LM48822, LM48822TLEVAL

SNAS456C – MAY 2008 – REVISED MAY 2013

www.ti.com

Operating Ratings

Temperature Range

TMIN ≤ TA ≤ TMAX

−40°C ≤ TA ≤ +85°C

Supply Voltage (VDD)

2.4V

≤ VDD ≤ 5.5V

Electrical Characteristics VDD = 3.6V

(1) (2)

The following specifications apply for AV = 0dB, RL = 16Ω, f = 1kHz, unless otherwise specified. Limits apply to TA = 25°C.

LM48822

Units

Parameter

Test Conditions

(Limits)

Typ(3)

Limit(4)

VIN = 0V, both channels active

IDD

Quiescent Power Supply Current

RL = 16Ω

3.5

4.5

mA (max)

RL = ∞

3.5

4.5

mA (max)

ISD

Shutdown Current

Shutdown Enabled

0.06

1.2

µA (max)

VOS

Differential Output Offset Voltage

VIN = 0V, RL = 16Ω

1

5

mV (max)

TWU

Wake Up Time

200

μs

+0.5

dB (max)

Minimum Gain Setting

–59.5

–0.5

dB (min)

AV

Voltage Gain

+0.5

dB (max)

Maximum Gain Setting

3.8

–0.5

dB (min)

AV = 4dB

25

30

k

Ω (max)

RIN

Input Resistance

AV = –60dB

60

70

k

Ω (max)

RL= 16Ω, f = 1kHz, THD+N = 1%

Single channel

70

mW

Two channels in phase

35

27

mW (min)

PO

Output Power

RL= 32Ω, f = 1kHz, THD+N = 1%

Single channel

65

mW

Two channels in phase

40

mW

PO = 50mW, f = 1kHz, RL = 16Ω

0.04

%

single channel

THD+N

Total Harmonic Distortion + Noise

PO = 40mW, f = 1kHz, RL = 32Ω

0.02

%

single channel

VRIPPLE = 200mVP-P, Inputs AC GND

PSRR

Power Supply Rejection Ratio

CIN = 1μF, input referred, SD_BIAS = 0

fRIPPLE = 217Hz

110

100

dB (min)

fRIPPLE = 1kHz

100

dB

CMRR

Common Mode Rejection Ratio

VRIPPLE = 1VP-P

95

dB

RL ≥ 16Ω, POUT = 1.6mW, f = 1kHz

80

70

dB (min)

XTALK

Crosstalk

RL ≥ 10kΩ, VOUT = 1VRMS, f = 1kHz

95

85

dB (min)

SNR

Signal-to-Noise Ratio

RL = 16Ω, f = 1kHz

100

dB

AV = 4dB, Input referred

∈OS

Output Noise

7

μV

A-Weighted Filter

ROUT

Output Impedance

Charge pump-only mode enabled

40

25

k

Ω (min)

Voltage applied to amplifier outputs in

VOUT

Maximum Voltage Swing

2

VRMS (min)

charge pump-only mode

(1)

“Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur, including inoperability and degradation of

device reliability and/or performance. Functional operation of the device and/or non-degradation at the Absolute Maximum

RatingsRatings or other conditions beyond those indicated in the Recommended Operating Conditions is not implied. The

Recommended Operating Conditions indicate conditions at which the device is functional and the device should not be operated beyond

such conditions. All voltages are measured with respect to the ground pin, unless otherwise specified

(2)

The Electrical Characteristics tables list ensured specifications under the listed Recommended Operating Conditions except as

otherwise modified or specified by the Electrical Characteristics Conditions and/or Notes. Typical specifications are estimations only and

are not ensured.

(3)

Typical values represent most likely parametric norms at TA = +25ºC, and at the Recommended Operation Conditions at the time of

product characterization and are not specified.

(4)

Datasheet min/max specification limits are ensured by test or statistical analysis.

4

Submit Documentation Feedback

Copyright © 2008–2013, Texas Instruments Incorporated

Product Folder Links: LM48822 LM48822TLEVAL