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PDF ADG795A Data sheet ( Hoja de datos )
| Número de pieza | ADG795A | |
| Descripción | Five-Channel SPDT Switch | |
| Fabricantes | Analog Devices | |
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I2C-Compatible, Wide Bandwidth,
Five 2:1 Multiplexer
ADG795A/ADG795G
FEATURES
Bandwidth: 325 MHz
Low insertion loss and on resistance: 2.6 Ω typical
On resistance flatness: 0.3 Ω typical
Single 3 V/5 V supply operation
3.3 V analog signal range (5 V supply, 75 Ω load)
Low quiescent supply current: 1 nA typical
Fast switching times: tON = 186 ns, tOFF = 177 ns
ESD protection
4 kV human body model (HBM)
200 V machine model (MM)
1 kV field-induced charged device model (FICDM)
I2C®-compatible interface
Compact 24-lead LFCSP
APPLICATIONS
S-Video RGB/YPbPr video switches
HDTV
Projection TV
DVD-R/RW
AV receivers
GENERAL DESCRIPTION
The ADG795A/ADG795G are monolithic CMOS devices
comprising five 2:1 multiplexers/demultiplexers controllable via
a standard I2C serial interface. The CMOS process provides
ultralow power dissipation, yet gives high switching speed and
low on resistance.
The on-resistance profile is very flat over the full analog input
range and wide bandwidth ensures excellent linearity and low
distortion. These features, combined with a wide input signal
range make the ADG795A/ADG795G the ideal switching
solution for a wide range of TV applications including S-video,
RGB and YPbPr video switches.
The switches conduct equally well in both directions when on.
In the off condition, signal levels up to the supplies are blocked.
The ADG795A/ADG795G switches exhibit break-before-make
switching action. The ADG795G has one general-purpose logic
output pins controlled by the I2C interface that can also be used
to control other non-I2C-compatible devices such as video filters.
The integrated I2C interface provides a large degree of flexibility
in the system design. It has three configurable I2C address pins
FUNCTIONAL BLOCK DIAGRAMS
VDD GND
VDD
GND
ADG795A
ADG795G
S1A
S1A
D1 D1
S1B
S1B
S2A
S2B
S2A
D2
S2B
D2
S3A
S3B
S3A
D3
S3B
D3
S4A
S4B
S4A
D4
S4B
D4
S5A
S5B
S5A
D5
S5B
D5
I2C SERIAL
INTERFACE
I2C SERIAL
INTERFACE
GPO1
A0 A1 A2 SDA SCL
Figure 1.
A0 A1 A2 SDA SCL
that allow up to eight devices on the same bus. This allows the
user to expand the capability of the device by increasing the size
of the switching array.
The ADG795A/ADG795G operate from a single 3 V or 5 V
supply voltage and are available in a compact 4 mm × 4 mm
body, 24-lead, lead-free package (LFCSP).
PRODUCT HIGHLIGHTS
1. Wide bandwidth: 325 MHz.
2. Ultralow power dissipation.
3. Extended input signal range.
4. Integrated I2C serial interface.
5. Compact 4 mm × 4 mm, 24-lead, lead-free LFCSP.
6. ESD protection tested as per ESD Association standards:
4 kV HBM (ANSI/ESD STM5.1-2001)
200 V MM (ANSI/ESD STM5.2-1999)
1 kV FICDM (ANSI/ESDSTM5.3.1-1999)
Rev. 0
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
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
©2006 Analog Devices, Inc. All rights reserved.
1 page  
ADG795A/ADG795G
VDD = 3 V ± 10%, GND = 0 V, TA = −40°C to +85°C, unless otherwise noted.
Table 2.
Parameter
ANALOG SWITCH
Analog Signal Range2
On Resistance, RON
On-Resistance Matching Between
Channels, ∆RON
On-Resistance Flatness, RFLAT(ON)
LEAKAGE CURRENTS
Source Off Leakage (IS(OFF))
Drain Off Leakage (ID(OFF))
Channel On Leakage (ID(ON), IS(ON))
DYNAMIC CHARACTERISTICS3
tON, tENABLE
tOFF, tDISABLE
Break-Before-Make Time Delay, tD
I2C-to-GPO Propagation Delay, tH, tL
Off Isolation
Channel-to-Channel Crosstalk
Same Multiplexer
Different Multiplexer
−3 dB Bandwidth
THD + N
Charge Injection
CS(OFF)
CD(OFF)
CD(ON), CS(ON)
Power Supply Rejection Ratio, PSRR
Differential Gain Error
Differential Phase Error
Conditions
VS=VDD, RL=1MΩ
VS=VDD, RL=75Ω
VD = 0 V, IDS = −10 mA, see Figure 22
VD = 0 V to 1 V, IDS = −10 mA, see Figure 22
VD = 0 V, IDS = −10 mA
VD = 1 V, IDS = −10 mA
VD = 0 V to 1 V, IDS = −10 mA
VD = 2 V/1 V, VS = 1 V/2 V, see Figure 23
VD = 2 V/1 V, VS = 1 V/2 V, see Figure 23
VD = VS = 2 V/1 V, see Figure 24
CL = 35 pF, RL = 50 Ω, VS = 2 V, see Figure 28
CL = 35 pF, RL = 50 Ω, VS = 2 V, see Figure 28
CL = 35 pF, RL = 50 Ω, VS1 = VS2 = 2 V, see Figure 29
ADG795G only
f = 10 MHz, RL = 50 Ω, see Figure 26
f = 10 MHz, RL = 50 Ω, see Figure 27
RL = 50 Ω, see Figure 25
RL = 100 Ω
CL = 1 nF, VS = 0 V, see Figure 30
f = 20 kHz
CCIR330 test signal
CCIR330 test signal
LOGIC INPUTS3
A0, A1, A2
Input High Voltage, VINH
Input Low Voltage, VINL
Input Current, IINL or IINH
Input Capacitance, CIN
SCL, SDA
Input High Voltage, VINH
Input Low Voltage, VINL
Input Leakage Current, IIN
Input Hysteresis
Input Capacitance, CIN
VIN = 0 V to VDD
VIN = 0 V to VDD
Min Typ1 Max Unit
0 2.2 V
0 1.7 V
2.2 4
Ω
6Ω
0.15 0.6
Ω
1.1 Ω
0.3 2.8 Ω
±0.25
±0.25
±0.25
nA
nA
nA
198 270 ns
195 260 ns
13
ns
121 ns
−60 dB
−55 dB
−70 dB
310 MHz
0.14 %
2.5 pC
10 pF
13 pF
27 pF
70 dB
0.28 %
0.28 Degree
s
2.0
0.8
0.005
±1
3
V
V
μA
pF
0.7 × VDD
−0.3
0.005
0.05 × VDD
3
VDD + 0.3
+0.3 × VDD
±1
V
V
μA
V
pF
Rev. 0 | Page 5 of 24
5 Page 
TYPICAL PERFORMANCE CHARACTERISTICS
3.0
TA = 25°C
1 CHANNEL
2.5
VDD = 3.3V, RL = 1MΩ
VDD = 3V, RL = 1MΩ
VDD = 2.7V, RL = 1MΩ
2.0
VDD = 3.3V, RL = 75Ω
1.5 VDD = 3V, RL = 75Ω
VDD = 2.7V, RL = 75Ω
1.0
0.5
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
INPUT SIGNAL (V)
Figure 5. Analog Signal Range, 3 V Supply
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
VDD = 5V, RL = 1MΩ
VDD = 5.5V, RL = 1MΩ
VDD = 5.5V, RL = 75Ω
VDD = 4.5V, RL = 1MΩ
VDD = 5V, RL = 75Ω
VDD = 4.5V, RL = 75Ω
TA = 25°C
1 CHANNEL
123456
INPUT SIGNAL (V)
Figure 6. Analog Signal Range, 5 V Supply
6
TA = 25°C
1 CHANNEL
5
4
3
VDD = 2.7V
VDD = 3.0V
VDD = 3.3V
2
1
0
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8
VD (VS) (V)
Figure 7. On Resistance vs. VD (VS), 3 V Supply
ADG795A/ADG795G
4.0
TA = 25°C
1 CHANNEL
3.5
3.0
VDD = 4.5V
VDD = 5.0V
VDD = 5.5V
2.5
2.0
1.5
1.0
0.5
0
0 0.5 1.0 1.5 2.0 2.5
VD (VS) (V)
Figure 8. On Resistance vs. VD (VS), 5 V Supply
3.0
7
TA = 25°C
1 CHANNEL
6 VDD = 3V
5
TA = +85°C
4
TA = –40°C
3
TA = +25°C
2
1
0
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
VD (VS) (V)
Figure 9. On Resistance vs. VD (VS) for Various Temperatures, 3 V Supply
4.5
TA = +25°C
4.0
1 CHANNEL
VDD = 5V
3.5
3.0
TA = +85°C
TA = +25°C
TA = –40°C
2.5
2.0
1.5
1.0
0.5
0
0 0.5 1.0 1.5 2.0 2.5 3.0
VD (VS) (V)
Figure 10. On Resistance vs. VD (VS) for Various Temperatures, 5 V Supply
Rev. 0 | Page 11 of 24
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet ADG795A.PDF ] | |
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