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The World Leader in High Performance Signal Processing Solutions
Industrial Control Applications Market
Agenda
Motor Control (shaft encoder feedback)
Challenges & Market Trends AD7400, AD7262/4, ADuM1233, ADuM1402, ADuC7128
-40°C to +105°C Operating ° ° Temperature Range Onboard Digital Isolation
3.75kV Isolation Rating
Ideal for Motor Control
Current Monitor Loop
Resolution 16-Bit AD7401 As per AD7400 except 16 MHz data rate Data Rate 10 MHz Channel No. 1 Diff Interface Σ/∆ Power Supply VDD1 5 V, VDD2 3/5 V Package 16-lead SOIC
Maximum DNL of ±0.99 LSB’s
Guaranteed no missing codes to 14 bits
2.5V Reference with Temperature Coefficient of 20ppm/oC Low power consumption of 120mW in Normal mode and 5.25mW in Shut-Down mode.
AD7400: Combining iCoupler Technology with Analog
Insulation
ADC
Analog Die
Top Metal Layer Transformer Die
Integration Performance Power Consumption Ease-of-Use Reliability
Sampling in March ‘07
AD7264 - Continued
Three on-chip comparators used to monitor
H.E. pole sensors from a magnetic encoder, or The inner tracks from a sine/cosine optical encoders
AD7262/AD7264 Connection
ADC sampling less than Nyquist because using the info. from the synchronised poles
Methods for current sensing..
Current Current Signal Conditioning
Hall Effect Sensor
Current
Magnetic Field
Current Transducer
Resistive Current Sensing Topology
Low Side Current Sensing Input Voltage < Supply
•Low Voltage Measurement
A variety of power-down combinations.
Analog input impedance of >1GΩ PGA - Gain Scales with BW
Bandwidth FPBW(-0.1dB) 100kHz for gains <64, higher gains need lower bandwidths e.g. photodiode needs gain of 100 but -3dB BW = 53kHz.
Shunt
Current
0V
5V
Current 5V
High Voltage Measurement Shunt Integrated High Voltage Difference ADI Resistor and Current Sense Amplifiers .
PWM Signal
Switch
R
Phase
ADC
Isolated A/D (+) Low Cost (+) High Accuracy (+) Fewest Components (-) Maybe Less Useful for Very High Power
AD7400–3.75kV Isolated Sigma Delta Modulator
ADI •WideResistor of single supply variety integrated amplifiers available.
•Allows for detections of shorts to GND which is very important in Current automotive.
KEY BENEFITS
Highest Performance Isolated ADC
± 2 LSB INL typ with 16-bit Resolution 3.5µV/°C max offset drift µ °
2nd Order Modulator
10 MHz Data Rate- AD7400 16 MHz Data Rate - AD7401, Ext Clock
ADC
Transformer Isolation (+) Good for High Power (-) Large Size (-) Relatively Expensive
Isolation Amp R Phase
Signal Conditioning
ADC
Isolation Amplifier (+) Flexibility (-) Complex/Accuracy (-) Relatively Expensive
6 Vs 5 + IN
Bandwidth 50kHz 50kHz 50kHz 50kHz 1 MHz 500kHz 500kHz 500kHz 200nS Prop Delay
AD7264 -Dual,14-Bit, Fra Baidu bibliotek-Channel SAR ADC With PGA
KEY BENEFITS
True Differential Analog Inputs Programmable Gain Stage:
×1, ×3, ×4, ×6, ×8, ×12, ×16, ×24, ×32, ×48,× 64, ×96, ×128 ×
BUS Voltage
High Side Current Sensing Input Voltage > Supply
•High Voltage Voltage BUS Measurement
Low Side Current Sensing…but Input Voltage > Supply
Battery Voltage BUS Voltage
Resolution 14-Bit Throughput 1MSPS Channel No. 2 * Differential Interface Serial Power Supply 5 V ± 5% Package 48-Ld TQFP/LFCSP
AD7262 As per AD7264 except 12-Bit resolution
5V
•Ground Noise is an issue •Wide variety of single supply Switch CONTROL op-amps available. •We also have integrated difference amplifiers.
•Ground Noise is not an issue
Need to Monitor:
Current Position and/or speed
Motor Control (shaft encoder feedback type)
Isolation Options with Current Monitoring
Isolation Barrier
Phase R
CONTROL
Switch
Shunt Resistor
ADI
Signal of interest already is Ground Referenced
Signal of interest needs conditioning to bring to a Ground Referenced level
Throughput rate per ADC:
AD7264: 920 KSPS AD7262: 1 MSPS
4 On-chip Comparators Low current consumption: 24mA Guaranteed Monotonic On-chip offset calibration Programmable offset & gain adjust On-chip reference: 2.5 V –40°C to +105°C operation ° ° High speed serial interface
PLC Output
Valve and control outputs and sensor inputs AD5664R, AD7793, AD7610, ADR441, AD8675, AD8662, AD8610, AD8506, ADuM5241, ADuM1401, ADG1409, ADG1204
Signal of interest needs conditioning to bring to a Ground Referenced level
New Difference- & Current-Sense- Amplifiers
Part # AD8202 AD8203 AD8205 AD8206 AD8216 AD8210 AD8212 AD8213 (Dual) AD8214 Sample Date Release Date Common Mode Range -6V to +30V -8V to +28V -2V to +65V -2V to +65V 0V to 65V -2V to +65V +7V to +500V -2V to +65V +6V to +65V Gain 20 14 50 20 3 20 Adj 20 n/a Input Uni-directional Uni-directional Bi-directional Bi-directional Bi-directional Bi-directional Uni-directional Uni-directional Threshold Detection
Motor Control
Industrial Automation Food, clothing, automotive, semiconductor Lathes, milling machines Closed loop control Better load positioning, control, accuracy, precision, consistency, efficiency Variable frequency drives or inverters Servo drives Digital (DSP & FPGA) Vs analog control More reliable, consistent Less susceptible to drift or noise Easier communication
Fourth Comparator monitors
Reference marker, Z marker from the encoder
Comparator optimised for low power at low input frequencies
Key Device Specifications
Industrial Control Applications Market
Agenda
Motor Control (shaft encoder feedback)
Challenges & Market Trends AD7400, AD7262/4, ADuM1233, ADuM1402, ADuC7128
-40°C to +105°C Operating ° ° Temperature Range Onboard Digital Isolation
3.75kV Isolation Rating
Ideal for Motor Control
Current Monitor Loop
Resolution 16-Bit AD7401 As per AD7400 except 16 MHz data rate Data Rate 10 MHz Channel No. 1 Diff Interface Σ/∆ Power Supply VDD1 5 V, VDD2 3/5 V Package 16-lead SOIC
Maximum DNL of ±0.99 LSB’s
Guaranteed no missing codes to 14 bits
2.5V Reference with Temperature Coefficient of 20ppm/oC Low power consumption of 120mW in Normal mode and 5.25mW in Shut-Down mode.
AD7400: Combining iCoupler Technology with Analog
Insulation
ADC
Analog Die
Top Metal Layer Transformer Die
Integration Performance Power Consumption Ease-of-Use Reliability
Sampling in March ‘07
AD7264 - Continued
Three on-chip comparators used to monitor
H.E. pole sensors from a magnetic encoder, or The inner tracks from a sine/cosine optical encoders
AD7262/AD7264 Connection
ADC sampling less than Nyquist because using the info. from the synchronised poles
Methods for current sensing..
Current Current Signal Conditioning
Hall Effect Sensor
Current
Magnetic Field
Current Transducer
Resistive Current Sensing Topology
Low Side Current Sensing Input Voltage < Supply
•Low Voltage Measurement
A variety of power-down combinations.
Analog input impedance of >1GΩ PGA - Gain Scales with BW
Bandwidth FPBW(-0.1dB) 100kHz for gains <64, higher gains need lower bandwidths e.g. photodiode needs gain of 100 but -3dB BW = 53kHz.
Shunt
Current
0V
5V
Current 5V
High Voltage Measurement Shunt Integrated High Voltage Difference ADI Resistor and Current Sense Amplifiers .
PWM Signal
Switch
R
Phase
ADC
Isolated A/D (+) Low Cost (+) High Accuracy (+) Fewest Components (-) Maybe Less Useful for Very High Power
AD7400–3.75kV Isolated Sigma Delta Modulator
ADI •WideResistor of single supply variety integrated amplifiers available.
•Allows for detections of shorts to GND which is very important in Current automotive.
KEY BENEFITS
Highest Performance Isolated ADC
± 2 LSB INL typ with 16-bit Resolution 3.5µV/°C max offset drift µ °
2nd Order Modulator
10 MHz Data Rate- AD7400 16 MHz Data Rate - AD7401, Ext Clock
ADC
Transformer Isolation (+) Good for High Power (-) Large Size (-) Relatively Expensive
Isolation Amp R Phase
Signal Conditioning
ADC
Isolation Amplifier (+) Flexibility (-) Complex/Accuracy (-) Relatively Expensive
6 Vs 5 + IN
Bandwidth 50kHz 50kHz 50kHz 50kHz 1 MHz 500kHz 500kHz 500kHz 200nS Prop Delay
AD7264 -Dual,14-Bit, Fra Baidu bibliotek-Channel SAR ADC With PGA
KEY BENEFITS
True Differential Analog Inputs Programmable Gain Stage:
×1, ×3, ×4, ×6, ×8, ×12, ×16, ×24, ×32, ×48,× 64, ×96, ×128 ×
BUS Voltage
High Side Current Sensing Input Voltage > Supply
•High Voltage Voltage BUS Measurement
Low Side Current Sensing…but Input Voltage > Supply
Battery Voltage BUS Voltage
Resolution 14-Bit Throughput 1MSPS Channel No. 2 * Differential Interface Serial Power Supply 5 V ± 5% Package 48-Ld TQFP/LFCSP
AD7262 As per AD7264 except 12-Bit resolution
5V
•Ground Noise is an issue •Wide variety of single supply Switch CONTROL op-amps available. •We also have integrated difference amplifiers.
•Ground Noise is not an issue
Need to Monitor:
Current Position and/or speed
Motor Control (shaft encoder feedback type)
Isolation Options with Current Monitoring
Isolation Barrier
Phase R
CONTROL
Switch
Shunt Resistor
ADI
Signal of interest already is Ground Referenced
Signal of interest needs conditioning to bring to a Ground Referenced level
Throughput rate per ADC:
AD7264: 920 KSPS AD7262: 1 MSPS
4 On-chip Comparators Low current consumption: 24mA Guaranteed Monotonic On-chip offset calibration Programmable offset & gain adjust On-chip reference: 2.5 V –40°C to +105°C operation ° ° High speed serial interface
PLC Output
Valve and control outputs and sensor inputs AD5664R, AD7793, AD7610, ADR441, AD8675, AD8662, AD8610, AD8506, ADuM5241, ADuM1401, ADG1409, ADG1204
Signal of interest needs conditioning to bring to a Ground Referenced level
New Difference- & Current-Sense- Amplifiers
Part # AD8202 AD8203 AD8205 AD8206 AD8216 AD8210 AD8212 AD8213 (Dual) AD8214 Sample Date Release Date Common Mode Range -6V to +30V -8V to +28V -2V to +65V -2V to +65V 0V to 65V -2V to +65V +7V to +500V -2V to +65V +6V to +65V Gain 20 14 50 20 3 20 Adj 20 n/a Input Uni-directional Uni-directional Bi-directional Bi-directional Bi-directional Bi-directional Uni-directional Uni-directional Threshold Detection
Motor Control
Industrial Automation Food, clothing, automotive, semiconductor Lathes, milling machines Closed loop control Better load positioning, control, accuracy, precision, consistency, efficiency Variable frequency drives or inverters Servo drives Digital (DSP & FPGA) Vs analog control More reliable, consistent Less susceptible to drift or noise Easier communication
Fourth Comparator monitors
Reference marker, Z marker from the encoder
Comparator optimised for low power at low input frequencies
Key Device Specifications