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The ''Rail Splitter'' Precision Virtual Ground 8-SOIC

TLE2426CDR General Description

Description for the TLE2426In signal-conditioning applications utilizing a single power source, a reference voltage equal to one-half the supply voltage is required for termination of all analog signal grounds. Texas Instruments presents a precision virtual ground whose output voltage is always equal to one-half the input voltage, the TLE2426 "rail splitter."The unique combination of a high-performance, micropower operational amplifier and a precision-trimmed divider on a single silicon chip results in a precise VO/VI ratio of 0.5 while sinking and sourcing current. The TLE2426 provides a low-impedance output with 20 mA of sink and source capability while drawing less than 280uAof supply current over the full input range of 4V to 40V. A designer need not pay the price in terms of board space for a conventional signal ground consisting of resistors, capacitors, operational amplifiers, and voltage references. The performance and precision of the TLE2426 is available in an easy-to-use, space saving, 3-terminal LP package. For increased performance, the optional 8-pin packages provide a noise-reduction pin. With the addition of an external capacitor (CNR), peak-to-peak noise is reduced while line ripple rejection is improved.Initial output tolerance for a single 5-V or 12-V system is better than 1% with 3.6% over the full 40-V input range. Ripple rejection exceeds 12 bits of accuracy. Whether the application is for a data acquisition front end, analog signal termination, or simply a precision voltage reference, the TLE2426 eliminates a major source of system error. The C-suffix devices are characterized for operation from 0°C to 70°C. The I suffix devices are characterized for operation from -40°C to 85°C. The M suffix devices are characterized over the full military temperature range of -55°C to 125°C.

Key Features

Features for the TLE2426

  • 1/2 VI Virtual Ground for Analog Systems
  • Self-Contained 3-terminal TO-226AA Package
  • Micropower Operation.170 uA Typ, VI = 5 V
  • Wide VI Range.4 V to 40 V
  • High Output-Current Capability
    • Source.20 mA Typ
    • Sink.20 mA Typ
  • Excellent Output Regulation
    • -45 uV Typ at IO = 0 to -10 mA
    • +15 uV Typ at IO = 0 to +10 mA
  • Low-Impedance Output.0.0075 Ω Typ
  • Noise Reduction Pin (D, JG, and P Packages Only)


Source Content uid TLE2426CDR Pbfree Code Yes
Part Life Cycle Code Lifetime Buy Pin Count 8
Reach Compliance Code compliant ECCN Code EAR99
HTS Code 8542.39.00.01 Analog IC - Other Type ANALOG CIRCUIT
JESD-30 Code R-PDSO-G8 Moisture Sensitivity Level 1
Number of Channels 1 Number of Functions 1
Number of Terminals 8 Peak Reflow Temperature (Cel) 260
Surface Mount YES Temperature Grade COMMERCIAL
Terminal Position DUAL Time@Peak Reflow Temperature-Max (s) 30
Product Category Voltage References Mounting Style SMD/SMT
Reference Type Ground Precision References Output Voltage 2 V to 20 V
Initial Accuracy 1 % Temperature Coefficient 35 PPM / C
Series VREF - Input Voltage - Max 40 V Shunt Current - Max 20 mA
Minimum Operating Temperature - 55 C Maximum Operating Temperature + 125 C
Series TLE2426 Height 1.58 mm
Length 4.9 mm Product Voltage References
Product Type Voltage References Factory Pack Quantity 2500
Subcategory PMIC - Power Management ICs Topology Series References
Width 3.91 mm Unit Weight 0.002677 oz

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