Electrical Characteristics (LM4702A) Vcc = +85V, Vee = –85V (Pre-release

The following specifications apply for I

Symbol

Parameter

Conditions

LM4702

Units

(Limits)

Typical

Limit

(Note 6)

(Notes 7, 8)

I

CC

Total Quiescent Power Supply

Current

V

27

TBD

mA (max)

THD+N

Total Harmonic Distortion +

Noise

No load, A

V

0.001

TBD

% (max)

R

S

Input Bias Resistor

50

TBD

k

Ω (max)

Av

Closed Loop Voltage Gain

TBD

dB (min)

Av open

Open Loop Gain

Vin = 1mVrms, f = 1KHz, C = 30pF

93

dB

Vom

Output Voltage Swing

THD = 0.05%, Freq = 20Hz to 20KHz

57

TBD

Vrms (min)

Vnoise

Output Noise

Rs = 10k

Ω, LPF = 30kHz, Av = 30dB

A-weighted

100

80

TBD

TBD

µV (max)

I

OUT

Output Current

Outputs Shorted

5.5

TBD

TBD

mA(min)

mA (max)

I

mute

Current into Mute Pin

To put part in “play” mode

1.5

TBD

TBD

mA(min)

mA (max)

X

TALK

Channel Separation (Note 11)

f = 1kHz at Av = 30dB

90

TBD

dB (min)

SR

Slew Rate

V

Outputs shorted

TBD

TBD

V/µs (min)

V

OS

Input Offset Voltage

V

5

TBD

mV (max)

I

B

Input Bias Current

V

150

TBD

nA (max)

PSRR

Power Supply Rejection Ratio

Rs = 1k, f = 100Hz,

Vripple = 1Vrms, Input Referred

110

TBD

dB (min)

Note 1: All voltages are measured with respect to the ground pins, unless otherwise specified.

Note 2: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is

functional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test condition which

guarantee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit

is given. However, the typical value is a good indication of device’s performance.

and the typical

Note 4: Human body model, 100pF discharged through a 1.5k

Ω resistor.

Note 5: Machine Model: a 220pF - 240pF discharged through all pins.

Note 6: Typical specifications are measured at 25˚C and represent the parametric norm.

Note 7: Tested limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).

Note 8: Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis.

Note 9: The maximum operating junction temperature is 150˚C.

Note 10: PCB layout will affect cross talk. It is recommended that input and output traces be separated by as much distance as possible. Return ground traces from

outputs should be independent back to a single ground point and use as wide of traces as possible.

Note 11: The TA15A is a non-isolated package. The package’s metal back and any heat sink to which it is mounted are connected to the Vee potential when using

only thermal compound. If a mica washer is used in addition to thermal compound,

Vee.

www.national.com

6