AD ADG791ABCPZ-REEL Ic-compatible, wide bandwidth, quad, 2:1 multiplexer Datasheet

I2C-Compatible, Wide Bandwidth,
Quad, 2:1 Multiplexer
ADG791A/ADG791G
FEATURES
FUNCTIONAL BLOCK DIAGRAM
VDD
VDD
GND
ADG791A
GND
ADG791G
S1A
S1A
D1
D1
S1B
S1B
S2A
S2A
D2
D2
S2B
S2B
S3A
S3A
D3
D3
S3B
S3B
S4A
S4A
D4
D4
S4B
S4B
I2C SERIAL
INTERFACE
I2C SERIAL
INTERFACE
GPO1
APPLICATIONS
A0
S-video RGB/YPbPr video switches
HDTVs
Projection TVs
DVD-R/RW
AV receivers
A1
A2 SDA SCL
A0
A1
A2 SDA SCL
06033-001
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
I2C®-compatible interface
Compact 24-lead LFCSP
ESD protection
4 kV human body model (HBM)
200 V machine model (MM)
1 kV field-induced charged device model (FICDM)
Figure 1.
GENERAL DESCRIPTION
The ADG791A/ADG791G are monolithic CMOS devices
comprising four 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 ADG791A/ADG791G 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 ADG791A/ADG791G switches exhibit break-before-make
switching action. The ADG791G has one general-purpose logic
output pin 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
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 ADG791A/ADG791G operate from a single 3 V or 5 V
supply voltage and is available in a compact 4 mm × 4 mm
body, 24-lead 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, Pb-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.
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
©2006 Analog Devices, Inc. All rights reserved.
ADG791A/ADG791G
TABLE OF CONTENTS
Features .............................................................................................. 1
Terminology .................................................................................... 16
Applications....................................................................................... 1
Theory of Operation ...................................................................... 17
Functional Block Diagram .............................................................. 1
I2C Serial Interface ..................................................................... 17
General Description ......................................................................... 1
I2C Address.................................................................................. 17
Product Highlights ........................................................................... 1
Write Operation.......................................................................... 17
Revision History ............................................................................... 2
LDSW Bit..................................................................................... 19
Specifications..................................................................................... 3
Power On/Software Reset.......................................................... 19
I2C Timing Specifications............................................................ 7
Read Operation........................................................................... 19
Timing Diagram ........................................................................... 8
Evaluation Board ............................................................................ 20
Absolute Maximum Ratings............................................................ 9
Using the ADG791G Evaluation Board .................................. 20
ESD Caution.................................................................................. 9
Outline Dimensions ....................................................................... 23
Pin Configurations and Function Descriptions ......................... 10
Ordering Guide .......................................................................... 23
Typical Performance Characteristics ........................................... 11
Test Circuits..................................................................................... 14
REVISION HISTORY
7/06—Revision 0: Initial Version
Rev. 0 | Page 2 of 24
ADG791A/ADG791G
SPECIFICATIONS
VDD = 5 V ± 10%, GND = 0 V, TA = −40°C to +85°C, unless otherwise noted.
Table 1.
Parameter
ANALOG SWITCH
Analog Signal Range 2
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 CHARACTERISTICS 3
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
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
Conditions
Min
VS = VDD, RL = 1 MΩ
VS = VDD, RL = 75 Ω
VD = 0 V, IDS = −10 mA, see Figure 22
VD = 0 V to 1 V, IDS = −10 mA, see Figure 22
0
0
Typ 1
2.6
VD = 0 V, IDS = −10 mA
VD = 1 V, IDS = −10 mA
VD = 0 V to 1 V, IDS = −10 mA
0.15
VD = 4 V/1 V, VS = 1 V/4 V, see Figure 23
VD = 4 V/1 V, VS = 1 V/4 V, see Figure 23
VD = VS = 4 V/1 V, see Figure 24
±0.25
±0.25
±0.25
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
(ADG791G only)
f = 10 MHz, RL = 50 Ω, see Figure 26
f = 10 MHz, RL = 50 Ω, see Figure 27
186
177
3
0.3
1
Max
Unit
4
3.3
3.5
4
V
V
Ω
Ω
0.5
0.6
0.55
Ω
Ω
Ω
nA
nA
nA
250
240
−60
ns
ns
ns
ns
dB
−55
−70
325
0.14
5
10
13
27
70
0.32
0.44
dB
dB
MHz
%
pC
pF
pF
pF
dB
%
Degrees
130
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
2.0
VIN = 0 V to VDD
0.005
3
0.7 × VDD
−0.3
VIN = 0 V to VDD
0.005
0.05 × VDD
3
Rev. 0 | Page 3 of 24
0.8
±1
VDD + 0.3
+0.3 × VDD
±1
V
V
μA
pF
V
V
μA
V
pF
ADG791A/ADG791G
Parameter
LOGIC OUTPUTS3
SDA Pin
Output Low Voltage, VOL
Floating-State Leakage Current
Floating-State Output Capacitance
GPO1 Pin and GPO2 Pin
Output Low Voltage, VOL
Output High Voltage, VOH
POWER REQUIREMENTS
IDD
Conditions
Min
Typ 1
ISINK = 3 mA
ISINK = 6 mA
ILOAD = +2 mA
ILOAD = −2 mA
Max
Unit
0.4
0.6
±1
10
V
V
μA
pF
0.4
V
V
1
0.2
0.7
μA
mA
mA
2.0
Digital inputs = 0 V or VDD, I2C interface inactive
I2C interface active, fSCL = 400 kHz
I2C interface active, fSCL = 3.4 MHz
1
All typical values are at TA = 25°C, unless otherwise stated.
Guaranteed by initial characterization, not subject to production test.
3
Guaranteed by design, not subject to production test.
2
Rev. 0 | Page 4 of 24
0.001
ADG791A/ADG791G
VDD = 3 V ± 10%, GND = 0 V, TA = −40°C to +85°C, unless otherwise noted.
Table 2.
Parameter
ANALOG SWITCH
Analog Signal Range 2
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 CHARACTERISTICS 3
tON, tENABLE
tOFF, tDISABLE
Break-Before-Make Time Delay, tD
I2C to GPO Propagation Delay, tH, tL
(ADG791G only)
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
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
Conditions
Min
VS = VDD, RL = 1 MΩ
VS = VDD, RL = 75 Ω
VD = 0 V, IDS = −10 mA, see Figure 22
VD = 0 V to 1 V, IDS = −10 mA, see Figure 22
0
0
Typ 1
3
VD = 0 V, IDS = −10 mA
VD = 1 V, IDS = −10 mA
VD = 0 V to 1 V, IDS = −10 mA
0.15
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
±0.25
±0.25
±0.25
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
198
195
3
0.8
1
Max
Unit
2.2
1.7
4
6
V
V
Ω
Ω
0.6
1.1
2.8
Ω
Ω
Ω
nA
nA
nA
270
260
121
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
−60
dB
−55
−70
310
0.14
2.5
10
13
27
70
0.28
0.28
dB
dB
MHz
%
pC
pF
pF
pF
dB
%
Degrees
2.0
VIN = 0 V to VDD
0.005
3
0.7 × VDD
−0.3
VIN = 0 V to VDD
0.005
0.05 × VDD
3
Rev. 0 | Page 5 of 24
ns
ns
ns
ns
0.8
±1
VDD + 0.3
+0.3 × VDD
±1
V
V
μA
pF
V
V
μA
V
pF
ADG791A/ADG791G
Parameter
LOGIC OUTPUTS3
SDA Pin
Output Low Voltage, VOL
Floating-State Leakage Current
Floating-State Output Capacitance
GPO1 Pin and GPO2 Pin
Output Low Voltage, VOL
Output High Voltage, VOH
POWER REQUIREMENTS
IDD
Conditions
Min
Typ 1
ISINK = 3 mA
ISINK = 6 mA
Max
Unit
0.4
0.6
±1
V
V
μA
pF
0.4
V
V
1
0.1
0.2
μA
mA
mA
3
ILOAD = +2 mA
ILOAD = −2 mA
2.0
Digital inputs = 0 V or VDD, I2C interface inactive
I2C interface active, fSCL = 400 kHz
I2C interface active, fSCL = 3.4 MHz
1
All typical values are at TA = 25°C, unless otherwise stated.
Guaranteed by initial characterization, not subject to production test.
3
Guaranteed by design, not subject to production test.
2
Rev. 0 | Page 6 of 24
0.001
ADG791A/ADG791G
I2C TIMING SPECIFICATIONS
VDD = 2.7 V to 5.5 V; GND = 0 V; TA = −40°C to +85°C, unless otherwise noted. See Figure 2 for timing diagram.
Table 3.
Parameter 1
fSCL
t1
t2
t3
t4 2
t5
t6
t7
t8
t9
t10
t11
Conditions
Standard mode
Fast mode
High speed mode
CB = 100 pF max
CB = 400 pF max
Standard mode
Fast mode
High speed mode
CB = 100 pF max
CB = 400 pF max
Standard mode
Fast mode
High speed mode
CB = 100 pF max
CB = 400 pF max
Standard mode
Fast mode
High speed mode
Standard mode
Fast mode
High speed mode
CB = 100 pF max
CB = 400 pF max
Standard mode
Fast mode
High speed mode
Standard mode
Fast mode
High speed mode
Standard mode
Fast mode
Standard mode
Fast mode
High speed mode
Standard mode
Fast mode
High speed mode
CB = 100 pF max
CB = 400 pF max
Standard mode
Fast mode
High speed mode
CB = 100 pF max
CB = 400 pF max
Standard mode
Fast mode
High speed mode
CB = 100 pF max
CB = 400 pF max
Min
Max
100
400
Unit
kHz
kHz
3.4
1.7
4
0.6
MHz
MHz
μs
μs
60
120
4.7
1.3
ns
ns
μs
μs
160
320
250
100
10
0
0
ns
ns
ns
ns
ns
μs
μs
3.45
0.9
0
0
4.7
0.6
160
4
0.6
160
4.7
1.3
4
0.6
160
703
150
1000
300
ns
ns
μs
μs
ns
μs
μs
ns
μs
μs
μs
μs
ns
ns
ns
80
160
300
300
ns
ns
ns
ns
20 + 0.1 CB
80
160
1000
300
ns
ns
ns
ns
10
20
40
80
ns
ns
20 + 0.1 CB
B
10
20
20 + 0.1 CB
B
10
20
B
Rev. 0 | Page 7 of 24
Description
Serial clock frequency
tHIGH, SCL high time
tLOW, SCL low time
tSU;DAT, data setup time
tHD;DAT, data hold time
tSU;STA, setup time for a repeated start condition
tHD;STA, hold time (repeated) start condition
tBUF, bus free time between a stop and a start condition
tSU;STO, setup time for stop condition
tRDA, rise time of SDA signal
tFDA, fall time of SDA signal
tRCL, rise time of SCL signal
ADG791A/ADG791G
Parameter 1
t11A
t12
tSP
1
2
Conditions
Standard mode
Min
Max
1000
Unit
ns
Fast mode
High speed mode
CB = 100 pF max
CB = 400 pF max
Standard mode
Fast mode
High speed mode
CB = 100 pF max
CB = 400 pF max
Fast mode
High speed mode
20 + 0.1 CB
300
ns
10
20
20 + 0.1 CB
80
160
300
300
ns
ns
ns
ns
10
20
0
0
40
80
50
10
ns
ns
ns
ns
B
B
Description
tRCL1, rise time of SCL signal after a repeated start condition
and after an acknowledge bit.
tFCL, fall time of SCL signal
Pulse width of suppressed spike
Guaranteed by initial characterization. CB refers to capacitive load on the bus line, tr and tf measured between 0.3 VDD and 0.7 VDD.
A device must provide a data hold time for SDA to bridge the undefined region of the SCL falling edge.
TIMING DIAGRAM
t11
t12
t6
t2
SCL
t1
t6
t4
t5
t3
t8
t10
t9
t7
P
S
S
Figure 2. Timing Diagram for 2-Wire Serial Interface
Rev. 0 | Page 8 of 24
P
06033-002
SDA
ADG791A/ADG791G
ABSOLUTE MAXIMUM RATINGS
TA = 25°C, unless otherwise noted.
Table 4.
Parameter
VDD to GND
Analog, Digital Inputs
Continuous Current, S or D
Peak Current, S or D
Operating Temperature Range
Industrial (B Version)
Storage Temperature Range
Junction Temperature
θJA Thermal Impedance
24-Lead LFCSP
Lead Temperature, Soldering
(10 sec)
IR Reflow, Peak Temperature
(<20 sec)
Ratings
−0.3 V to +6 V
−0.3 V to VDD + 0.3 V or
30 mA, whichever occurs first
100 mA
300 mA (pulsed at 1 ms,
10% duty cycle max)
−40°C to +85°C
−65°C to +150°C
150°C
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
Only one absolute maximum rating may be applied at any one
time.
30°C/W
300°C
260°C
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on
the human body and test equipment and can discharge without detection. Although this product features
proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy
electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance
degradation or loss of functionality.
Rev. 0 | Page 9 of 24
ADG791A/ADG791G
PIN 1
INDICATOR
ADG791A
TOP VIEW
(Not to Scale)
18
17
16
15
14
13
A2
NC
NC
NC
NC
NC
S1A
S1B
D1
D2
S2B
S2A
PIN 1
INDICATOR
ADG791G
A2
NC
GPO1
NC
NC
NC
7
8
9
10
11
12
TOP VIEW
(Not to Scale)
18
17
16
15
14
13
06033-004
S3A
S3B
D3
D4
S4B
S4A
S3A
S3B
D3
D4
S4B
S4A
NOTES
1. NC = NO CONNECT.
2. THE EXPOSED PAD MUST BE TIED TO GND.
1
2
3
4
5
6
NOTES
1. NC = NO CONNECT.
2. THE EXPOSED PAD MUST BE TIED TO GND.
Figure 3. ADG791G Pin Configuration
06033-003
1
2
3
4
5
6
7
8
9
10
11
12
S1A
S1B
D1
D2
S2B
S2A
24
23
22
21
20
19
24
23
22
21
20
19
GND
VDD
SDA
SCL
A0
A1
GND
VDD
SDA
SCL
A0
A1
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
Figure 4. ADG791A Pin Configuration
Table 5. ADG791A/ADG791G Pin Function Descriptions
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Mnemonic
S1A
S1B
D1
D2
S2B
S2A
S3A
S3B
D3
D4
S4B
S4A
NC
NC
NC
NC/GPO1
NC
A2
A1
A0
SCL
22
23
24
SDA
VDD
GND
Description
A-Side Source Terminal for Mux 1. Can be an input or output.
B-Side Source Terminal for Mux 1. Can be an input or output.
Drain Terminal for Mux 1. Can be an input or output.
Drain Terminal for Mux 2. Can be an input or output.
B-Side Source Terminal for Mux 2. Can be an input or output.
A-Side Source Terminal for Mux 2. Can be an input or output.
A-Side Source Terminal for Mux 3. Can be an input or output.
B-Side Source Terminal for Mux 3. Can be an input or output.
Drain Terminal for Mux 3. Can be an input or output.
Drain Terminal for Mux 4. Can be an input or output.
B-Side Source Terminal for Mux 4. Can be an input or output.
A-Side Source Terminal for Mux 4. Can be an input or output.
Not Internally Connected.
Not Internally Connected.
Not Internally Connected.
Not Internally Connected for ADG791A/General-Purpose Logic Output 1 for ADG791G.
Not Internally Connected.
Logic Input. Sets Bit A2 from the least significant bit of the 7-bit slave address.
Logic Input. Sets Bit A1 from the least significant bit of the 7-bit slave address.
Logic Input. Sets Bit A0 from the least significant bit of the 7-bit slave address.
Digital Input, Serial Clock Line. Open-drain input that is used in conjunction with SDA to clock data into
the device. External pull-up resistor required.
Digital I/O. Bidirectional, open-drain data line. External pull-up resistor required.
Positive Power Supply Input.
Ground (0 V) Reference.
Rev. 0 | Page 10 of 24
ADG791A/ADG791G
TYPICAL PERFORMANCE CHARACTERISTICS
3.0
4.0
VDD = 3.3V, RL = 1MΩ
TA = 25°C
1 CHANNEL
2.5
VDD = 5.0V
VDD = 4.5V
VDD = 5.5V
3.0
VDD = 3.3V, RL = 75Ω
2.5
RON (Ω)
OUTPUT SIGNAL (V)
VDD = 2.7V, RL = 1MΩ
2.0
TA = 25°C
1 CHANNEL
3.5
VDD = 3V, RL = 1MΩ
VDD = 3V, RL = 75Ω
1.5
VDD = 2.7V, RL = 75Ω
2.0
1.5
1.0
1.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
INPUT SIGNAL (V)
0
0
2.0
2.5
3.0
1.6
7
TA = 25°C
1 CHANNEL
6 VDD = 3V
TA = +85°C
5
3.5
VDD = 5V, RL = 75Ω
3.0
RON (Ω)
OUTPUT SIGNAL (V)
4.0
1.5
Figure 8. On Resistance vs. VD (VS), 5 V Supply
VDD = 5.5V, RL = 1MΩ
VDD = 5V, RL = 1MΩ
VDD = 5.5V, RL = 75Ω
VDD = 4.5V, RL = 1MΩ
4.5
1.0
VD (VS) (V)
Figure 5. Analog Signal Range, 3 V Supply
5.0
0.5
06033-008
0.5
06033-009
0
06033-005
0
0.5
VDD = 4.5V, RL = 75Ω
2.5
2.0
4
TA = –40°C
3
TA = +25°C
1.5
2
1.0
1
0.5
0
1
2
3
4
6
5
INPUT SIGNAL (V)
0
06033-006
0
TA = 25°C
1 CHANNEL
VDD = 3.0V
5
0.6
0.8
1.0
TA = +25°C
1 CHANNEL
VDD = 5V
4.0
VDD = 2.7V
1.2
1.4
TA = +85°C
TA = +25°C
3.5
4
TA = –40°C
3.0
RON (Ω)
VDD = 3.3V
3
2.5
2.0
1.5
2
1.0
1
0
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
VD (VS) (V)
Figure 7. On Resistance vs. VD (VS), 3 V Supply
1.6
1.8
0
0
0.5
1.0
1.5
VD (VS) (V)
2.0
2.5
3.0
06033-010
0.5
06033-007
RON (Ω)
0.4
Figure 9. On Resistance vs. VD (VS) for Various Temperatures, 3 V Supply
4.5
TA = 25°C
1 CHANNEL
0.2
VD (VS) (V)
Figure 6. Analog Signal Range, 5 V Supply
6
0
Figure 10. On Resistance vs. VD (VS) for Various Temperatures, 5 V Supply
Rev. 0 | Page 11 of 24
ADG791A/ADG791G
0
0
TA = 25°C
–0.5
VDD = 3V
–20
–1.0
VDD = 5V
–1.5
CROSSTALK (dB)
CHARGE INJECTION (pC)
TA = 25°C
VDD = 3V/5V
–2.0
–2.5
–3.0
–3.5
–4.0
SAME
MULTIPLEXER
–40
–60
DIFFERENT
MULTIPLEXER
–80
–100
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
SOURCE VOLTAGE (V)
–120
0.01
06033-011
–5.0
0.1
1
10
1000
100
FREQUENCY (MHz)
Figure 11. Charge Injection vs. Source Voltage
06033-014
–4.5
Figure 14. Crosstalk vs. Frequency
220
–1
210
–3
TA = 25°C
VDD = 5V
tOFF (3V)
190
tON (5V)
–20
–9
0
–13
20
40
60
80
TEMPERATURE (°C)
–15
0.01
0.1
100
1000
1000
Figure 15. Bandwidth
0
TA = 25°C
–10 1 CHANNEL
VDD = 3V/5V
–20 NO DECOUPLING CAPACITORS USED
TA = 25°C
VDD = 3V/5V
–20
–30
PSRR (dB)
–40
–60
–80
–40
–50
–60
–70
–80
–100
–90
–120
0.01
0.1
1
10
100
FREQUENCY (MHz)
1000
06033-013
OFF ISOLATION (dB)
10
FREQUENCY (MHz)
Figure 12. tON/tOFF vs. Temperature
0
1
06033-015
160
–40
–7
–11
tOFF (5V)
170
–5
06033-016
180
06033-012
tON/tOFF (ns)
ATTENUATION (dB)
tON (3V)
200
Figure 13. Off Isolation vs. Frequency
–100
0.0001
0.001
0.01
0.1
1
10
FREQUENCY (MHz)
Figure 16. PSRR vs. Frequency
Rev. 0 | Page 12 of 24
100
ADG791A/ADG791G
0.40
6
TA = 25°C
0.35
TA = 25°C
5
0.30
VDD = 5V
GPO VOLTAGE (V)
VDD = 5V
IDD (mA)
0.25
0.20
0.15
VDD = 3V
4
3
VDD = 3V
2
0.10
1.1
1.6
2.1
2.6
3.1
0
–20
fCLK FREQUENCY (MHz)
–18
–16
–12
–10
–8
–6
–4
0
35
–2
LOAD CURRENT (mA)
Figure 17. IDD vs. fCLK Frequency
1.4
–14
06033-020
0.6
06033-017
0
0.1
06033-021
1
0.05
Figure 20. GPO VOH vs. Load Current
2.5
TA = 25°C
TA = 25°C
1.2
VDD = 5V
VDD = 3V
2.0
VDD = 5V
GPO VOLTAGE (V)
1.0
IDD (mA)
0.8
0.6
0.4
VDD = 3V
0.2
1.5
1.0
0.5
–0.2
0
1
2
3
4
6
5
I2C LOGIC INPUT VOLTAGE (V)
06033-018
0
Figure 18. IDD vs. I2C Logic Input Voltage (SDA, SCL)
tPHL (3V)
tPLH (5V)
105
tPLH (3V)
100
95
–40
–20
0
20
40
60
80
TEMPERATURE (°C)
06033-019
PROPAGATION DELAY (ns)
115
tPHL (5V)
0
5
10
15
20
25
LOAD CURRENT (mA)
Figure 21. GPO VOL vs. Load Current
120
110
0
Figure 19. I2C to GPO Propagation Delay vs. Temperature
(ADG791G Only)
Rev. 0 | Page 13 of 24
30
ADG791A/ADG791G
TEST CIRCUITS
VDD
0.1µF
IDS
NETWORK
ANALYZER
SA
50Ω
V1
S
50Ω
VS
SB
D
50Ω
VOUT
D
VS
06033-022
RON = V1/IDS
50Ω
06033-027
GND
Figure 25. Bandwidth
Figure 22. On Resistance
VDD
0.1µF
NETWORK
ANALYZER
IS (OFF)
A
S
D
ID (OFF)
50Ω
S
A
50Ω
VD
06033-023
50Ω
VS
VS
50Ω
D
VOUT
50Ω
06033-028
GND
Figure 26. Off Isolation
Figure 23. Off Leakage
VDD
0.1µF
NETWORK
ANALYZER
D
VD
NC = NO CONNECT
50Ω
50Ω
VS
A
SY
06033-024
50Ω
VOUT
RL
50Ω
DY
DX
GND
Figure 24. On Leakage
50Ω
50Ω
Figure 27. Channel-to-Channel Crosstalk
Rev. 0 | Page 14 of 24
06033-029
NC
S
SX
ID (ON)
ADG791A/ADG791G
CLOCK PULSES
CORRESPONDING TO THE
LDSW BITS
SCL
50%
5V
50%
90%
0.1µF
10%
VOUT
VDD
S
tON
VOUT
D
RL
50Ω
VS
CL
35pF
CLOCK PULSES
CORRESPONDING TO THE
LDSW BITS
I2C
INTERFACE
SCL
50%
50%
SCL
90%
GND
10%
VGPO
tH
06033-025
SDA
tOFF
tL
Figure 28. Switching Time
5V
CLOCK PULSE
CORRESPONDING
TO THE LDSW BIT
0.1µF
VDD
SA
SB
RL
50Ω
VOUT
CL
35pF
80%
VS
I2C
INTERFACE
SCL
06033-026
SDA
tD
GND
Figure 29. Break-Before-Make Time Delay
5V
VDD
RS
S
SWITCH ON
D
VOUT
CL
1nF
VS
ΔVOUT
SWITCH OFF
GND
Figure 30. Charge Injection
Rev. 0 | Page 15 of 24
QINJ = CL × ΔVOUT
06033-030
VS
SCL
VOUT
D
ADG791A/ADG791G
TERMINOLOGY
On Resistance (RON)
The series on-channel resistance measured between the S and
D pins.
Total Harmonic Distortion + Noise (THD + N)
The ratio of the harmonic amplitudes plus noise of a signal to
the fundamental.
On Resistance Match (ΔRON)
The channel-to-channel matching of on resistance when
channels are operated under identical conditions.
−3 dB Bandwidth
The frequency at which the output is attenuated by 3 dB.
On Resistance Flatness (RFLAT(ON))
The variation of on resistance over the specified range produced
by the specified analog input voltage change with a constant
load current.
Channel Off Leakage (IOFF)
The sum of leakage currents into or out of an off channel input.
Channel On Leakage (ION)
The current loss/gain through an on-channel resistance,
creating a voltage offset across the device.
Off Isolation
The measure of unwanted signal coupling through an off switch.
Crosstalk
The measure of unwanted signal that is coupled through from
one channel to another as a result of parasitic capacitance.
Charge Injection
The measure of the glitch impulse transferred from the digital
input to the analog output during on/off switching.
Differential Gain Error
Input Leakage Current (IIN, IINL, IINH)
The current flowing into a digital input when a specified low
level or high level voltage is applied to that input.
Input/Output Off Capacitance (COFF)
The capacitance between an analog input and ground when the
switch channel is off.
Input/Output On Capacitance (CON)
The capacitance between the inputs or outputs and ground
when the switch channel is on.
The measure of how much color saturation shift occurs when
the luminance level changes. Both attenuation and amplification can occur; therefore, the largest amplitude change between
any two levels is specified and expressed in %.
Differential Phase Error
The measure of how much hue shift occurs when the luminance
level changes. It can be a negative or positive value and is expressed
in degrees of subcarrier phase.
Input High Voltage (VINH)
The minimum input voltage for Logic 1.
Digital Input Capacitance (CIN)
The capacitance between a digital input and ground.
Input Low Voltage (VINL)
The maximum input voltage for Logic 0.
Output On Switching Time (tON)
The time required for the switch channel to close. The time is
measured from 50% of the falling edge of the LDSW bit to the
time the output reaches 90% of the final value.
Output High Voltage (VOH)
The minimum output voltage for Logic 1.
Output Off Switching Time (tOFF)
The time required for the switch to open. The time is measured
from 50% of the falling edge of the LDSW bit to the time the
output reaches 10% of the final value.
IDD
Positive supply current.
Output Low Voltage (VOL)
The maximum output voltage for Logic 0.
I2C to GPO Propagation Delay (tH, tL)
The time required for the logic value at the GPO pin to settle
after loading a GPO command. The time is measured from 50%
of the falling edge of the LDSW bit to the time the output
reaches 90% of the final value for high and 10% for low.
Rev. 0 | Page 16 of 24
ADG791A/ADG791G
THEORY OF OPERATION
The ADG791A/ADG791G are monolithic CMOS devices
comprising four 2:1 multiplexers controllable via a standard I2C
serial interface. The CMOS process provides ultralow power
dissipation, yet offers 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 ADG791A/ADG791G an ideal switching
solution for a wide range of TV applications.
3.
Data transmits over the serial bus in sequences of nine
clock pulses (eight data bits followed by an acknowledge
bit). The transitions on the SDA line must occur during the
low period of the clock signal, SCL, and remain stable
during the high period of SCL. Otherwise, a low-to-high
transition when the clock signal is high can be interpreted
as a stop event that ends the communication between the
master and the addressed slave device.
4.
After transferring all data bytes, the master establishes a
stop condition, defined as a low-to-high transition on the
SDA line while SCL is high. In write mode, the master pulls
the SDA line high during the 10th clock pulse to establish a
stop condition. In read mode, the master issues a no
acknowledge for the ninth clock pulse (the SDA line
remains high). The master then brings the SDA line low
before the 10th clock pulse, and then high during the 10th
clock pulse to establish a stop condition.
The switches conduct equally well in both directions when on.
In the off condition, signal levels up to the supplies are blocked.
The integrated serial I2C interface controls the operation of the
switches (ADG791A/ADG791G) and general-purpose logic
pins (ADG791G only).
The ADG791A/ADG791G have many attractive features, such
as the ability to individually control each multiplexer, the option
of reading back the status of any switch. The ADG791G has one
general-purpose logic output pin controllable through the I2C
interface. The following sections describe these features in detail.
I2C SERIAL INTERFACE
The ADG791A/ADG791G are controlled via an I2C-compatible
serial bus interface (refer to the I2C-Bus Specification available
from Philips Semiconductor) that allows the part to operate as a
slave device (no clock is generated by the ADG791A/ADG791G).
The communication protocol between the I2C master and the
device operates as follows:
1.
2.
The master initiates data transfer by establishing a start
condition (defined as a high-to-low transition on the SDA
line while SCL is high). This indicates that an address/data
stream follows. All slave devices connected to the bus
respond to the start condition and shift in the next eight
bits, consisting of a 7-bit address (MSB first) plus an R/W
bit. This bit determines the direction of the data flow
during the communication between the master and the
addressed slave device.
The slave device whose address corresponds to the
transmitted address responds by pulling the SDA line
low during the ninth clock pulse (this is known as the
acknowledge bit).
I2C ADDRESS
The ADG791A/ADG791G has a 7-bit I2C address. The four
most significant bits are internally hardwired while the last
three bits (A0, A1, and A2) are user-adjustable. This allows the
user to connect up to eight ADG791As/ADG791Gs to the same
bus. The I2C bit map shows the configuration of the address.
7-Bit I2C Address Configuration
MSB
1
0
1
0
A2
A1
LSB
A0
WRITE OPERATION
When writing to the ADG791A/ADG791G, the user must
begin with an address byte and R/W bit, after which time the
switch acknowledges that it is prepared to receive data by
pulling SDA low. Data is loaded into the device as a 16-bit word
under the control of a serial clock input, SCL. Figure 31
illustrates the entire write sequence for the ADG791A/
ADG791G. The first data byte (AX7 to AX0) controls the status
of the switches while the LDSW and RESETB bits from the
second byte control the operation mode of the device.
Table 6 shows a list of all commands supported by the
ADG791A/ADG791G with the corresponding byte that needs
to be loaded during a write operation.
At this stage, all other devices on the bus remain idle while
the selected device waits for data to be written to, or read
from, its serial register. If the R/W bit is set high, the
master reads from the slave device. However, if the R/W bit
is set low, the master writes to the slave device.
To achieve the desired configuration, one or more commands
can be loaded into the device. Any combination of the
commands listed in Table 6 can be used with these restrictions:
•
Only one switch from a given multiplexer can be ON at any
given time
•
When a sequence of successive commands affect the same
element (that is, the switch or GPO pin), only the last
command is executed.
Rev. 0 | Page 17 of 24
ADG791A/ADG791G
SCL
START
CONDITION
BY MASTER
A1
A0
R/W
AX7
AX6 AX5 AX4 AX3 AX2 AX1 AX0
X
ADDRESS BYTE
ACKNOWLEDGE
BY SWITCH
ACKNOWLEDGE
BY SWITCH
X
X
X
X
X
RESETB
LDSW
ACKNOWLEDGE
BY SWITCH
Figure 31. Write Operation
Table 6. ADG791A/ADG791G Command List
AX7
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
X1
X1
X1
X1
X1
X1
X1
X1
X1
X1
1
0
0
1
1
AX6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
AX5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
AX4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
AX3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
1
1
AX2
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
AX1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
AX0
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
0
1
1
Addressed Switch
S1A/D1, S2A/D2, S3A/D3, S4A/D4 off
S1A/D1, S2A/D2, S3A/D3, S4A/D4 on
S1B/D1, S2B/D2, S3B/D3, S4B/D4 off
S1B/D1, S2B/D2, S3B/D3, S4B/D4 on
S1A/D1 off
S1A/D1 on
S1B/D1 off
S1B/D1 on
S2A/D2 off
S2A/D2 on
S2B/D2 off
S2B/D2 on
S3A/D3 off
S3A/D3 on
S3B/D3 off
S3B/D3 on
S4A/D4 off
S4A/D4 on
S4B/D4 off
S4B/D4 on
Reserved
Reserved
Reserved
Reserved
Mux 1 disabled (all switches connected to D1 are off )
Mux 2 disabled (all switches connected to D2 are off )
Mux 3 disabled (all switches connected to D3 are off )
Mux 4 disabled (all switches connected to D4 are off )
Reserved
Reserved
GPO1 high for ADG791G/reserved for ADG791A
GPO1 low for ADG791G/reserved for ADG791A
All muxes disabled
Reserved
X = Logic state does not matter.
Rev. 0 | Page 18 of 24
STOP
CONDITION
BY MASTER
06033-031
A2
SDA
ADG791A/ADG791G
LDSW BIT
READ OPERATION
The LDSW bit allows the user to control the way the device
executes the commands loaded during the write operations.
The ADG791A/ADG791G executes all the commands loaded
between two successive write operations that have set the
LDSW bit high.
When reading data back from the ADG791A/ADG791G, the
user must begin with an address byte and R/W bit. The switch
then acknowledges that it is prepared to transmit data by
pulling SDA low. Following this acknowledgement, the
ADG791A/ADG791G transmits two bytes on the next clock
edges. These bytes contain the status of the switches, and each
byte is followed by an acknowledge bit. A logic high bit
represents a switch in the on (close) state while a low represents
a switch in the off (open) state. For the GPO pin (ADG791G
only), the bit represents the logic value of the pin. Figure 32
illustrates the entire read sequence.
Setting the LDSW high for every write cycle ensures that the
device executes the command right after the LDSW bit was
loaded into the device. This setting can be used when the
desired configuration can be achieved by sending a single
command or when the switches and/or GPO pin are not
required to be updated at the same time. When the desired
configuration requires multiple commands with simultaneous
update, the LDSW bit should be set low while loading the
commands except the last one when the LDSW bit should be set
high. Once the last command with LDSW = high is loaded, the
device executes all commands received since the last update
simultaneously.
The bit maps accompanying Figure 32 show the relationship
between the elements of the ADG791A and ADG791G (that it,
the switches and GPO pins) and the bits that represent their
status after a completed read operation.
POWER ON/SOFTWARE RESET
The ADG791A/ADG791G has a software reset function
implemented by the RESETB bit from the second data byte
written to the device. For normal operation of the multiplexers
and GPO pin, this bit should be set high. When RESETB = low or
after power-up, the switches from all multiplexers are turned off
(open) and the GPO pin is set low.
ADG791A Bit Map
RB15
S1A/D1
RB14
S1B/D1
RB13
S2A/D2
RB12
S2B/D2
RB11
S3A/D3
RB10
S3B/D3
RB9
S4A/D4
RB8
S4B/D4
RB7
-
RB6
-
RB5
-
RB4
-
RB3
-
RB2
-
RB1
-
RB0
-
RB12
S2B/D2
RB11
S3A/D3
RB10
S3B/D3
RB9
S4A/D4
RB8
S4B/D4
RB7
-
RB6
-
RB5
-
RB4
-
RB3
GPO1
RB2
-
RB1
-
RB0
-
RB8
RB7
ADG791G Bit Map
RB15
S1A/D1
RB14
S1B/D1
RB13
S2A/D2
A2
SDA
START
CONDITION
BY MASTER
A1
A0
R/W
RB15 RB14 RB13 RB12 RB11 RB10 RB9
ADDRESS BYTE
ACKNOWLEDGE
BY SWITCH
ACKNOWLEDGE
BY SWITCH
Figure 32. ADG791A/ADG791G Read Operation
Rev. 0 | Page 19 of 24
RB6
RB5
RB4
RB3
RB2
RB1
RB0
STOP
CONDITION
BY MASTER
ACKNOWLEDGE
BY SWITCH
06033-032
SCL
ADG791A/ADG791G
EVALUATION BOARD
The ADG791G evaluation kit allows designers to evaluate the
high performance of the device with a minimum of effort.
The evaluation kit includes a printed circuit board populated
with the ADG791G. The evaluation board can be used to
evaluate the performance of both the ADG791A and
ADG791G. It interfaces to the USB port of a PC, or it can be
used as a standalone evaluation board. Software is available with
the evaluation board that allows the user to easily program the
ADG791G through the USB port. Schematics of the evaluation
board are shown in Figure 33 and Figure 34. The software runs
on any PC that has Microsoft® Windows® 2000 or Windows XP
installed.
USING THE ADG791G EVALUATION BOARD
The ADG791G evaluation kit is a test system designed to
simplify the evaluation of the device. Each input/output of the
part comes with a socket specifically chosen for easy
audio/video evaluation. A data sheet is also available and gives
full information on operating the evaluation board.
Rev. 0 | Page 20 of 24
Rev. 0 | Page 21 of 24
C13
10µF
J2-1
VDD
Figure 33. EVAL-ADG791GEB Schematic, USB Controller Section
C3
0.1µF
A
J5
B
SHIELD
J2-2
T4
C6
0.1µF
C7
0.1µF
1
OUT1
2
OUT2
6
SD ERROR 3
GND NR
4
U5
IN1
7
IN2
5
8
C16
0.1µF
C19
0.1µF
T26
C14
10µF
C20
0.1µF
C21
0.1µF
C15
0.1µF
33
34
35
36
37
38
39
40
4
C23
2.2µF
R7
0Ω
3.3V
3.3V
D4
R11
1kΩ
3.3V
6
AGND
8
3
4
5
4
2
C10
22pF
T28
R2
2.2kΩ
1
XTAL1
24MHz
R1
2.2kΩ
SCL_EN
R32
10kΩ
T27
R31
10kΩ
U2
VCC
7
WP
6
SCL
5
VSS SDA
24LC64
1
A0
2
A1
3
A2
4
C22
0.1µF
15
16
18
19
20
21
22
23
24
25
45
46
47
48
49
50
51
52
29
30
31
3.3V
C17
22pF
PB0/FD0
PB1/FD1
PB2/FD2
PB3/FD3
RESET
PB4/FD4
*WAKEUP
PB5/FD5
PB6/FD6
CLKOUT
PB7/FD7
U3
PD0/FD8
CY7C68013-CS P PD1/FD9
D–
PD2/FD10
PD3/FD11
D+
PD4/FD12
PA0/INT0
PD5/FD13
PA1/INT1
PD6/FD14
PA2/*SLOE
PD7/FD15
PA3/*WU2
CTL0/*FLAGA
PA4/FIFOADR0
CTL1/*FLAGB
PA5/FIFOADR1
PA6/*PKTEND CTL2/*FLAGC
PA7/*FLD/SLCS
SDA
RDY0/*SLRD
SCL
RDY1/*SLWR
IFCLK
XTALOUT
RSVD
XTALIN
R10
10kΩ
13
14
1
2
8
5
9
54
44
42
C18
0.1µF
*DENOTES
PROGRAMMABLE
POLARITY.
C9
0.1µF
R6
75Ω
3.3V
3
C8
0.1µF
C4
10µF
R5
75Ω
3.3V
2
1
ADP3303-3.3
C5
0.1µF
3.3V
GND
IO
D+
D–
VBUS
J1
USB-MINI-B
T1
3
7
11
17
27
32
43
55
AVCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
GND
GND
GND
GND
GND
GND
GND
10
12
26
28
41
53
56
3.3V
GND
IN2
D1
S1
S2
D2
IN1
VDD
5
6
7
8
Q2
3.3V
S
G
Q1 D
ADG821
U4
S
G
3.3V
SCL_EN
C2
0.1µF
D
R12
2.2kΩ
R9
2.2kΩ
SCL
SDA
VDD
06033-033
3.3V
ADG791A/ADG791G
GPO2
PHONO_DUAL
GND
2
BOTTOM
3
CASE
TOP
5
CASE
4
1
K6
PHONO_DUAL
K5
GND
2
BOTTOM
4
3
CASE
TOP
5
CASE
1
PHONO_DUAL
GND
2
BOTTOM
3
CASE
TOP
5
CASE
4
1
K4
R24
R23
R22
R21
R20
R19
1
K7
T16 T17
T15
T14
T13
T12
R25
T11
GND
2
BOTTOM
3
CASE
TOP
CASE
PHONO_DUAL
T10
4
5
Rev. 0 | Page 22 of 24
Figure 34. EVAL-ADG791GEB Schematic, Chip Section
R13
PHONO_DUAL
5
CASE
3
TOP
4
CASE
BOTTOM
1
GND
R26
2
T18
K8
R27
T19
12
11
10
9
8
7
T20
25
PADDLE
ADG791G
13
14
15
16
17
18
K3
R14
R15
T22 T23
6
5
4
3
2
1
R29
PHONO_DUAL
5
CASE
3
TOP
4
CASE
BOTTOM
1
GND
2
R36
0Ω
19
20
21
22
23
24
T21
U1
R34
0Ω
K2
R16
R35
0Ω
R17
A
GPO1
CASE
A
CASE
R28
K9
GND
2
BOTTOM
3
CASE
TOP
T3
GND
2
BOTTOM
3
CASE
TOP
T2
1
4
5
PHONO_DUAL
1
4
5
PHONO_DUAL
R30
PHONO_DUAL
5
CASE
3
TOP
4
CASE
BOTTOM
1
GND
T24
2
T7
K1
T8
T25
R18
T9
R3
10kΩ
J3
R4
10kΩ
J7
J6-2
GPO2
T5
J6-1
J8
GPO1
R8
10kΩ
T6
J4-1
J4-3
SCL
SDA
SCL
C1
0.1µF
SDA
J6-3
J4-2
SCL
SDA
VDD
06033-034
ADG791A/ADG791G
ADG791A/ADG791G
OUTLINE DIMENSIONS
0.60 MAX
4.00
BSC SQ
PIN 1
INDICATOR
0.60 MAX
TOP
VIEW
0.50
BSC
3.75
BSC SQ
0.50
0.40
0.30
1.00
0.85
0.80
12° MAX
SEATING
PLANE
0.80 MAX
0.65 TYP
0.30
0.23
0.18
PIN 1
INDICATOR
24 1
19
18
*2.45
2.30 SQ
2.15
EXPOSED
PAD
(BOTTOMVIEW)
13
12
7
6
0.23 MIN
2.50 REF
0.05 MAX
0.02 NOM
0.20 REF
COPLANARITY
0.08
*COMPLIANT TO JEDEC STANDARDS MO-220-VGGD-2
EXCEPT FOR EXPOSED PAD DIMENSION
Figure 35. 24-Lead Lead Frame Chip Scale Package [LFCSP_VQ]
4 mm x 4 mm Body, Very Thin Quad
(CP-24-2)
Dimensions shown in millimeters
ORDERING GUIDE
Model
ADG791ABCPZ-REEL 1
ADG791ABCPZ-500RL71
ADG791ACCPZ-REEL1
ADG791ACCPZ-500RL71
ADG791GBCPZ-REEL1
ADG791GBCPZ-500RL71
ADG791GCCPZ-REEL1
ADG791GCCPZ-500RL71
EVAL-ADG791GEB 2
1
2
Temperature Range
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
−40°C to +85°C
I2C Speed
100 kHz, 400 kHz
100 kHz, 400 kHz
100 kHz, 400 kHz, 3.4 MHz
100 kHz, 400 kHz, 3.4 MHz
100 kHz, 400 kHz
100 kHz, 400 kHz
100 kHz, 400 kHz, 3.4 MHz
100 kHz, 400 kHz, 3.4 MHz
Z = Pb-free part.
Evaluation board is RoHS compliant.
Rev. 0 | Page 23 of 24
Package Description
24-Lead LFCSP_VQ
24-Lead LFCSP_VQ
24-Lead LFCSP_VQ
24-Lead LFCSP_VQ
24-Lead LFCSP_VQ
24-Lead LFCSP_VQ
24-Lead LFCSP_VQ
24-Lead LFCSP_VQ
Evaluation Board
Package Option
CP-24-2
CP-24-2
CP-24-2
CP-24-2
CP-24-2
CP-24-2
CP-24-2
CP-24-2
ADG791A/ADG791G
NOTES
Purchase of licensed I2C components of Analog Devices or one of its sublicensed Associated Companies conveys a license for the purchaser under the Philips I2C Patent
Rights to use these components in an I2C system, provided that the system conforms to the I2C Standard Specification as defined by Philips.
©2006 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D06033-0-7/06(0)
Rev. 0 | Page 24 of 24
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