adg791a Analog Devices, Inc., adg791a Datasheet
adg791a
Available stocks
Related parts for adg791a
adg791a Summary of contents
Page 1
... 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 supply voltage and is available in a compact 4 mm × body, 24-lead LFCSP. ...
Page 2
... ADG791A/ADG791G TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Product Highlights ........................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... Timing Specifications............................................................ 7 Timing Diagram ........................................................................... 8 Absolute Maximum Ratings............................................................ 9 ESD Caution.................................................................................. 9 Pin Configurations and Function Descriptions ......................... 10 Typical Performance Characteristics ........................................... 11 Test Circuits..................................................................................... 14 REVISION HISTORY 7/06—Revision 0: Initial Version Terminology ...
Page 3
... Figure 100 Ω nF see Figure kHz CCIR330 test signal CCIR330 test signal Rev Page ADG791A/ADG791G 1 Min Typ Max Unit 3.3 V 2.6 3.5 Ω 4 Ω 0.15 0.5 Ω 0.6 Ω ...
Page 4
... ADG791A/ADG791G Parameter 3 LOGIC OUTPUTS SDA Pin Output Low Voltage Floating-State Leakage Current Floating-State Output Capacitance GPO1 Pin and GPO2 Pin Output Low Voltage Output High Voltage POWER REQUIREMENTS All typical values are 25°C, unless otherwise stated. ...
Page 5
... Figure 100 Ω nF see Figure kHz CCIR330 test signal CCIR330 test signal Rev Page ADG791A/ADG791G 1 Min Typ Max Unit Ω 6 Ω 0.15 0.6 Ω 1.1 Ω ...
Page 6
... ADG791A/ADG791G Parameter 3 LOGIC OUTPUTS SDA Pin Output Low Voltage Floating-State Leakage Current Floating-State Output Capacitance GPO1 Pin and GPO2 Pin Output Low Voltage Output High Voltage POWER REQUIREMENTS All typical values are 25°C, unless otherwise stated. ...
Page 7
... SU;STO μs ns 1000 rise time of SDA signal RDA 300 160 ns 300 fall time of SDA signal FDA 300 160 ns 1000 rise time of SCL signal RCL 300 Rev Page ADG791A/ADG791G ...
Page 8
... ADG791A/ADG791G 1 Parameter Conditions Min t Standard mode 11A Fast mode 20 + 0.1 C High speed mode C = 100 pF max 400 pF max Standard mode 12 Fast mode 20 + 0.1 C High speed mode C = 100 pF max 400 pF max Fast mode 0 SP High speed mode 0 1 Guaranteed by initial characterization. C ...
Page 9
... V or other conditions above those indicated in the operational DD 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. Rev Page ADG791A/ADG791G ...
Page 10
... Not Internally Connected Not Internally Connected Not Internally Connected. 16 NC/GPO1 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. ...
Page 11
... R = 75Ω 4.5V 75Ω 25° CHANNEL Figure 9. On Resistance vs 3. 3.3V DD 1.2 1.4 1.6 1 Supply Figure 10. On Resistance vs Rev Page ADG791A/ADG791G 4 25° CHANNEL 3 4.5V DD 3.0 2.5 2.0 1.5 1.0 0 0.5 1.0 1 Figure 8. On Resistance vs Supply ...
Page 12
... ADG791A/ADG791G 25°C A –0 –1.0 –1.5 –2.0 –2.5 –3.0 –3.5 –4.0 –4.5 –5.0 0 0.5 1.0 1.5 2.0 SOURCE VOLTAGE (V) Figure 11. Charge Injection vs. Source Voltage 220 210 t ON 200 190 180 t (5V 170 (5V) OFF 160 –40 – TEMPERATURE (°C) Figure 12 vs. Temperature ...
Page 13
... C to GPO Propagation Delay vs. Temperature (ADG791G Only 3.1 –20 2.5 T 2.0 1.5 1.0 0 (3V) (3V Rev Page ADG791A/ADG791G = 25° –18 –16 –14 –12 –10 –8 –6 –4 LOAD CURRENT (mA) Figure 20. GPO V vs. Load Current OH = 25° ...
Page 14
... ADG791A/ADG791G TEST CIRCUITS V1 Figure 22. On Resistance I (OFF Figure 23. Off Leakage CONNECT Figure 24. On Leakage I (OFF (ON Rev Page 0.1µF NETWORK ANALYZER SA 50Ω 50Ω 50Ω ...
Page 15
... ON V OUT C CLOCK PULSES L CORRESPONDING TO THE 35pF LDSW BITS SCL 50% 50% 90% 10% V GPO CLOCK PULSE CORRESPONDING TO THE LDSW BIT SCL V OUT V OUT SWITCH ON ΔV SWITCH OFF OUT V OUT × ΔV L INJ L OUT 1nF ADG791A/ADG791G t OFF 80% ...
Page 16
... ADG791A/ADG791G TERMINOLOGY On Resistance ( The series on-channel resistance measured between the S and D pins. On Resistance Match (Δ The channel-to-channel matching of on resistance when channels are operated under identical conditions. On Resistance Flatness (R ) FLAT(ON) The variation of on resistance over the specified range produced by the specified analog input voltage change with a constant load current ...
Page 17
... I C ADDRESS 2 C The ADG791A/ADG791G has a 7-bit I 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 2 C-compatible bus. The I 2 7-Bit I C Address Configuration MSB ...
Page 18
... 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 Rev Page CONDITION RESETB ...
Page 19
... Figure 32 illustrates the entire read sequence. 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. ...
Page 20
... 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 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 ...
Page 21
... VCC 55 VCC 43 VCC 32 VCC 27 VCC 17 VCC 11 VCC 7 AVCC 3 Figure 33. EVAL-ADG791GEB Schematic, USB Controller Section Rev Page ADG791A/ADG791G GND 56 GND 53 GND 41 GND 28 GND 26 GND 12 GND 10 06033-033 ...
Page 22
... ADG791A/ADG791G R18 K1 GND 1 BOTTOM 2 CASE 4 TOP 3 CASE 5 PHONO_DUAL R17 0Ω R35 R16 K2 GND 1 BOTTOM 2 CASE 4 TOP 3 CASE 5 R15 PHONO_DUAL R14 K3 GND 1 BOTTOM 2 CASE TOP 4 3 CASE 5 PHONO_DUAL R13 10kΩ 10kΩ 10kΩ 0Ω R34 ...
Page 23
... 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 Rev Page ADG791A/ADG791G 0.60 MAX PIN 1 INDICATOR ...
Page 24
... ADG791A/ADG791G NOTES Purchase of licensed components of Analog Devices or one of its sublicensed Associated Companies conveys a license for the purchaser under the Philips I 2 Rights to use these components system, provided that the system conforms to the I ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners ...