AD8210YRZ-REEL7

VSUPPLY IS RS +IN –IN V+ VS AD8210 LOAD VREF 1 G = +20 VOUT VREF 2 05147-001 GND AD8210 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1  Unidirectional Operation ......................................................... 11  Applications ...................................................................................... 1  Bidirectional Operation ............................................................ 11  Functional Block Diagram .............................................................. 1  Input Filtering ................................................................................. 13  General Description ......................................................................... 1  Applications Information ............................................................. 14  Revision History ............................................................................... 2  High-Side Current Sense with a Low-Side Switch ................ 14  Specifications .................................................................................... 3  High-Side Current Sense with a High-Side Switch ............... 14  Absolute Maximum Ratings ........................................................... 4  H-Bridge Motor Control ........................................................... 14  ESD Caution.................................................................................. 4  Outline Dimensions ....................................................................... 15  Pin Configuration and Function Descriptions ............................ 5  Ordering Guide .......................................................................... 15  Typical Performance Characteristics ............................................. 6  Automotive Products ................................................................ 15  Theory of Operation ...................................................................... 10  Modes of Operation ....................................................................... 11  REVISION HISTORY 5/2020—Rev. E to Rev. F Change to Table 2 ............................................................................. 4 Deleted Figure 3, Renumbered Sequentially ................................ 5 Changes to Table 3 ........................................................................... 5 Changes to Figure 7 and Figure 8 .................................................. 6 Changes to Figure 9 to Figure 14 ................................................... 7 Changes to Figure 15 ....................................................................... 8 Added Figure 16 and Figure 17 ...................................................... 8 9/2017—Rev. D to Rev. E Change to Ordering Guide............................................................ 15 2/2012—Rev. B to Rev. C Changes to Ordering Guide .......................................................... 15 5/2009—Rev. A to Rev. B Changes to Ordering Guide .......................................................... 15 4/2007—Rev. 0 to Rev. A Changes to Features ..........................................................................1 Changes to Input Section .................................................................3 Updated Outline Dimensions ...................................................... 15 4/2006—Revision 0: Initial Version 6/2013—Rev. C to Rev. D Added Automotive Information (Throughout) .......................... 1 Changes to Equation 1 ................................................................... 13 Added Automotive Products Section .......................................... 15 Rev. F | Page 2 of 16 –IN 1 GND 2 AD8210 8 +IN 7 VREF1 6 V+ TOP VIEW NC 4 (Not to Scale) 5 OUT NC = NO CONNECT 05147-003 VREF2 3 2000 1600 GAIN ERROR (ppm) 1200 800 400 0 –400 –800 –1200 –30 –20 –10 0 10 20 40 60 80 100 120 30 50 70 90 110 TEMPERATURE (°C) –2000 –40 140 30 25 130 20 –30 –20 –10 0 10 20 40 60 80 100 120 30 50 70 90 110 TEMPERATURE (°C) 05147-033 –1600 05147-030 VOSI (µV) 200 180 160 140 120 100 80 60 40 20 0 –20 –40 –60 –80 –100 –120 –140 –160 –180 –200 –40 15 120 10 +125°C 0 +25°C GAIN (dB) CMRR (dB) 5 110 100 –5 –10 –15 –20 90 –40°C –25 –30 80 –35 1k 10k 100k FREQUENCY (Hz) 05147-032 60 100 –45 –50 10 100 1k 10k 100k 1M 10M FREQUENCY (Hz) 140 INPUT (100mV/DIV) 130 +25°C 120 –40°C +125°C 100 90 80 60 100 1k 10k FREQUENCY (Hz) 100k 400ns/DIV 05147-017 70 05147-031 CMRR (dB) OUTPUT (500mV/DIV) 110 05147-014 –40 70 OUTPUT (4V/DIV) INPUT (100mV/DIV) OUTPUT ERROR (0.02%/DIV) 05147-024 400ns/DIV 05147-018 OUTPUT (500mV/DIV) 4µs/DIV INPUT (200mV/DIV) OUTPUT (4V/DIV) OUTPUT ERROR (0.02%/DIV) 4µs/DIV 05147-025 200ns/DIV 05147-019 1µs/DIV 05147-016 OUTPUT (2V/DIV) INPUT (200mV/DIV) INPUT (50V/DIV) OUTPUT (200mV/DIV) 1µs/DIV 05147-015 OUTPUT (2V/DIV) 05147-020 OUTPUT (200mV/DIV) 200ns/DIV 7 6 5 4 3 2 1 0 –40 –20 0 20 40 60 80 100 120 140 05147-022 INPUT (50V/DIV) 100 120 140 05147-026 MAXIMUM OUTPUT SINK CURRENT (mA) 8 TEMPERATURE (°C) 11 MAXIMUM OUTPUT SOURCE CURRENT (mA) 600 500 400 300 200 0 150 240 330 420 RISE TIME (ns) 510 600 690 10 9 8 7 6 5 4 3 2 1 0 –40 –20 0 20 40 60 80 TEMPERATURE (°C) 800 5.0 4.9 700 4.8 OUTPUT VOLTAGE RANGE (V) 600 500 400 300 200 4.7 4.6 4.5 4.4 4.3 4.2 4.1 4.0 3.9 3.8 3.7 100 3.6 3.5 0 60 150 240 330 420 FALL TIME (ns) 510 600 690 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 OUTPUT SOURCE CURRENT (mA) 05147-023 COMMON-MODE STEP RECOVERY ERROR (mV) 60 05147-117 100 05147-118 COMMON-MODE STEP RECOVERY ERROR (mV) 700 3500 1.2 3000 1.0 2500 0.8 COUNT 0.6 2000 1500 0.4 1000 0.2 500 0 0 2 1 5 4 3 8 7 6 05147-038 0 9 OUTPUT SINK CURRENT (mA) 0 3 6 9 12 15 18 20 GAIN DRIFT (ppm/°C) 05147-035 OUTPUT VOLTAGE RANGE FROM GND (V) 1.4 6.0 5.5 +125°C +25°C –40°C 4000 4.5 3000 4.0 COUNT SUPPLY CURRENT (mA) 5.0 3.5 2000 3.0 2.5 1000 2.0 2 4 6 8 65 COMMON-MODE VOLTAGE (V) 0 –2.0 –1.5 –1.0 –0.5 0 0.5 1.0 1.5 2.0 05147-036 0 05147-027 1.0 –2 2.0 05147-037 1.5 VOS (mV) 2100 4000 +125°C +25°C –40°C 3500 3000 1200 2500 COUNT 1500 900 2000 1500 600 1000 300 0 –10 –9 500 –6 –3 0 3 VOS DRIFT (µV/°C) 6 9 10 05147-034 COUNT 1800 0 –2.0 –1.5 –1.0 –0.5 0 VOS (mV) 0.5 1.0 1.5 ISHUNT RSHUNT R1 R2 VS AD8210 A1 Q1 Q2 VREF 1 VOUT = (ISHUNT × RSHUNT ) × 20 A2 GND R4 VREF 2 05147-004 R3 Data Sheet AD8210 MODES OF OPERATION The AD8210 can be adjusted for unidirectional or bidirectional operation. UNIDIRECTIONAL OPERATION Unidirectional operation allows the AD8210 to measure currents through a resistive shunt in one direction. The basic modes for unidirectional operation are ground referenced output mode and V+ referenced output mode. V+ Referenced Output This mode is set when both reference pins are tied to the positive supply. It is typically used when the diagnostic scheme requires detection of the amplifier and wiring before power is applied to the load (see Figure 29 and Table 5). RS +IN –IN In unidirectional operation, the output can be set at the negative rail (near ground) or at the positive rail (near V+) when the differential input is 0 V. The output moves to the opposite rail when a correct polarity differential input voltage is applied. In this case, full scale is approximately 250 mV. The required polarity of the differential input depends on the output voltage setting. If the output is set at ground, the polarity needs to be positive to move the output up (see Table 5). If the output is set at the positive rail, the input polarity needs to be negative to move the output down (see Table 6). VS AD8210 0.1µF VREF 1 OUTPUT G = +20 Ground Referenced Output VREF 2 When using the AD8210 in this mode, both reference inputs are tied to ground, which causes the output to sit at the negative rail when the differential input voltage is zero (see Figure 28 and Table 4). 05147-006 GND Figure 29. V+ Referenced Output RS +IN –IN Table 5. V+ = 5 V VS VIN (Referred to −IN) 0V −250 mV 0.1µF AD8210 VO 4.9 V 0.05 V BIDIRECTIONAL OPERATION VREF 1 OUTPUT G = +20 Bidirectional operation allows the AD8210 to measure currents through a resistive shunt in two directions. The output offset can be set anywhere within the output range. Typically, it is set at half scale for equal measurement range in both directions. In some cases, however, it is set at a voltage other than half scale when the bidirectional current is nonsymmetrical. VREF 2 Table 6. V+ = 5 V, VO = 2.5 V with VIN = 0 V 05147-005 GND VIN (Referred to –IN) +125 mV −125 mV VO 4.9 V 0.05 V Figure 28. Ground Referenced Output Adjusting the output can also be accomplished by applying voltage(s) to the reference inputs. Table 4. V+ = 5 V VIN (Referred to −IN) 0V 250 mV VO 0.05 V 4.9 V Rev. F | Page 11 of 16 RS –IN +IN VS 0.1µF AD8210 RS +IN VREF 1 VREF –IN 0V ≤ VREF ≤ VS VS G = +20 0.1µF OUTPUT AD8210 VREF 2 VREF 0V ≤ VREF ≤ VS GND 05147-008 VREF 1 OUTPUT G = +20 RS +IN –IN VS AD8210 0.1µF VREF 1 G = +20 OUTPUT VREF 2 GND 05147-009 GND 05147-007 VREF 2   =   −   RSHUNT < RFILTER RFILTER ≤ 10Ω RFILTER ≤ 10Ω CFILTER +IN –IN VS 0.1µF AD8210 VREF VREF 1 0V ≤ VREF ≤ VS OUTPUT G = +20 VREF 2 GND 05147-013 =  −     5V 0.1µF SWITCH BATTERY +IN VREF1 –IN GND +VS OUT AD8210 SHUNT VREF2 CLAMP DIODE NC NC = NO CONNECT 05147-011 INDUCTIVE LOAD 5V CLAMP DIODE BATTERY 0.1µF INDUCTIVE LOAD +IN VREF1 –IN GND +VS OUT AD8210 SHUNT VREF2 NC 5V 0.1µF MOTOR +IN VREF 1 –IN GND +VS CONTROLLER OUT AD8210 SHUNT VREF2 NC 5V 2.5V NC = NO CONNECT 05147-012 NC = NO CONNECT 05147-010 SWITCH 5.00 (0.1968) 4.80 (0.1890) 1 5 4 1.27 (0.0500) BSC 0.25 (0.0098) 0.10 (0.0040) COPLANARITY 0.10 SEATING PLANE 6.20 (0.2441) 5.80 (0.2284) 1.75 (0.0688) 1.35 (0.0532) 0.51 (0.0201) 0.31 (0.0122) 0.50 (0.0196) 0.25 (0.0099) 45° 8° 0° 0.25 (0.0098) 0.17 (0.0067) 1.27 (0.0500) 0.40 (0.0157) COMPLIANT TO JEDEC STANDARDS MS-012-AA CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN. 012407-A 8 4.00 (0.1574) 3.80 (0.1497)