AN231E04 Datasheet Rev 1.0 3rd Generation Dynamically Reconfigurable dpASP This device is RoHS compliant www.anadigm.com DS231000-U001d -1- Disclaimer Anadigm reserves the right to make any changes without further notice to any products herein. Anadigm makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Anadigm assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including with out limitation consequential or incidental damages. "Typical" parameters can and do vary in different applications. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. Anadigm does not in this document convey any license under its patent rights nor the rights of others. Anadigm software and associated products cannot be used except strictly in accordance with an Anadigm software license. The terms of the appropriate Anadigm software license shall prevail over the above terms to the extent of any inconsistency. © Anadigm®, Inc. 2007 All Rights Reserved. DS231000-U001d -2- AN231E04 Datasheet – Dynamically Reconfigurable dpASP PRODUCT AND ARCHITECTURE OVERVIEW The AN231E04 device is an “Analog Signal Processor”; ideally suited to signal conditioning, filtering, gain, rectification, summing, subtracting, multiplying, etc. The device also accommodates nonlinear functions such as sensor response linearization and arbitrary waveform synthesis. The AN231E04 device consists of a 2x2 matrix of fully Configurable Analog Blocks (CABs), surrounded by programmable interconnect resources and analog input/output cells with active elements. On chip clock generator block controls multiple non-overlapping clock domains generated from an external stable clock source. Internal band-gap reference generator is used to create temperature compensated reference voltage levels. The inclusion of an 8x256 bit look-up table enables waveform synthesis and several non-linear functions. Configuration data is stored in an on-chip SRAM configuration memory. An SPI like interface is provided for simple serial load of configuration data from a microprocessor or DSP. This memory is shadowed allowing a different circuit configuration to be loaded as a background task without disrupting the current circuit functionality. The AN231E04 device features seven configurable input/output structures each can be used as input or output, 4 of the 7 have integrated differential amplifiers. There is also a single chopper stabilized amplifier that can be used by 3 of the 7 output cells. Figure 1: Architectural overview of the AN231E04 device Circuit design is enabled using Anadigmdesigner2 software, a high level block diagram based circuitry entry tool. Circuit functions are represented as CAMs (Configurable Analog Modules) these are configurable block which map onto portions of CABs. The software and a development board facilite instant prototyping of any circuit captured in the tool. With dynamic reconfigurability, the functionality of the AN231E04 can be reconfigured in-system by the designer or on-the-fly by a microprocessor. A single AN231E04 can thus be programmed to implement multiple analog functions and/or to adapt on-the-fly to your circuit requirements. PRODUCT FEATURES APPLICATIONS • • • • • • • • • • • • • Dynamic reconfiguration Seven configurable I/O cells, two dedicated output cells Fully differential architecture I/O buffering with single ended to differential conversion Low input offset through chopper stabilized amplifiers 256 Byte Look-Up Table (LUT) for linearization and arbitrary signal generation Typical Signal Bandwidth: DC-2MHz (Bandwidth is CAM dependent) Signal to Noise Ratio: o Broadband 90dB o Narrowband (audio) 120dB Total Harmonic Distortion (THD): 100dB User controlled Compensated low DC offset <250µV DC Offset via chopper stabilized architecture <50uV Package: 44-pin QFN (7x7x0.9mm) o Lead pitch 0.5mm Supply voltage: 3.3V • • • • • • • • • • • • Analog Signal Processing RFID IF (Baseband Filtering) Real-time software control of analog system peripherals Intelligent sensors Adaptive filtering and control Adaptive DSP front-end Adaptive industrial control and automation Self-calibrating systems Compensation for aging of system components Dynamic recalibration of remote systems Ultra-low frequency signal conditioning Custom analog signal processing ORDERING CODES AN231E04-e2-QFNTY AN231E04-e2-QFNTR dpASP Tray (260 /tray, 2600/box) dpASP Tape & Reel (1000 /reel, 4000/box) AN231E04-e2-QFNSP AN231K04-DVLP3 dpASP Sample Pack AN231E04 Development Kit [For more detailed information on the features of the AN231E04 device, please refer to the AN131E04/AN231E04 User Manual] DS231000-U001d -3- AN231E04 Datasheet – Dynamically Reconfigurable dpASP ELECTRICAL CHARACTERISTICS 1 1.1 Absolute Maximum Ratings Parameter DC Power Supplies a Symbol AVDD BVDD DVDD xVDD to yVDD Offset Package Power Dissipation, AN231E04 max power dissipation Input Voltage Ambient Operating Temperature Storage Temperature a Typ Max Unit -0.5 - 3.6 V V 0.5 V -0.5 Pmax 25°C Pmax 85°C - - 4.5 1.8 W dpASPmax - - 0.25 W Vinmax VSS-0.5 - VDD+0.5 V Top -40 - 85 °C Tstg -40 125 °C Comment AVSS, BVSS and DVSS all held to 0.0 V Ideally all supplies should be at the same voltage (Theoretical values based on Tj=125deg.C) Still air, No heatsink, 44 pads and exposed die pad soldered to PCB θja = 22.5°C/W. VDD = 3.3V Maximum power dissipation all resources used, (see section 1.5.13 for more detail). Absolute Maximum DC Power Supply Rating - The failure mode is non-catastrophic for VDD of up to 5 volts, but will cause reduced operating life time. The additional stress caused by higher local electric fields within the CMOS circuitry may induce metal migration, oxide leakage and other time/quality related issues. 1.2 Recommended Operating Conditions Parameter DC Power Supplies b Min Symbol AVDD BVDD DVDD Min 3.0 Typ 3.3 Max 3.6 Unit Comment V AVSS, BVSS and DVSS all held to 0 V Conditional on the circuit which is being driven. This limit is defined as maximum signal amplitude through input Sample and hold cell which results in >-80dB THD+N using a 1KHz test signal. VMR is 1.5 volts above AVSS Analog Input Voltage. Vina VMR -1.375 - VMR +1.375 V Digital Input Voltage Junction Temp b Vind Tj 0 -40 - DVDD 125 V °C Assume a package θja=22.5°C/W To calculate the junction temperature (Tj) you must first empirically determine the current draw (total Idd) for the design. The programmable nature of this device means this can vary by orders of magnitude between different circuit designs. Once the current consumption is established then the following formula can be used; Tj = Ta + Idd x VDD x 22.5 °C/W, where Ta is the ambient temperature. Worst case θja = 22.5 °C/W assumes no air flow and no additional heatsink, 44 pads and the exposed die pad soldered to PCB. 1.3 General Digital I/O Characteristics (VDD = 3.3v +/- 10%, -40 to 85 deg.C) Parameter Input Voltage Low Input Voltage High Output Voltage Low Output Voltage High Symbol Vih Vil Vol Voh Min 0 70 0 80 Typ - Max 30 100 20 100 Unit - Input Leakage Current Iil - - +/-1 µA Max. Capacitive Load Cmax - - 10 pF Min. Resistive Load Rmin 50 - - Kohm ACLK Frequency Fmax - 16 40 MHz Clock Duty Cycle CLKduty 45 - 55 % Comment % of DVDD % of DVDD % of DVDD % of DVDD Some pins have active pull up/down, please see below. Each pins has a specific load driving capability, detailed in sections 1.4 and 1.5 Divide down to <4 MHz prior to use as a CAB clock All clocks DS231000-U001d -4- AN231E04 Datasheet – Dynamically Reconfigurable dpASP 1.4 1.4.1 Digital I/O Characteristics (VDD = 3.3v +/-10%, -40 to 85 deg.C unless commented) Pins ACLK, SCLK, RESETb, CS1b, CS2b, SI, MODE (standard CMOS inputs) Parameter Input Voltage Low Input Voltage High 1.4.2 Symbol Vil Vih Min 0 70 Typ - Max 30 100 Unit % % Comment % of DVDD % of DVDD Comment Load 10pF//50Kohm to VSS Load 10pF//50Kohm to VSS VDD = 3.3 V. Maximum load 100 pF // 5 Kohm at up to 5MHz. Maximum load 100 pF // 5 Kohm at up to 5MHz. Pin shorted to VDD Current should be limited externally so that it does not exceed 3mA Pin shorted to VSS. Current should be limited externally so that it does not exceed 3mA Pin SO, (standard CMOS output) Parameter Output Voltage Low Symbol Vol Min VSS Typ - Max VSS Unit mV Output Voltage High Voh 3.28 - VDD V Max. Capacitive Load Cmax - - 100 pF Min. Resistive Load Rmin 5 - - Kohm Current Sink Isnkmax 60 100 135 mA Current Source Isrcmax 50 80 110 mA 1.4.3 Digital functions of mixed signal Pins IO1, IO2, IO3, IO4, IO5, IO6, IO7, These pins can be configured by the user to be standard CMOS input or outputs. I/O cells 5, 6 and 7 the pin pairs can be connected to and used individually. I/O cells 1 through 4 provide pin pairs for differential (complimentary) digital connections. Parameter Input Voltage Low Input Voltage High Output Voltage Low Symbol Vil Vih Vol Min 0 70 VSS Typ - Max 30 100 VSS Unit % % mV Output Voltage High Voh 3.25 - VDD V Max. Capacitive Load Cmax - - 50 pF Min. Resistive Load Rmin 50 - - Kohm Current Sink Isnkmax 15 30 40 mA Current Source Isrcmax 15 25 35 mA Comment % of DVDD % of DVDD Pin load = 20pF//10K to VSS Pin load = 20pF//10K to VSS VDD = 3.3 V. Maximum load 20 pF // 10 Kohm at up to 4MHz signal Maximum load 20 pF // 10 Kohm at up to 4MHz signal Pin shorted to VDD. Current should be limited externally so that it does not exceed 3mA Pin shorted to VSS. Current should be limited externally so that it does not exceed 3mA. DS231000-U001d -5- AN231E04 Datasheet – Dynamically Reconfigurable dpASP 1.4 Digital I/O Characteristics continued (VDD = 3.3v +/-10%, -40 to 85 deg.C unless commented) 1.4.4 Pins ERRb (Open Drain, CMOS transistor) Parameter Input Voltage Low Input Voltage High Symbol Vil Vih Min 0 70 Typ Max 30 100 Unit % % Output Voltage Low Vol VSS - 7.0 mV Output Voltage High Voh 3.29 - VDD V Max. Capacitive Load Cmax - - 10 pF Min. Resistive Load Rmin 50 - - Kohm Isnkmax 50 - 110 mA Isrcmax Rpullupext 10 10 +/-1 10 µA Kohm Current Sink Current Source External Resistive Pullup 1.4.5 Comment % of DVDD, % of DVDD 10KOhm to VDD VDD = 3.3 V. 10KOhm to VDD VDD = 3.3 V. Maximum load 10 pF // 50 Kohm at full BW Maximum load 10 pF // 50 Kohm at full BW Pin shorted to VDD. Current should be limited externally so that it does not exceed 3mA Pin shorted to VSS MUST be used Pins ACTIVATE, CFGFLGb These pins are Open Drain CMOS transistors, with optional user configurable internal pull-up resistor We also note that the output voltage on these pins is “sensed” by internal circuitry, (see figure 2 below) Parameter Input Voltage Low Input Voltage High Symbol Vil Vih Min 0 70 Typ Max 30 100 Unit % % Output Voltage Low Vol 80 - 140 mV Output Voltage High, internal pull-up. Voh 3.05 - 3.16 V VolE 529 - 773 mV Voh VDD - VDD V Max. Capacitive Load Cmax - - 10 pF Min. Resistive Load Rmin 50 - - Kohm Isnkmax Isrcmax 1.8 0.34 - 3.7 1.1 mA mA Internal Resistive Pullup Rpullupint 3.5 5.3 8.4 Kohm External Resistive Pullup Rpullupext 5 7.5 10 Kohm Output Voltage Low, external pull-up. Output Voltage High Current Sink, pull down only Current Source, pull up only Comment % of DVDD % of DVDD Pin load = Internal pullup + external 10pF//50K to VSS VDD = 3.3 V. Pin load = Internal pullup + external 10pF//50K to VSS VDD = 3.3 V. Pin load = 5K to VSS VDD = 3.3 V. Pin load = 5K + 10pF to VSS Maximum load 10 pF // 50 Kohm at full BW Maximum load 10 pF // 50 Kohm at full BW Pin shorted to VDD. Pin shorted to VSS. Default, not used with external pullup. Optional - to be used only if internal pullup is deselected DS231000-U001d -6- AN231E04 Datasheet – Dynamically Reconfigurable dpASP 1.4 Digital I/O Characteristics continued (VDD = 3.3v +/-10%, -40 to 85 deg.C unless commented) 1.4.6 Pin LCCb/DOUT1 (CMOS Output) The primary function of this pin is as LCCb (Local Configuration Complete), this signal is used in multiple dpASP designs to pass Chips Select from dpASP to dpASP enabling primary configuration of a serial chain of dpASP’s from a single SPI bus, please refer to the AN231E04 User Guide for details. If the LCCb signal pin is not required (e.g. a circuit design with a single dpASP device) then via dpASP configuration this pin can be used as a digital output, this is realized by adjusting the properties of the dpASP “digital I/O cell”. Parameter Symbol Min Typ Max Unit Output Voltage Low, (LCCb) Vol(LCCb) VSS - VSS mV Output Voltage High, (LCCb) Voh(LCCb) 3.00 - 3.20 V Output Voltage Low, (DOUT1) Vol(DOUT1) VSS - VSS mV Output Voltage High, (DOUT1) Voh(DOUT1) 3.29 - VDD V 50 - 10 - pF Kohm Max. Capacitive Load Min. Resistive Load Current Sink, (LCCb) Isnk(LCCb) 3.0 - 7.0 mA Current Source, (LCCb) Isrc(LCCb) 0.25 - 0.80 mA Current Sink, (DOUT1) Isnk(DOUT1) 20.0 - 60.0 mA Current Source, (DOUT1) Isrc(DOUT1) 12.5 - 35.0 mA Clock skew (DOUT1 connected to “clocka”) CLKSKEW - 8.0 - ns Comparator skew (DOUT1 connected to “comparator”) COMPSKEW - 25.0 - ns RAMDELAY - 20.0 - ns DONEDELAY - 40 - ms RAM transfer delay (DOUT1 connected to “RAM transfer Pulse”) Auto-null/Osc start delay (DOUT1 connected to “Autonull/Osc start done” signal) 1 1 Cmax Rmin Comment Load 10pF//50Kohm to VSS, during configuration. Load 10pF//50Kohm to VSS, during configuration. VDD = 3.3 V Load 10pF//50Kohm to VSS, When configured to pin39=DOUT1 Load 10pF//50Kohm to VSS, When configured to pin39=DOUT1 VDD = 3.3 V. Maximum load 10 pF // 50 Kohm Maximum load 10 pF // 50 Kohm LCCb (pin 39) shorted to VDD, during configuration. Current should be limited externally so that it does not exceed 3mA. LCCb (pin 39) shorted to VSS, during configuration. DOUT1 (pin 39) shorted to VDD,. Current should be limited externally so that it does not exceed 3mA. DOUT1 (pin 39) shorted to VSS, Current should be limited externally so that it does not exceed 3mA. Skew at DOUT1 (pin 39) relative to external signal clock applied to input pin ACLK (pin 34). Note; This is only valid when DOUT1 is selected to output the CAM clockA, and CAM clockA is derived from ACLK divided by1. This is the delay of the comparator CAM output transition relative to the exported comparator clock clock appears on the output pin. Note, The comparator is clocked with a user programmable CAM clock derived from a division of ACLK This is the delay of the signal at the dpASP pin 39, (DOUT1) relative to the actual internal transfer event. This is the delay of the signal at the dpASP pin 39, (DOUT1) relative to the actual internal event. see application note AN231002 “Auto-nulling within the AN231E04” DS231000-U001d -7- AN231E04 Datasheet – Dynamically Reconfigurable dpASP 1.4 1.4.7 Digital I/O Characteristics, continued (VDD = 3.3v +/-10%, -40 to 85 deg.C unless commented) MEMCLK/DOUT2 (CMOS Output) The primary function of this pin is as MEMCLK (Memory Clock), this signal is used as a clock output in circuit designs which require configuration from an SPI PROM (or SPI EEPROM), please refer to the AN231E04 User Guide for details. If the MEMCLK signal pin is not required (e.g. a circuit configured from a microcontroller) then via dpASP configuration this pin can be used as a digital output. The MEMCLK signal is only active when the dpASP MODE (pin35) is high (tied to VDD). DOUT2 function cannot be used if dpASP MODE (pin35) is high (tied to VDD). Parameter Symbol Min Typ Max Unit Vol VSS - VSS mV Vol VSS - VSS mV Vol VSS - VSS mV Voh 3.28 - VDD V Cmax Rmin 5 - 100 - pF Kohm Current Sink, (MODE pin 35 = VSS & DOUT2 inactive) Isnk 0.01 0.03 0.05 mA Current Source, (MODE pin 35 = VSS & DOUT2 inactive) Isrc - - +/-1 uA Current Sink, (MODE pin 35 = VDD or DOUT2 active) Isnk 60 100 135 mA Current Source, (MODE pin 35 = VDD or DOUT2 active) Isrc 50 80 110 mA Clock skew (DOUT2 connected to “clocka”) CLKSKEW - 8.0 - ns Comparator skew (DOUT2 connected to “comparitor”) COMPSKEW - 25.0 - ns RAM transfer delay (DOUT2 connected to “RAM transfer Pulse”) RAMDELAY - 20.0 - ns Auto-null/Osc start delay (DOUT2 connected to “Autonull/Osc start done” signal) 2 DONEDELAY - 40 - ms Output Voltage Low, (MODE pin 35 = VSS, DOUT2 inactive) Output Voltage Low, (MODE pin 35 = VSS, DOUT2 active) Output Voltage Low, (MODE pin 35 = VDD) Output Voltage High Max. Capacitive Load Min. Resistive Load 2 Comment Load 10pF//50Kohm to VSS. This Pin MEMCLK is unused in this MODE=VSS, there is an internal weak pull down resistor Load 100pF//5Kohm to VSS Load 100pF//5Kohm to VSS Load 100pF//5Kohm to VSS, VDD = 3.3V. Maximum load 100 pF // 5 Kohm Maximum load 100 pF // 5 Kohm Pin shorted to VDD. Th This Pin MEMCLK is unused when MODE=VSS and DOUT2 is inactive. Thus No active drive. Pin shorted to VSS. This Pin MEMCLK is unused when MODE=VSS and DOUT2 is inactive. Thus No active drive. Pin shorted to VDD. Current should be limited externally so that it does not exceed 3mA Pin shorted to VSS. Current should be limited externally so that it does not exceed 3mA Skew at DOUT2 (pin 42) relative to external signal clock applied to input pin ACLK (pin 34). Note; This is only valid when DOUT2 is selected to output the CAM clockA, and CAM clockA is derived from ACLK divided by1. This is the delay of the comparator CAM output transition relative to the exported comparator clock clock appears on the output pin. Note, The comparator is clocked with a user programmable CAM clock derived from a division of ACLK This is the delay of the signal at the dpASP pin 42, (DOUT2) relative to the actual internal transfer event. This is the delay of the signal at the dpASP pin 42, (DOUT2) relative to the actual internal event. see application note AN231002 “Auto-nulling within the AN231E04” DS231000-U001d -8- AN231E04 Datasheet – Dynamically Reconfigurable dpASP 1.4.8 RAM Transfer – Trigger and Arm These digital inputs do not have dedicated pins, a connection exists within the dpASP, an external signal can be routed to either of these virtual pins from a type2 I/O cell (I/O cells 5, 6 and 7. Pins 15,16,17,18,19 or 20). The purpose of these virtual pins is to extend optional asynchronous timing control of the dpASP configuration to the user. Parameter Input Voltage Low Input Voltage High Minimum pulse width connected to where Pulse-Pulse edge delay Execute delay Symbol Min Vil Vih TPW setup time 0 70 Typ Max Unit 30 100 % % 5 - - ns TPT-T setup time 10 - - ns TEXDLY 0 10 20 ns TMinEW 1 ALCK - 2 ACLK - TPTR 10 - - ns Execute minimum width Pre-trigger reset. TPW Comment % of DVDD % of DVDD Time to register the event internally. Delay between pre-trigger and trigger. Need not be observed if pre-trigger is not used, is set at the end of configuration automatically. Delay from trigger rising edge to internal execute event. Duration of execute pulse guaranteed 1 ACLK period. Can be as long as 2 periods depending on relative phases. Pre-trigger circuit is reset ready to accept another pre-trigger. TPTR Pre-trigger TPW TPT-T Trigger Internal RAM execute TEXDLY TMinEW edge (n) edge (n+1) ACLK AnadigmDesigner2 options, (these are set using the software tool AnadigmDesigner2) RAM Transfer Trigger = Automatic : RAM transfer happens automatically immediately after the “end” byte of a configuration bit stream. Timing control is entirely inside the AN231E04 device and not visible to a user. RAM Transfer Trigger = Event driven. RAM Trigger = Off. no pre-trigger used. The “end” byte of configuration bit stream arms the RAM transfer and the user signal then acts as the trigger. Arm Trigger = On External Signal Allowed = Trigger. This setting allows the external signal connected to be the trigger, Arming must be from an internal signal. External Signal Allowed = Arm. This setting allows the external signal connected to be the arming signal, Trigger be from an internal signal. RAM Transfer Trigger = Clock synch RAM transfer happens automatically immediately following the first occurrence of all internal clocks being scyncronous. Timing control is entirely inside the AN231E04 device and not visible to a user. HINT: The RAM transfer timings above are for the trigger block hardware - The Trigger and Arm signals can come from many sources, propagation delays to the trigger block inputs will vary depending on the source and routing of the signals to this block. DS231000-U001d -9- AN231E04 Datasheet – Dynamically Reconfigurable dpASP 1.5 1.5.1 Analog I/O Characteristics (VDD = 3.3v +/-10%, -40 to 85 deg.C unless commented) Analog Inputs General Parameter Input Range Differential Input Common Mode Input Range Input Offset Symbol Min Typ Max Unit Vdiffina VMR 1.375 0 - VMR + 1.375 +/-2.75 Vcm 1.4 1.5 1.6 V VosIOInt - 3.0 18 mV VosIOAZ - 0.5 1.0 mV Vina - V V VosCabI - 3 18 mV VosCabAz - 250 1000 uV VosCabzC - 75 250 uV Fain 0 <2 8 MHz Symbol Min Typ Vinouta VMR 1.375 - Vdiffioa - - Vcm VMR VMR VMR V Input Frequency 1.5.2 Comment VMR set to 1.5V VMR = 1.5 V. Limited by signal clipping for large waveforms. Please see figures IO cell, unity gain mode intrinsic IO cell, unity gain mode, auto-null on. CAB, unity gain mode. CAB, unity gain mode, auto-null on. CAB, unity gain mode, auto-null and chopping on. Max value is clock, CAM and input stage dependent. Input frequency for most CAMs is limited to approx <2MHz due to CAM signal processing which is based on sampled data architectures. IO Differential Operational Amplifier Parameter Output voltage range Differential Input/Output Common Mode Input Voltage Range (Note1) Max VMR+ 1.375 +/2.75 Unit V V Common Mode Output Voltage Deviation from VMR Equivalent Input Voltage Offset. Vcm - 23.5 72.7 mV VoffsetI - 3.0 18.0 mV Equivalent Input Voltage Offset. VoffsetAZ - 500 1000 uV Auto-null time, from LCCb falling edge. TAZ - 60 - ms VoffsettAZ TC - 4 - µV/°C PSSR 60 - - dB CMRR 60 - - dB Differential Slew Rate Slew - 50 - V/µsec Unity Gain Bandwidth. Open loop gain Input Impedance UGB Av Rin 10 63 103 - - MHz dB Mohm Output Impedance Rout - 33 - Ohms Offset Voltage Temperature Coefficient Power Supply Rejection Ratio Common Mode Rejection Ratio Comment VMR = 1.5V. Measured for IO SnH circuit. Common mode voltage = 1.5 V. Measured for IO SnH circuit. Limited due to causing signal clipping for large waveforms. VMR can be varied if supplied externally (+200mV to -1.0volt) Due to common mode offsets. Intrinsic offset voltage. Auto-null offset voltage, rectangular distribution. see application note AN231002 “Auto-nulling within the AN231E04” Auto-null mode, from -40°C to 125°C. Sample and Hold mode, 1MHz clk, at DC Sample and Hold mode, 1MHz clk, at DC Opamp driving off chip with Max load. Effective internal slew is affected by the internal routing and load is normally much faster 10pF external load Voltage gain mode Measured at package pins. Track impedance increases the DS231000-U001d - 10 - AN231E04 Datasheet – Dynamically Reconfigurable dpASP effective output impedance. The OpAmp is designed to drive all internal nodes, Output Load, External Output Load, External Noise Figure Signal-To Noise Ratio and Distortion Spurious Free Dynamic Range 1.5.3 Rload Cload NF 1 - 0.16 100 - Kohm pF µV/√Hz SINAD - 97 - dB SFDR - 96 - dB Typ Max Symbol Min Input Range Vina Vdiffina See analog input above Equivalent Input Offset Voltage Offset Voltage Temperature Coefficient Input Frequency Power Supply Rejection Ratio Common Mode Rejection Ratio Input Resistance Input Capacitance Input Referred Noise Figure Signal-to Noise Ratio and Distortion Spurious Free Dynamic Range Unit VosI - 3 18 mV VosAZ - 500 1000 uV VoffsettcAZ - 4 - µV/°C Fain 0 - 2 MHz PSRR CMRR Rin Cin 60 60 10 - - 8.0 dB dB Mohm pF NF - 0.16 - µV/√Hz SINAD - 84 - dB SFDR - 90 - dB Symbol Min Typ Max Unit Input Range Gain Gain Accuracy Vina Vdiffina Ginamp GA 0dB GA10dB GA20dB GA30dB GA40dB See analog input above - 0dB - - 60dB 5 5 5 5 5 % % % % % Equivalent Input Offset Voltage VosI - 0.5 14 mV Equivalent Input Offset Voltage VosAZ1 - 250 500 uV Equivalent Input Offset Voltage VosAZ2 - 25 100 uV VoffsettcAZ - 15 TBD µV/°C Fain 0 - - KHz Offset Voltage Temperature Coefficient Input Frequency 4 Comment Non auto-null differential opamp offset 3 Auto-null differential opamp offset3 With auto-null active. From -40°C to 125°C Generally limited by aliasing to half Sample and Hold clock. d.c. R=1/Cf equivalent Switched capacitances 0dBu input, 1KHz, Noise summed from 20Hz to 22KHz 0dBu input, 1KHz, Noise summed from 20Hz to 22KHz 0dBu input, 1KHz Chopper Amplifier Cell Parameter 3 Unity gain mode. IO Cell, Sample and Hold Mode Parameter 1.5.4 Unity gain mode. Unity gain mode. Comment Usable input range will be reduced by the effective gain setting 4 Software selected 0dB setting, 1KHz test signal. 10dB setting, 1KHz test signal. 20dB setting, 1KHz test signal. 30dB setting, 1KHz test signal. 40dB setting, 1KHz test signal. Intrinsic differential opamp offset Differential opamp offset, autonulled, NOT chopped. Differential opamp offset, autonulled and chopped. With auto-null and chopping active. From -40°C to 125°C Generally 10x slower than clock, application dependent. The sample and hold offset varies from phase1 to phase2. This is an average of both values To avoid clipping the maximum input range should be divided by the chopper gain DS231000-U001d - 11 - AN231E04 Datasheet – Dynamically Reconfigurable dpASP Power Supply Rejection Ratio PSRR - 62 - dB Common Mode Rejection Ratio CMRR - 81 - dB Large Signal Harmonic Distortion Input Resistance Input Capacitance Dist Rin Cin 10 - -77 5.0 dB Mohm pF Input Referred Noise Floor IRN - 20 - nV/√Hz Input Referred Noise Floor IRN - 4 - nV/√Hz Signal-to Noise and Distortion Ratio SINAD - 76 - dB Spurious Free Dynamic Range SFDR - 90 - dB Figure 1: ChopperAmplifier CMRR 1.5.5 DC. Amp Gain = 0dB 250kHz clock, 1kHz 0dBu output. See figure 1 Unity-gain. 0dBu input at 1KHz 20dB-gain, 250kHz clock. IIdle channel. 60dB-gain, 250kHz clock. IIdle channel. 20dB-gain, 250kHz clock. 0dBu output at 1KHz. Noise and distortion summed from 22Hz to 22KHz 20dB-gain, 250kHz clock. 0dBu output at 1KHz, See figure 2 Figure 2: ChopperAmplifier SFDR Analog Outputs, Loading & Signal Conditioning (The IO cells use the same circuits as the input cells) Parameter Symbol Min Typ Max Unit Min load R Rout RloadMin ROUTIO 1 - 33 - KOhm Ohms ROUTCAB - 530 - Ohms Cload Max - - 100 pF SIGLARGE VMR1.375 - VMR+ 1.375 V Vcm - VMR - V VcmDV - - - mV Max load C Large signal swing Common Mode Voltage Common Mode Voltage Deviation Comment to VSS For IO opamp to package pins. For CAB opamp to package pins, (depends on CAB and IO used) Core to outside in bypass I/O. to VSS. Differential voltage where -80dB THD is reached for IO cell in SnH mode. 10pF load. Derived from on chip VMR voltage. Deviation from supplied VMR. Values are quoted for IO cell or CAB opamp. See other tables. DS231000-U001d - 12 - AN231E04 Datasheet – Dynamically Reconfigurable dpASP 1.5.6 Clock Dividers Parameter Division ratio Primary divider Division ratio secondary divider Division ratio auto zero clock Min clock speed Symbol Min Typ Max Unit DIVRATIOPR DIVRATIOSEC DIVAZ 1 1 1000 162K 1kHz @ 25°C) 510 510 510K - CLKMIN - - KHz 10kHz @ 85°C Max clock speed CLKMAX - - 8 MHz PhaseD 0 - 255 cycles Parameter Symbol Min Typ Max Unit Intrinsic Porb duration Porb brown out voltage PorbDEL 0.5 1 2 ms PorbBROWN 0.8 1.1 1.5 V AZDEL - 60 - ms Phase delay 1.5.7 Comment After release of Porb pin. Porb will reset device if VDD drops below this level to prevent RAM corruption. Duration for AZ cycle of opamps VMR (voltage Mid Rail) and VREF (Reference Voltage) Ratings Parameter VMR Output Voltage VREF+ Output Voltage VREF- Output Voltage Output Voltage Deviation VMR Output Voltage Deviation VREF+, VREFVoltage Temperature Coefficient VREF+, VMR, VREFPower Supply Rejection Ratio, VMR Power Supply Rejection Ratio Vref+ and VrefStart Up Time 5 Software controlled. Software controlled. Typical is default value. Each CAM has a different lower clock frequency depending on the parameters set. Excessively low clock frequency will cause signal droop. Each CAM has a different upper clock frequency depending on the parameters set. Excessively high clock frequency will cause poor settling and loss of precision. Measured in terms of cycles of clock from a primary clock divider. PORb & Auto-null Auto-null period 5 1.5.8 Comment Symbol Min Typ Max Unit Comment Vvmr Vref+ Vref- 1491 2469 481 1500 2492 501 1509 2515 520 mV mV mV Vrefout - 0.5 1.0 % Vrefout - 1.0 2.0 % At 25°C, VDD=3.3 volts, see figure 3 At 25°C, VDD=3.3 volts, see figure 4 At 25°C, VDD=3.3 volts, see figure 4 Over process and supply voltage corners Over process and supply voltage corners Vreftc - - - - PSSR TBD - - dB DC PSSR TBD - - dB DC Tstart - - 1 ms Assuming recommended capacitors, 25°C, VDD=3.3 volts See typical graphical data below -40°C to 125°C see application note AN231002 “Auto-nulling within the AN231E04” DS231000-U001d - 13 - AN231E04 Datasheet – Dynamically Reconfigurable dpASP VMR [V] VMR vs Temperature 1.498 1.497 1.496 1.495 1.494 1.493 1.492 1.491 1.49 1.489 y = -7E-07x 2 + 9E-05x + 1.4946 R2 = 0.9992 -50 0 50 100 150 T [°C] Figure 3: GainHold CMRR D_VREF [V] Differential VREF (VREF+ - VREF-) vs Temperature 1.986 1.985 1.984 1.983 1.982 1.981 1.98 1.979 1.978 1.977 2 y = -9E-07x + 9E-05x + 1.9831 2 R = 0.9984 -50 0 50 100 150 T [°C] Figure 4: GainHold CMRR DS231000-U001d - 14 - AN231E04 Datasheet – Dynamically Reconfigurable dpASP 1.5.9 CAB (Configurable Analog Block) Differential Operational Amplifier Parameter Symbol Min Typ Max Unit Vinouta 0.05 - 2.95 V Vdiffioa - - +/-2.9 V Vcm 1.4 1.5 1.6 V VcmD 0 - +/-50 mV VoffsetI VosAZ VosAZchpI - 18 1000 250 mV uV uV VosAZ - 3 250 75 see graph 19 µV/°C VosAZChp - - < 0.1 µV/°C PSSR - 60 - dB CMRR - 54 - dB Differential Slew Rate, Internal SlewI - 35 - V/µsec Differential Slew Rate, External SlewE - 30 - V/µsec UGB - 18 - MHz Rin 10 - - Mohm Output Impedance, Internal Rout - - - Ohms Output Impedance, External Rout - 600 - Ohms Output Load, External 7 Output Load, External Rload Cload 1 - - 100 Kohm pF IRN - 300 - nV/√Hz SINAD - 86 - dB SFDR - 100 - dB Output Range Differential Output voltage Common Mode Input Voltage Range 6 Common Mode Voltage Deviation Equivalent Input Voltage Offset. Equivalent Input Voltage Offset. Equivalent Input Voltage Offset. Offset Voltage Temperature Coefficient Offset Voltage Temperature Coefficient Power Supply Rejection Ratio Common Mode Rejection Ratio Unity Gain Bandwidth, Full Power Mode. Input Impedance, Internal Input Referred Noise Floor 8 Signal-To Noise and Distortion Ratio 8 Spurious Free Dynamic Range 8 Comment GainInv 1kHz THD > -80dB. Common mode voltage = 1.5 V Limited by signal clipping. GainInv THD exceeds -80dB Common mode voltage = 1.5 V VMR set to 1.5V 6 Deviation is caused by opamp common mode offset voltages. Intrinsic offset voltage. Auto-null offset voltage. Auto-null & chopped offset Auto-null mode, from -40°C to 125°C. Auto-null and chopped mode, from -40°C to 125°C. DC. Variation between CAMs is expected because of variations in architecture. GainInv CAM, clock = 1MHz, gain = 1. -20dBu input at 1kHz See figure 6 Applicable when the OpAmp load is internal to the dpASP Applicable when the OpAmp driving signal out of the dpASP package. Routing resistance causes degradation from Slew Applicable when sourcing and loading the OpAmp with a load internal to the dpASP. CAMs limit signal frequency to a lower value. See figure 5 The OpAmp output is designed to drive all internal nodes, these are dominantly capacitive loads Output to a dpASP output pin (output cell bypass mode). This variable is influenced by CAB capacitor size, CAB clock frequency and CAB architecture Unity-gain GainHold CAM, 1MHz clocking. Idle channel. Unity-gain GainHold CAM, 1MHz clocking. 0dBu input at 1KHz, Noise and distortion summed from 22Hz to 22KHz Unity-gain GainHold CAM and SnH output cell. 1MHz clocking. 0dBu input at 1KHz. See figure 7 6 The is for the OpAmp. The use of virtual earth architectures means the CAMs can exceed these values The maximum load for an analog output is 100 pF || 1 K Ohms. This load is with respect to AVSS. Using the DPASP with CAB Opamps driving directly off chip is not recommended. Full characterization of the performance of each application circuit by the designer is necessary 8 Using an I/O Cell Sample & Hold is used to prevent the variable routing resistance affecting the harmonic response 7 DS231000-U001d - 15 - AN231E04 Datasheet – Dynamically Reconfigurable dpASP The idealized open loop gain plot is provided for information only. This information is associated with the dpASP in full power mode of operation. The dpASP operational amplifier open loop gain cannot be observed nor used when associated with external connections to the device. Internal reprogrammable routing impedances and switched capacitor circuit architectures using this operational amplifier limit the effective usable bandwidth. Figure 5: CAB Opamp Open Loop Gain Response Figure 6: GainHold CMRR Figure 7:GainHold SFDR DS231000-U001d - 16 - AN231E04 Datasheet – Dynamically Reconfigurable dpASP 1.5.10 CAB (Configurable Analog Block) Differential Comparator Parameter Input Range, External or Internal Differential Input, Internal Differential Output bypass (bypass with core comparator is not a recommended operating mode) Input Voltage Offset Offset Voltage Temperature Coefficient Setup Time, Internal Setup Time, External Delay Time Symbol Min Typ Max Unit Vina 0.0 - VDD V Vdiffina - - - V VoutdiffL 0.163 - 3.138 V VoutdiffA 0.592 Voffcomp - 0.78 1.22 mV Voffsettc - 1 - µV/°C Tsetint Tsetext - - 125 500 nsec nsec Tdelay ½Td+25 - 1½Td+25 nsec Rload 10 - - Kohm Cload - - 50 pF Hysta0 Hysta1 - Voffcomp 10 - mV mV Hysttc1 - 10 - µV/°C 2.396 Output Load Output Load Differential Hysteresis Differential Hysteresis Hysteresis Temperature Coefficient Comment Will operate correctly. Set by internal signal clipping based on common mode voltage. 3.3VDD. In digital output mode, 10KOhms connected between output pins. Varies with internal routing. Pad buffers are recommended in this mode. In analogue Vref level output mode. 10KOhms connected between output pins. Will vary with internal routing. Zero hysteresis from -40°C to 125°C, Zero hysteresis Td = 1/Fc Fc = master clock frequency Applies if comparator drive off chip with output cell in bypass mode Applies if comparator drive off chip with output cell in bypass mode Hysteresis setting OFF Hysteresis setting ON Hysteresis setting = ON DS231000-U001d - 17 - AN231E04 Datasheet – Dynamically Reconfigurable dpASP 1.5.11 ESD Characteristics Pin Type Human Body Model Machine Model Charged Device Model Digital Inputs Digital Outputs Digital Bidirectional Digital Open Drain Analog Inputs Analog Outputs Reference Voltages 4000V 4000V 4000V 4000V 2000V 1500V 1500V 250V 250V 250V 250V 200V 100V 100V 4kV 4kV 4kV 4kV 4kV 4kV 4kV The AN231E04 is an ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000V readily accumulate on the human body and test equipment and can discharge without detection. Although the AN231E04 device 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. 1.5.12 Power Consumption – Various Modes Parameter Deep sleep mode 1a Stand Standyby mode 1b Small circuit mode 1c Nominal circuit mode1d HighPower1e Temperature Coefficient for High power. Symbol Min Typ Max Idd Idd Idd Idd - Idd - 0.004 0.3 15 42 61 67 73 75 - - - -2 -10 Unit mA mA mA mA mA Comment VDD=3.3 volts, Tj=25°C VDD=3.3 volts, Tj=25°C VDD=3.3 volts, Tj=25°C VDD=3.3 volts, Tj=25°C VDD=3.0 volts, Tj=85°C VDD=3.3 volts, Tj=25°C VDD=3.6 volts, Tj= -40°C µA/°C 1a. 1b 1c. 1d External clock stopped, all analog function disabled, memory active. External clock at 16MHz on ACLK, all analog functions disabled, memory active. dpASP active elements – Gain hold CAM, One IO in SnH and both clocked at 1MHz, One IO bypass, all references on. dpASP active elements - Four gain hold CAMs (4 CAB opamps), one CAB comparator, one CAB multiplier (1 CAB opamp, 1 CAB comparator, 1 CAB SAR ADC), Two IO in SnH, One IO in bypass, one simple IO in digital mode. 4 MHz clock for all, all references on. 1e dpASP active elements - Seven gain hold CAMs (seven CAB opamps), 1 arbitrary waveform generator (one CAB opamp, LUT, counter) 4 CAB comparators, 4 IO Sample and hold, references on, 4 MHz clock for all where possible, all references on. DS231000-U001d - 18 - AN231E04 Datasheet – Dynamically Reconfigurable dpASP PINOUT Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Pin Name I1P I1N O1N O1P AVSS O2P O2N I2N I2P AVDD I3P I3N O3N O3P IO5P IO5N IO6P IO6N IO7P IO7N O4P O4N I4N I4P BVDD VREFP VMR VREFN BVSS CFGFLGb Pin Type +ve Input -ve Input -ve Output +ve Output Ground Supply +ve Input -ve Input -ve Output +ve Output Positive Supply +ve Input -ve Input -ve Output +ve Output +ve Input/Output -ve Input/Output +ve Input/Output -ve Input/Output +ve Input/Output -ve Input/Output +ve Input -ve Input -ve Output +ve Output Positive Supply Reference load Reference load Reference load Ground Supply Digital Output 31 32 33 34 35 CS2b CS1b SCLK ACLK MODE Digital input Digital input Digital input Digital input Digital input 36 37 38 39 DVDD DVSS SI LCCb/ DOUT1 Positive Supply Ground Supply Digital input Digital output 40 ERRb Digital output 41 ACTIVATE Digital Output 42 MEMCLK/ DOUT2 SO RESETb Digital Output 43 44 Digital Output Digital Input Comments Type1 Input/Output cell. (IO Cell 1) Analog or digital input and output pins Analog ground, 0 Volts Type1 Input/Output cell. (IO cell 2) Analog or digital input and output pins Analog power 3.3 Volts Type1a Input/Output cell. (IO cell 3) Analog or digital input and output pins Type 2 Input/Output cell. (IO cell 5) Type 2 Input/Output cell. (IO cell 6) Type 2a Input/Output cell. (IO cell 7) Type1a Input/Output cell. (IO cell 3) Analog or digital input and output pins Voltage reference power 3.3 Volts Reference Voltage Noise suppression. Connected a 100nF capacitor from each pin to BVSS. The capacitive reservoir is used to sink and source peak current, thus reducing noise and maintaining stable reference voltages. Voltage reference ground 0 Volts Config status pin. Open Drain Output with optional internal Pull-up resistor. The output voltage is also sensed by internal circuitry, See figure XX for schematic. Chip select pin Device select CMOS, configuration logic strobe clock. CMOS, Analog clock input Connect to VSS (ACLK and SCLK sourced externally). Connect to VDD (ACLK sourced externally, MEMCLK & SO generated internally). Digital power 3.3 Volts Digital ground 0.0 Volts CMOS Serial data input. CMOS. Default function, Indicates Local Configuration Complete. Optional function (Single dpASP designs only), pin can be configured as user assignable signal path digital output under software control. Error indication. Open Drain, External Pull-up resistor must be used (10KOhms) See fig XXa Indicates Device activation. Open Drain Output with optional internal Pull-up resistor. The output voltage is also sensed by internal circuitry, See figure XX for schematic. Outputs MEMCLK clock when MODE pin = VSS. Caution - Do not load this pin during reset (NOT to be pulled low externally) Serial Out, ONLY used as an output for SPI-PROM setup bytes during configuration. Connected to VSS to reset the dpASP. If held low the dpASP will remain in reset (2msec delay internal set-up time follows release of RESETb (when this pin is pulled high)) DS231000-U001d - 19 - AN231E04 Datasheet – Dynamically Reconfigurable dpASP MECHANICAL AND HANDLING SO MEMCLK/DOUT2 ACTIVATE ERRb LCCb/DOUT1 SI DVSS DVDD MODE ACLK I1P RESETb The AN231E04 comes in the industry standard 44 lead QFN package. Dry pack handling is recommended. The package is qualified to MSL3 (JEDEC Standard, J-STD-020A, Level 3). Once the device is removed from dry pack, 30°C at 60% humidity for not longer than 168 hours is the maximum recommended exposure prior to solder reflow. If out of dry pack for longer than this recommended period of time, then the recommended bake out procedure prior to solder reflow is 24 hours at 125°C. The package is compliant with RoHS and is Lead-free. Lead finish is Matt tin (Sn-Cu). 44 43 42 41 40 39 38 37 36 35 34 33 1 SCLK I1N 2 32 CS1b O1 3 31 CS2b O1 4 30 CFGFLGb AVSS 5 29 BVSS O2 6 28 VREFN O2 7 27 VMR I2N 8 26 VREFP I2P 9 25 BVDD 10 24 I4P I4N 19 20 21 23 22 O4P O4N IO6P 18 IO7N 17 IO7P 16 IO6N 15 IO5N 14 IO5P I3N 13 O3P 11 12 I3P O3 AVD AN231E04 All dimension are in mm Symbol A A1 A2 A3 D D1 D2 b e f g Q1 R Min 0.00 5.30 0.20 0.26 0.2 Nom 0.01 0.65 0.20 7.00 6.75 5.50 0.25 0.50 0.42 - 0.0’ (Ang.deg. ) 0.09 - Max 0.90 0.05 0.70 5.70 0.32 0.60 12’ - DS231000-U001d - 20 - AN231E04 Datasheet – Dynamically Reconfigurable dpASP QFN Package mechanical drawing TOP VIEW D1 D 1.23 Seating Plane Pin1 marker DIA 0,50 1 23 D 0.45 Pin1 marker 0,20 R D1 A A2 D2 f A1 A3 f g D2 e BOTTOM VIEW SIDE VIEW b g Q1 f f g DS231000-U001d - 21 - AN231E04 Datasheet – Dynamically Reconfigurable dpASP This page is empty DS231000-U001d - 22 - AN231E04 Datasheet – Dynamically Reconfigurable dpASP This page is empty DS231000-U001d - 23 - AN231E04 Datasheet – Dynamically Reconfigurable dpASP This page is empty http://www.anadigm.com For More information Contact [email protected] DS231000-U001d - 24 -