000
    C1 20 98 10E-13
    E3 97 0 (Vcci,0) 1
    E4 52 0 (GND,0) 1
    V1 97 21 DC 0.8
    V2 22 52 DC 0.8
    D2 20 21 DX
    D3 22 20 DX
    *
    * Q Output
    *
    Q3 Vcco 41 46 NOX
    Q4 47 42 GND NOX
    RB1 43 41 2000
    RB2 40 42 2000
    CB1 Vcco 41 0.5E-12
    CB2 42 GND 1E-12
    RO1 46 44 1
    D4 44 Q DX
    RO2 47 Q 500
    EO1 97 43 (20,GND) 1
    EO2 40 GND (20,GND) 1
    *
    * Q NOT Output
    *
    Q5 Vcco 61 66 NOX
    Q6 67 62 GND NOX
    RB3 63 61 2000
    RB4 60 62 2000
    CB3 Vcco 61 0.5E-12
    CB4 62 GND 1E-12
    RO3 66 64 1
    D5 64 QNOT DX
    RO4 67 QNOT 500
    EO3 63 GND (20,GND) 1
    EO4 97 60 (20,GND) 1
    *
    * MODELS
    *
    .MODEL PIX PNP(BF=100,IS=1E-16)
    .MODEL NOX NPN(BF=100,VAF=130,IS=1E-14)
    .MODEL DX D(IS=1E-14)
    .MODEL SLATCH1 VSWITCH(ROFF=1E6,RON=500,VOFF=2.1,VON=1.4)
    .ENDS ADCMP573_new


    Best Regards,
    Sham