TLE2426MDREP.A中文资料德州仪器数据手册PDF规格书

Controlled Baseline

− One Assembly/Test Site, One Fabrication

Site

Extended Temperature Performance of

−55°C to 125°C

Enhanced Diminishing Manufacturing

Sources (DMS) Support

Enhanced Product-Change Notification

Qualification Pedigree†

One-Half VI Virtual Ground for Analog

Systems

Micropower Operation . . . 170 μA 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

− −102 μV Typ at IO = 0 mA to −10 mA

− 49 μV Typ at IO = 0 mA to 10 mA

Low-Impedance Output . . . 0.0075 Ω Typ

Noise Reduction Pin

description/ordering information

In 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. TI

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 precisiontrimmed

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 lowimpedance

output with 20 mA of sink and source

capability, while drawing less than 280 μA of

supply current over the full input range of 4 V to

40 V. 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. For increased

performance, the 8-pin package provides 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% 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.