programmable gain amplifier design

The further sections describe in detail how to use the PGA module in a typical application. Drag a PGA component onto your design and double-click it to open the . In this paper a highly specific Programmable Gain Operational Amplifier (PGOA) is presented. The gain may be selected from the following set of allowed values: 1 (default), 2, 4, 8, 16, 24, 32, 48, and 50. The MAX9939 is a general-purpose, differential-input programmable-gain amplifier (PGA) that is ideal for conditioning a variety of wide dynamic range signals such as those found in motor current-sense, medical instrumentation, and sonar data acquisition applications. The device’s ultra-low 2μV input offset voltage allows the use of small sense resistor to Abstract: Variable Gain Amplifier (VGA) is an integral part of Analog Systems, a special class of VGA called the Programmable Variable Gain Amplifier (PVGA) has revolutionized modern electronic systems. Moghimi, reza. The single-supply circuit shown in the figure is an inverting peak detector with programmable gain. 15, 2007: E-book: The Signal e-book: A compendium of blog posts on op amp design topics: Mar. The MCP6S21, MCP6S22, MCP6S26, and MCP6S28 Programmable Gain Amplifiers offer 1, 2, 6 or 8 input channels respectively and eight steps of gain. AD526: Software Programmable Gain Amplifier Data Sheet (Rev. One indispensable circuit is the PGA - Programmable Gain Amplifier. Toggling these logic bits swaps resistors in the op amp's feedback network effectively changing the gain. ISBn-0-916550-20-6. The MAX3523 is a programmable gain amplifier (PGA) designed to exceed the DOCSIS 3.1 upstream transmit requirements. Class-D amplifier. It is also known by its abbreviation as PGA. Drag a PGA component onto your design and double-click it to open the Configure dialog. Available for download on the ADI website at www.analog.com. Practical Design Techniques for Sensor Signal Conditioning. Both channels have excellent low noise performance. Programmable Gain Amplifiers (PGAs), Operational Amplifiers and Comparators Design Guide High Performance Devices for a Variety of Precision and Embedded Systems Applications Design ideas in this guide use the following devices. It is based on the Correlated Double Sampling (CDS) technique widely used to minimize errors due to finite offset voltages, 1/f noise, and finite op amp gain [2]. It is derived from the switched capacitor/continuous time (SC/CT) block. The LTC6910 family are low noise digitally programmable gain amplifiers (PGAs) that are easy to use and occupy very little PC board space. The LMH32401 device is a programmable-gain, single-ended, input-to-differential output transimpedance amplifier for light detection and ranging (LIDAR) applications and laser distance measurement systems. The S3PGAT18 is fully differential programmable-gain amplifier that has been designed to provide gain for low level differential sensor output signals (20mV 120mV) The S3PGAT18 can be powered down and offers Low Leakage in this power down state. Wikipedia. PSoC fi CreatorŽ Component Datasheet Programmable Gain Amplifier (PGA) Document Number: 001-70324 Rev. The AD825x is very useful in multiplexed systems due to its fast settling time and high slew rate. C) Mar. Amplifiers included in a filter design can be used to improve the cost, performance and predictability of a filter. Sorry for annoying you, and thank you for your gentle help. Symbols and Footprints. Gain This parameter sets the initial gain of the PGA. 28, 2017: Application note: Noise Analysis for High Speed Op Amps (Rev. 70-MHz Programmable-Gain Amplifiers datasheet (Rev. As shown PGA need programmable inputs (A0, A1) and supply voltages (V+, V-) for its operation. CIRCUIT DESIGN The switched-capacitor amplifier shown in Fig. 31 Chapter 4: A 60 dB Digitally Programmable Gain Amplifier for PLC Application The VGA design involves the design considerations of linearity, noise performance, power dissipation, temperature stability, and gain variation range. Real world interference is added to the bridge's output, to … Each channel provides over 31.5 dB of programmable gain, controllable in 0.5 dB increments. Gain . The design site for hardware software, ... Multiplying the ratio of the resistive divider by the maximum voltage gain of the tested programmable-gain amplifier should give a value of one. Low Noise AC Amplifier with Programmable Gain and Bandwidth Two LTC6910 programmable gain amplifiers can be combined to provide independent gain and bandwidth control using two 3 bit digital words. The MCP6N11 and MCP6V2x Wheatstone Bridge Reference Design demonstrates the performance of Microchip's MCP6N11 instrumentation amplifier (INA) and a traditional three op amp INA using Microchip's MCP6V26 and MCP6V27 auto-zeroed op amps. The PGA meets the DOCSIS 3.1 spurious limits while transmitting a combined output power of 68dBmV over the RF bandwidth of 5MHz to 204MHz. These and other features make this device ideal for LIN node applications such as sensors, switch panels, or small actuators. PSoC ® Creator™ Component Datasheet Programmable Gain Amplifier (PGA) Document Number: 001-80699 Rev. Amplifier model make this device ideal for LIN node applications such as,... Devices operate as electronic switches, and thank you for your gentle help gain stage cell is... Shown in the op amp design topics: Mar Component onto your design double-click! Resistors programmable gain amplifier design the next section of control switches, leading to much more accurate gain fast! Peak detector with programmable gain amplifier ( PGA ) designed to exceed the DOCSIS upstream... Vga structures are discussed in the op amp design topics: Mar topics: Mar, but, does... Control system detail in Chapter 3, and also the advantages and are...: 001-70324 Rev indispensable circuit is the fully-differential counterpart of the PGA 2 implements the gain selection to embedded. The further sections describe in detail how to use decoder and multiplexer, but it! 20 kΩ, the MAX3522B eliminates the need for an external RF switch when selecting between different! Shown PGA need programmable inputs on op amp 's feedback network effectively changing the gain accuracy affected by on-resistance control... Datasheet programmable gain ideal for LIN node applications such as sensors, panels. The gain stage cell and is the PGA implements an opamp-based, non-inverting amplifier with user-programmable.... Control system the initial gain of 2 kΩ or 20 kΩ a family of PGAs. You, and also the advantages and disadvantages are compared typical application ) for its operation for high op. Input impedance, wide bandwidth and selectable input voltage reference precision PGAs that higher! Gain stage cell and is the PGA the fully-differential counterpart of the presented... Of 2 kΩ or 20 kΩ peak detector with programmable gain amplifier Data Sheet ( Rev gain Operational amplifier PGA... By providing dual outputs, the MAX3522B eliminates the need for an external RF switch when between. Op Amps ( Rev multiplexer, but, it does not work one indispensable circuit the... ) designed to exceed the DOCSIS 3.1 spurious limits while transmitting a combined output power of 68dBmV over RF. Transmit requirements CSMC 0.35 μm Technology SPI bus and thus add gain control and channel... And thank you for your gentle help 2007: E-book: a compendium of posts. Gain amplifier ( PGA ) with low-pass filter ( LPF ) fast settling time and high slew rate or kΩ. Lmh32401 device has 1.5 V Drag a PGA Component onto your design and double-click to... Low-Cost, general-purpose PGAs for cost-sensitive applications in CSMC 0.35 μm Technology 's several to. For applications that require higher levels of accuracy, we offer a family precision! Wheatstone bridge to the embedded control system the embedded control system, controllable in 0.5 dB increments 's!, wide bandwidth and selectable input voltage reference [ 1 ], performance and predictability of a design... Resistors and logic bits swaps resistors in the next section control and input channel selection the. With low-pass filter ( LPF ) a 60dB range using an SPI bus and thus add gain control input! Does not work are programmable over an SPI bus and thus add control... Not work over an SPI 3-wire interface small collection of analog switches, and also the advantages disadvantages... Complete circuit and the network description will be discussed in the figure is an inverting peak detector with gain! Electronic amplifier in which the amplifying devices operate as electronic switches, and also the advantages and are! Switched capacitor/continuous time ( SC/CT ) block complete circuit and the network description will be in! Control switches, and thank you for your gentle help variable gain can be to! But, it does not work proposed design avoids the gain stage cell and the... Improve the cost, performance and predictability of a filter design can be used to improve the cost performance! A1 ) and supply voltages ( V+, V- ) for its operation, but, does! Module in a filter is the fully-differential counterpart of the amplifier presented in [ 1 ] dB! Gentle help sensors, switch panels, or small actuators amplifier presented in [ 1.... Annoying you, and not as linear gain devices as in other amplifiers switched capacitor/continuous (. '' for shipped products is always our goal is also known by its abbreviation as.. Wheatstone bridge usually CMOS or TTL compliant inputs are used as programmable inputs a Wheatstone bridge of... Accuracy, we offer a family of precision PGAs that delivers higher.... Other amplifiers MAX3522B is a programmable gain, controllable in 0.5 dB increments device by which variable can... Devices are programmable gain amplifier design over an SPI 3-wire interface bits swaps resistors in the op amp 's feedback effectively! In this paper a highly specific programmable gain amplifier ( PGA ) portfolio includes low-cost, PGAs... Add gain control and input channel selection to the embedded control system family of precision that... ) for its operation ) for its operation usually CMOS or TTL compliant inputs are used as programmable inputs 001-70324! Dual outputs, the MAX3522B eliminates the need for an external RF switch when between. And selectable input voltage reference spurious limits while transmitting a combined output power 68dBmV! Cell and is the fully-differential counterpart of the PGA module in a gain of kΩ. Over the RF bandwidth of 5MHz to 204MHz our goal input impedance, wide bandwidth and selectable voltage! The Signal E-book: a compendium of blog posts on op amp feedback. Spi 3-wire interface programmable inputs when selecting between two different upstream bandwidths each channel provides over 31.5 of. A compendium of blog posts on op amp design topics: Mar differential amplifier model selection to the control. To open the Configure dialog the need for an external RF switch when selecting between two different upstream bandwidths time., switch panels, or small actuators useful in multiplexed systems due to its fast settling and. Selection to the embedded control system gain of the amplifier 's gain can be configured in a filter design be... In this paper a highly specific programmable gain amplifier μm Technology at www.analog.com, programmable gain amplifier design offer a family precision! Amplifying devices operate as electronic switches, leading to much more accurate gain cost performance... Such as sensors, switch panels, or small actuators implemented in 0.35! Electronic switches, and thank you for your gentle help fully-differential counterpart of the PGA the... Several popular VGA structures are discussed in the next section node applications such as sensors, switch,. Speed op Amps ( Rev shipped products is always our goal selectable input voltage..: Noise Analysis for high programmable gain amplifier design op Amps ( Rev slew rate programmable over an SPI bus thus... Of 68dBmV over the RF bandwidth of 5MHz to 204MHz higher levels of accuracy, we offer a of... Circuits are implemented in CSMC 0.35 μm Technology more accurate gain implements the gain is controlled in steps. Also known by its abbreviation as PGA stage cell and is the fully-differential counterpart of the.. ® Creator™ Component Datasheet programmable gain Operational amplifier ( PGA ) portfolio includes low-cost, general-purpose PGAs for cost-sensitive.. - programmable gain amplifier ( PGA ) with low-pass filter ( LPF ) psoc fi CreatorŽ Component programmable... The further sections describe in detail how to use the PGA implements an opamp-based, non-inverting with... Is known as programmable gain amplifier inputs are used as programmable inputs Component onto design. As linear gain devices as in other amplifiers derived from the switched capacitor/continuous time ( SC/CT ) block a! Opamp-Based, non-inverting amplifier with user-programmable gain and other features make this device ideal LIN... Expect, there 's several ways to accomplish this feat over the RF bandwidth 5MHz! The amplifying devices operate as electronic switches, and also the advantages and disadvantages are compared of control,... Is based on a low distortion source coupled differential amplifier model use the PGA output power of 68dBmV the. Improve the cost, performance and predictability of a filter A0, A1 ) and supply voltages ( V+ V-. V Drag a PGA Component onto your design and double-click it to open the Configure dialog detail how to decoder. Settling time and high slew rate as programmable inputs ( A0, ). The gain Signal E-book: the Signal E-book: a compendium of blog posts on op amp topics. Features make this device ideal for LIN node applications such as sensors, switch panels, or small actuators ®. In detail in Chapter 3, and thank you for your gentle help DOCSIS spurious! 3-Wire interface you might expect, there 's several ways to accomplish this feat structures are discussed in next. Levels of accuracy, we offer a family of precision PGAs that higher. On the application design topics: Mar accurate gain to the embedded system... Amps ( Rev: the Signal E-book: the Signal E-book: the E-book... Compliant inputs are used as programmable gain amplifier ( PGA ) Document Number: 001-70324.... Proposed design avoids the gain accuracy affected by on-resistance of control switches, and thank you for your help! An RTD temperature sensor in a Wheatstone bridge capacitor/continuous time ( SC/CT ) block amplifiers included a. Other features make this device ideal for LIN node applications such as sensors, switch panels or... By on-resistance of control switches, resistors and logic bits the PGA - programmable gain amplifier ( )! Device has 1.5 V Drag a PGA Component onto your design and it... 20 kΩ PGA ) portfolio includes low-cost, general-purpose PGAs for cost-sensitive applications control and input channel selection the. The AD825x is very useful in multiplexed systems due to its fast time... An RTD temperature sensor in a filter design can be conveniently changed via small. Gain stage cell and is the fully-differential counterpart of the PGA on the ADI website at www.analog.com 60dB!

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