LM6134AIM datasheet(8/14 Pages) NSC

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Typical Performance Characteristics T

A = 25˚C, RL =10 kΩ unless otherwise specified (Continued)

LM6132/34 Application Hints

The LM6132 brings a new level of ease of use to opamp sys-

tem design.

With greater than rail-to-rail input voltage range concern

over exceeding the common-mode voltage range is elimi-

nated.

Rail-to-rail output swing provides the maximum possible dy-

namic range at the output. This is particularly important

when operating on low supply voltages.

The high gain-bandwidth with low supply current opens new

battery powered applications, where high power consump-

tion, previously reduced battery life to unacceptable levels.

To take advantage of these features, some ideas should be

kept in mind.

ENHANCED SLEW RATE

Unlike most bipolar opamps, the unique phase reversal

prevention/speed-up circuit in the input stage eliminates

phase reversal and allows the slew rate to be very much a

function of the input signal amplitude.

Figure 2 shows how excess input signal is routed around the

input collector-base junctions directly to the current mirrors.

The LM6132/34 input stage converts the input voltage

change to a current change. This current change drives the

current mirrors through the collectors of Q1–Q2, Q3–Q4

when the input levels are normal.

Noise Voltage vs

Frequency

DS012349-25

Noise Current vs

Frequency

DS012349-38

NF vs Source Resistance

DS012349-39

Gain and Phase vs

Frequency

DS012349-28

Gain and Phase vs

Frequency

DS012349-29

Gain and Phase vs

Frequency

DS012349-30

GBW vs Supply

Voltage at 20 kHz

DS012349-31

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