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PDF ADG884 Data sheet ( Hoja de datos )
| Número de pieza | ADG884 | |
| Descripción | DUAL 2:1 MUX/SPDT AUDIO SWITCH | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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FEATURES
1.8 V to 5.5 V operation
Ultralow on resistance
0.34 Ω typ
0.38 Ω max at 5 V supply
Excellent audio performance, ultralow distortion
0.1 Ω typ
0.15 Ω max RON flatness
High current carrying capability
400 mA continuous
600 mA peak current at 5 V supply
Rail-to-rail switching operation
Typical power consumption (<0.1 μW)
APPLICATIONS
Cellular phones
PDAs
MP3 players
Power routing
Battery-powered systems
PCMCIA cards
Modems
Audio and video signal routing
Communications systems
GENERAL DESCRIPTION
The ADG884 is a low voltage CMOS device containing two
independently selectable single-pole, double-throw (SPDT)
switches. This device offers ultralow on resistance of less than
0.4 Ω over the full temperature range, making the part an ideal
solution for applications that require minimal distortion
through the switch. The ADG884 also has the capability of
carrying large amounts of current, typically 600 mA at 5 V
operation.
The ADG884 is available in a 10 bump, 2.0 mm × 1.50 mm
WLCSP package, a 10-lead LFCSP package, and a 10-lead
MSOP package. These tiny packages make the ADG884 the
ideal solution for space-constrained applications.
When on, each switch conducts equally well in both directions
and has an input signal range that extends to the supplies. The
ADG884 exhibits break-before-make switching action.
0.5 Ω CMOS, Dual
2:1 MUX/SPDT Audio Switch
ADG884
FUNCTIONAL BLOCK DIAGRAM
ADG884
S1A
S1B
IN1
IN2
S2A
S2B
D1
D2
SWITCHES SHOWN FOR A LOGIC 1 INPUT
Figure 1.
PRODUCT HIGHLIGHTS
1. Single 1.8 V to 5.5 V operation.
2. High current handling capability (400 mA continuous
current at 3.3 V).
3. 1.8 V logic-compatible.
4. Low THD + N (0.01% typ).
5. Tiny 2 mm × 1.5 mm WLCSP package, 3 mm × 3 mm
10-lead LFCSP package, and 10-lead MSOP package.
Table 1. ADG884 Truth Table
Logic (IN1/IN2) Switch 1A/2A
0 Off
1 On
Switch 1B/2B
On
Off
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113 © 2005 Analog Devices, Inc. All rights reserved.
1 page  
ADG884
VDD = 2.7 V to 3.6 V, GND = 0 V, unless otherwise noted.1
Table 4.
Parameter
ANALOG SWITCH
Analog Signal Range
On Resistance, RON
On Resistance Match Between
Channels, ∆RON
On Resistance Flatness, RFLAT (ON)
LEAKAGE CURRENTS
Source Off Leakage, IS (OFF)
Channel On Leakage, ID, IS (ON)
DIGITAL INPUTS
Input High Voltage, VINH
Input Low Voltage, VINL
Input Current, IINL or IINH
Digital Input Capacitance, CIN
DYNAMIC CHARACTERISTICS2
tON
tOFF
Break-Before-Make Time Delay, tBBM
Charge Injection
Off Isolation
Channel-to-Channel Crosstalk
25°C
0.4
0.5
0.02
0.07
0.18
±0.2
±0.2
0.005
2
42
56
14
19
24
85
−60
−120
−40°C to +85°C
0 V to VDD
0.6
0.1
0.25
1.3
0.8
±0.1
62
21
10
−60
Total Harmonic Distortion, THD + N
Insertion Loss
–3 dB Bandwidth
CS (OFF)
CD, CS (ON)
POWER REQUIREMENTS
IDD
0.03
−0.03
18
110
300
0.003
1 Temperature range of the B version is −40°C to +85°C.
2 Guaranteed by design, not subject to production test.
1
Unit
V
Ω typ
Ω max
Ω typ
Ω max
Ω typ
Ω max
nA typ
nA typ
V min
V max
μA typ
μA max
pF typ
ns typ
ns max
ns typ
ns max
ns typ
ns min
pC typ
dB typ
dB typ
dB typ
%
dB typ
MHz typ
pF typ
pF typ
μA typ
μA max
Test Conditions/Comments
VDD = 2.7 V, VS = 0 V to VDD
IS = 100 mA; see Figure 18
VDD = 2.7 V, VS = 0.6 V
IS = 100 mA
VDD = 2.7 V, VS = 0 V to VDD
IS = 100 mA
VDD = 3.6 V
VS = 0.6 V/3.3 V, VD = 3.3 V/0.6 V, see Figure 19
VS = VD = 0.6 V or 3.3 V; see Figure 20
VIN = VINL or VINH
RL = 50 Ω, CL = 35 pF
VS = 1.5 V/0 V; see Figure 21
RL = 50 Ω, CL = 35 pF
VS = 1.5 V; see Figure 21
RL = 50 Ω, CL = 35 pF
VS1 = VS2 = 1.5 V; see Figure 22
VS = 1.25 V, RS = 0 Ω, CL = 1 nF; see Figure 23
RL = 50 Ω, CL = 5 pF, f = 100 kHz; see Figure 24
S1A−S2A/S1B−S2B, RL = 50 V, CL = 5 pF,
f = 100 kHz; see Figure 27
S1A−S1B/S2A−S2B, RL = 50 Ω, CL = 5 pF,
f = 100 kHz; see Figure 25
RL = 32 Ω, f = 20 Hz to 20 kHz, VS = 1.5 V p-p
RL = 50 Ω, CL = 5 pF; see Figure 26
RL = 50 Ω, CL = 5 pF; see Figure 26
VDD = 3.6 V
Digital inputs = 0 V or 3.6 V
Rev. A | Page 5 of 16
5 Page 
TERMINOLOGY
IDD
Positive supply current.
VD (VS)
Analog voltage on Terminals D, S.
RON
Ohmic resistance between D and S.
RFLAT (ON)
The difference between the maximum and minimum values of
on resistance as measured on the switch.
ΔRON
On resistance match between any two channels.
IS (OFF)
Source leakage current with the switch off.
ID (OFF)
Drain leakage current with the switch off.
ID, IS (ON)
Channel leakage current with the switch on.
VINL
Maximum input voltage for Logic 0.
VINH
Minimum input voltage for Logic 1.
IINL (IINH)
Input current of the digital input.
CS (OFF)
Off switch source capacitance. Measured with reference to
ground.
CD (OFF)
Off switch drain capacitance. Measured with reference to
ground.
ADG884
CD, CS (ON)
On switch capacitance. Measured with reference to ground.
CIN
Digital input capacitance.
tON
Delay time between the 50% and 90% points of the digital input
and switch on condition.
tOFF
Delay time between the 50% and 90% points of the digital input
and switch off condition.
tBBM
On or off time measured between the 80% points of both
switches when switching from one to another.
Charge Injection
Measure of the glitch impulse transferred from the digital input
to the analog output during on-off switching.
Off Isolation
Measure of unwanted signal coupling through an off switch.
Crosstalk
Measure of unwanted signal that is coupled through from one
channel to another as a result of parasitic capacitance.
−3 dB Bandwidth
Frequency at which the output is attenuated by 3 dB.
On Response
Frequency response of the on switch.
Insertion Loss
The loss due to the on resistance of the switch.
THD + N
Ratio of the harmonics amplitude plus noise of a signal to the
fundamental.
Rev. A | Page 11 of 16
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet ADG884.PDF ] | |
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