Electrical Characteristics (LM4702A) Vcc = +85V, Vee = –85V (Pre-release
information) (Notes 1, 2)
The following specifications apply for IMUTE = 1.5mA, unless otherwise specified. Limits apply for TA = 25˚C.
Symbol
Parameter
Conditions
LM4702
Typical Limit
(Note 6) (Notes 7, 8)
Units
(Limits)
ICC
Total Quiescent Power Supply VCM = 0V, VO = 0V, IO = 0A
Current
27
0.001
50
TBD
mA (max)
% (max)
THD+N
Total Harmonic Distortion +
Noise
No load, AV = 30dB
TBD
@
VOUT = 20VRMS 1kHz
RS
Input Bias Resistor
Closed Loop Voltage Gain
Open Loop Gain
TBD
TBD
kΩ (max)
dB (min)
dB
Av
Av open
Vom
Vnoise
Vin = 1mVrms, f = 1KHz, C = 30pF
THD = 0.05%, Freq = 20Hz to 20KHz
Rs = 10kΩ, LPF = 30kHz, Av = 30dB
A-weighted
93
57
Output Voltage Swing
Output Noise
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
Vrms (min)
100
80
µV (max)
mA(min)
mA (max)
mA(min)
IOUT
Imute
Output Current
Outputs Shorted
5.5
1.5
Current into Mute Pin
To put part in “play” mode
mA (max)
dB (min)
V/µs (min)
XTALK
SR
Channel Separation (Note 11) f = 1kHz at Av = 30dB
90
Slew Rate
VIN = 1.2VP-P, f = 10kHz square Wave,
TBD
Outputs shorted
VOS
IB
Input Offset Voltage
Input Bias Current
VCM = 0V, IO = 0mA
VCM = 0V, IO = 0mA
5
TBD
TBD
TBD
mV (max)
nA (max)
dB (min)
150
110
PSRR
Power Supply Rejection Ratio Rs = 1k, f = 100Hz,
Vripple = 1Vrms, Input Referred
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.
Note 3: The maximum power dissipation must be de-rated at elevated temperatures and is dictated by T
, θ , and the ambient temperature T . The maximum
A
JMAX JC
allowable power dissipation is P
= (T
-T )/θ or the number given in the Absolute Maximum Ratings, whichever is lower. For the LM4702, T
= 150˚C
DMAX
JMAX
A
JC
JMAX
and the typical θ is 1˚C/W. Refer to the Thermal Considerations section for more information.
JC
Note 4: Human body model, 100pF discharged through a 1.5kΩ 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, θ (case to sink) is increased, but the heat sink will be electrically isolated from
CS
Vee.
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