INA2134-EP

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SBOS595C – MARCH 2012 – REVISED MARCH 2012

THERMAL INFORMATION

INA2134

THERMAL METRIC(1)

D

UNITS

14 PINS

θJA

Junction-to-ambient thermal resistance(2)

73.1

θJC

Junction-to-case thermal resistance

31.1

θJB

Junction-to-board thermal resistance(3)

27.6

°C/W

ψJT

Junction-to-top characterization parameter(4)

3.2

ψJB

Junction-to-board characterization parameter(5)

27.3

xxx

(1)

For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.

(2)

The junction-to-ambient thermal resistance under natural convection is obtained in a simulation on a JEDEC-standard, high-K board, as

specified in JESD51-7, in an environment described in JESD51-2a.

(3)

The junction-to-board thermal resistance is obtained by simulating in an environment with a ring cold plate fixture to control the PCB

temperature, as described in JESD51-8.

(4)

The junction-to-top characterization parameter,

ψJT, estimates the junction temperature of a device in a real system and is extracted

from the simulation data for obtaining

θJA, using a procedure described in JESD51-2a (sections 6 and 7).

(5)

The junction-to-board characterization parameter,

ψJB, estimates the junction temperature of a device in a real system and is extracted

from the simulation data for obtaining

θJA , using a procedure described in JESD51-2a (sections 6 and 7).

ELECTRICAL CHARACTERISTICS

At TA = 25°C, VS = ±18 V, RL = 2 kΩ, and Ref pin connected to Ground (unless otherwise noted).

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

AUDIO PERFORMANCE

Total harmonic distortion + noise, f = 1 kHz

VIN = 10 Vrms

0.0005

%

Noise floor(1)

20 kHz BW

-100

dBu

Headroom(1)

THD+N < 1%

23

dBu

FREQUENCY RESPONSE

Small-signal bandwidth

3.1

MHz

Slew rate

14

V/µs

Settling time:

0.1%

10-V step, CL = 100 pF

2

µs

0.01%

10-V step, CL = 100 pF

3

µs

Overload recovery time

50% overdrive

3

µs

Channel separation (dual), f = 1 kHz

117

dB

OUTPUT NOISE VOLTAGE(2)

f = 20 Hz to 20 kHz

7

µVrms

f = 1 kHz

52

nV/

√Hz

OFFSET VOLTAGE(3)

Input offset voltage

VCM = 0 V

±100

±1000

µV

vs Temperature

-55°C to 125°C

±2

µV/°C

vs Power

VS = ±4 V to ±18 V, -55°C to 125°C

±5

±60

µV/V

supply

INPUT

Common-mode voltage range:

Positive

VO = 0 V

2(V+) – 5

2(V+) – 4

V

Negative

VO = 0 V

2(V-) + 5

2(V-) + 2

V

Differential voltage range

See Typical Curve

VCM = ±31 V, RS = 0 Ω

74

90

dB

Common-mode rejection

VCM = ±31 V, RS = 0 Ω, -55°C to 125°C

72

85

dB

Impedance:(4)

Differential

50

k

Ω

Common-mode

50

k

Ω

(1)

dBu = 20log (Vrms/0.7746).

(2)

Includes effects of amplifier’s input current noise and thermal noise contribution of resistor network.

(3)

Includes effects of amplifier’s input bias and offset currents.

(4)

25-k

Ω resistors are ratio matched, but have ±25% absolute value.

Copyright © 2012, Texas Instruments Incorporated

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