TSM921/TSM922/TSM923/TSM924: ULTRA LOW-POWER SINGLE/DUAL-SUPPLY COMPARATORS

TYPICAL APPLICATION CIRCUIT

APPLICATIONS

  • Threshold Detectors/Discriminators
  • Oscillator Circuits
  • Window Comparators
  • Level Translators
  • Battery-Powered Systems

KEY SPECIFICATIONS

  • Second Source for MAX921-MAX924
  • Ultra-Low Quiescent Current Over Temperature
    • TSM921/TSM922: 4μA (total)
    • TSM923/TSM924: <2.2μA per comparator
  • Single or Dual Power Supplies:
    • Single: +2.5V to +11V
    • Dual: ±1.25V to ±5.5V
  • Internal 1.182V ±1% Reference:
    • TSM921/TSM923/TSM924
  • Adjustable Hysteresis: TSM921/TSM923
  • 12μs Propagation Delay at 10mV Overdrive
  • Push-pull TTL/CMOS-Compatible Outputs
  • Crowbar-Current-Free Switching
  • Continuous Source Current Capability: 40mA

Check Price and Availability

KEY SPECIFICATIONS – TSM921/922/923/924

Part Number Comp./
Package
VCC
(min)
VCC
(max)
lCC
(max)
Internal Reference Output Stage VOS
(max)
tPD+/tPD-
(typ)
Order Free Samples
TSM921 1 2.5V 11V 4 µA Yes Push-Pull 10 mV 12 µs Request Here
TSM922 2 2.5V 11V 4 µA No Open-Drain 10 mV 12 µs Request Here
TSM923 2 2.5V 11V 4 µA Yes Push-Pull 10 mV 12 µs Request Here
TSM924 4 2.5V 11V 8.5 µA Yes Open-Drain 10 mV 12 µs Request Here

DESCRIPTION

The TSM921–TSM924 family of single/dual/quad, low-voltage, micropower analog comparators is electrically and form-factor identical to the MAX921-MAX924 family of analog comparators. Ideal for 3V or 5V single-supply applications, the TSM921–TSM924 family can operate from single +2.5V to +11V supplies or from ±1.25V to ±5V dual supplies. The single TSM921 and the dual TSM922 draw less than 4μA (max) supply current over temperature. The dual TSM923 and the quad TSM924 draw less than 2.2μA per comparator over temperature.

All comparators in this family exhibit an input voltage range from the negative supply rail to within 1.3V of the positive supply. In addition, the comparators’ push-pull output stages are TTL/CMOS compatible and capable of sinking and sourcing current. The TSM921/TSM923/TSM924 each incorporates an internal 1.182V ±1% voltage reference. Without complicated feedback configurations and only requiring two additional resistors, adding external hysteresis via a separate pin is available on the single TSM921 and the dual TSM923.

PIN ASSIGNMENTS / PACKAGE OUTLINES

RoHS/Pb-free Packaging Information: Touchstone Semiconductor supplies only lead-free packaging.

ORDERING INFORMATION AND PRICING

Part Number Status Package /Pin Count Package Quantity
/Carrier
Temperature
Range
1k+
Price
TSM921CSA+T Active SOIC-8 1 Unit/Tape & Reel 0°C to +70°C $0.50 Check Inventory
TSM921CSA+T Active SOIC-8 2500 Units /Tape & Reel 0°C to +70°C $0.50 Check Inventory
TSM921CUA+T Active MSOP-8 1 Unit/Tape & Reel 0°C to +70°C $0.50 Check Inventory
TSM921CUA+T Active MSOP-8 2500 Units /Tape & Reel 0°C to +70°C $0.50 Check Inventory
TSM921ESA+T Active SOIC-8 1 Unit/Tape & Reel -40°C to +85°C $0.50 Check Inventory
TSM921ESA+T Active SOIC-8 2500 Units /Tape & Reel -40°C to +85°C $0.50 Check Inventory
TSM922CSA+T Active SOIC-8 1 Unit/Tape & Reel 0°C to +70°C $0.45 Check Inventory
TSM922CSA+T Active SOIC-8 2500 Units /Tape & Reel 0°C to +70°C $0.45 Check Inventory
TSM922CUA+T Active MSOP-8 1 Unit/Tape & Reel 0°C to +70°C $0.45 Check Inventory
TSM922CUA+T Active MSOP-8 2500 Units /Tape & Reel 0°C to +70°C $0.45 Check Inventory
TSM922ESA+T Active SOIC-8 1 Unit/Tape & Reel -40°C to +85°C $0.45 Check Inventory
TSM922ESA+T Active SOIC-8 2500 Units /Tape & Reel -40°C to +85°C $0.45 Check Inventory
TSM923CSA+T Active SOIC-8 1 Unit/Tape & Reel 0°C to +70°C $0.85 Check Inventory
TSM923CSA+T Active SOIC-8 2500 Units /Tape & Reel 0°C to +70°C $0.85 Check Inventory
TSM923CUA+T Active MSOP-8 1 Unit/Tape & Reel 0°C to +70°C $0.85 Check Inventory
TSM923CUA+T Active MSOP-8 2500 Units /Tape & Reel 0°C to +70°C $0.85 Check Inventory
TSM923ESA+T Active SOIC-8 1 Unit/Tape & Reel -40°C to +85°C $0.85 Check Inventory
TSM923ESA+T Active SOIC-8 2500 Units /Tape & Reel -40°C to +85°C $0.85 Check Inventory
TSM924CSE+T Active SOICN-16 1 Unit/Tape & Reel 0°C to +70°C $1.25 Check Inventory
TSM924CSE+T Active SOICN-16 2500 Units /Tape & Reel 0°C to +70°C $1.25 Check Inventory
TSM924ESE+T Active SOICN-16 1 Unit/Tape & Reel -40°C to +85°C $1.25 Check Inventory
TSM924ESE+T Active SOICN-16 2500 Units /Tape & Reel -40°C to +85°C $1.25 Check Inventory

International prices may differ because of local duties, taxes, fees, and currency exchange rates. For volume-specific pricing information and/or delivery quotes, please contact your local Touchstone Semiconductor manufacturer’s sales representative or authorized distributor.