AD8212: 高電圧の電流シャント・モニタ

Transcription

1 7 V typ 7 0 V MSOP : 40 V+ V SENSE DC/DC BIAS CIRCUIT CURRENT COMPENSATION I OUT COM BIAS ALPHA V PNP 0 7 V typ PNP PNP REV. A REVISION 007 Analog Devices, Inc. All rights reserved MT 0 0

2 /07 Rev. 0 to Rev. A /07 Revision 0: Initial Version

3 V S V T OPR 40 T A Parameter Conditions/Comments Min Typ Max Unit SUPPLY VOLTAGE (V+) No external pass transistor 7 V With external PNP transistor 7 >00 V SUPPLY CURRENT (I SUPPLY = I OUT + I BIAS ) V+ = 7 V to V 0 70 µa High voltage operation, using external PNP µa VOLTAGE OFFSET Offset Voltage (RTI) T A ± mv Over Temperature (RTI) T OPR ± mv Offset Drift T OPR ±0 µv/ INPUT Input Impedance Differential kω Common Mode (V CM ) V+ = 7 V to V MΩ Voltage Range Differential Maximum voltage between V+ and V SENSE 00 mv V SENSE (Pin ) Current V+ = 7 V to V, T OPR na Transconductance 000 µa/v Current Range (I OUT ) 7 V V+ V, 0 mv to 00 mv differential input 00 µa Gain Error for T OPR 7 V V+ V, with respect to 00 µa full scale ± % Impedance 0 MΩ Voltage Range 0 V+ V REGULATOR Nominal Value 7 V V+ V V PSRR 7 V V+ V 0 db Bias Current (I BIAS ) T OPR, 7 V V+ V 00 µa T OPR, high voltage operation µa DYNAMIC RESPONSE Small Signal db Bandwidth Gain = khz Gain = 0 00 khz Gain = 0 00 khz Settling Time Within 0.% of the true output, gain = 0 µs ALPHA PIN INPUT CURRENT µa NOISE 0. Hz to 0 Hz, RTI. µv p-p Spectral Density, khz, RTI 40 nv/ Hz TEMPERATURE RANGE For Specified Performance (T OPR ) 40 + V CE V 7 V I OUT I BIAS 0 00µA I BIAS µa 00µA PNP V SENSE PNP

4 T OPR 40 ESD Parameter Supply Voltage Continuous Input Voltage Reverse Supply Voltage Operating Temperature Range Storage Temperature Range Output Short-Circuit Duration Rating V V 0. V 40 to + 40 to +0 Indefinite ESD ESD ESD

5 V+ COM BIAS NC 4 TOP VIEW (Not to Scale) NC = NO CONNECT 7 V SENSE NC ALPHA I OUT X Y V COM 9 +7 BIAS NC I OUT + ALPHA NC + + V SENSE + +0

6 T = + C 000 (µa) CURRENT QUIESCENT T = + C T = 40 C INPUT V O S (µv) SUPPLY VOLTAGE (V) TEMPERATURE ( C) V I OUT 0mA C (V) REGULATOR VOLTAGE T = + C T = + C T = 40 C (mv) RTI VOLTAGE OFFSET C 40 C SUPPLY VOLTAGE (V) VOLTAGE SUPPLY (V) V. V GAIN (db) G = +0 G = +0 G = +0 CURRENT DRIFT (na/ C) k 0k 00k M 0M FREQUENCY (Hz) DIFFERENTIAL INPUT VOLTAGE (mv)

7 00 0mV/DIV 0 ERROR (%) 0. G = +0 G = +0 G = +0 00mV/DIV V+ = V R OUT = 0kΩ DIFFERENTIAL INPUT VOLTAGE (mv) μs/div mV/DIV 00mV/DIV 0mV/DIV V+ = V R OUT = kω 00mV/DIV V+ = V R OUT = kω µs/div µs/div mV/DIV 00mV/DIV V+ = V R OUT = 0kΩ V+ = V R OUT = 0kΩ 00mV/DIV V/DIV µs/div µs/div

8 . 00mV/DIV V/DIV V+ = V R OUT = 0kΩ (V) REGULATOR VOLTAGE T = 40 C T = + C T = + C µs/div BIAS CURRENT (µa) I OUT 0mA. 00mV/DIV (V). V/DIV V+ = V R OUT = 0kΩ REGULATOR VOLTAGE V+ = 0 V+ = 0 V+ = 0 µs/div TEMPERATURE ( C) mV/DIV (V) 400 µs/div V/DIV V+ = V R OUT = 0kΩ V+ OPERATING RANGE V+ MAXIMUM RANGE 0 V+ MINIMUM RANGE R BIAS (kω) V

9 BATTERY R SHUNT I LOAD V 7 V R SHUNT A A COM V R Q A R LOAD A Q R Q I OUT V SENSE R SHUNT I LOAD I OUT I OUT (g m V SENSE ) V SENSE I LOAD R SHUNT I OUT R OUT (V SENSE R OUT )/000 g m 000µA/V GND I BIAS 7 V V µa typ. 7 VV 7 V 7V V V V % 4 R OUT 4. VOUT R OUT I OUT R OUT BIAS CIRCUIT Gain (V/V) R OUT (kω) CURRENT COMPENSATION

10 PNP V PNP V CE 0 PNP BATTERY R SHUNT I BIAS R BIAS V 0 R BIAS 00kΩ I BIAS (V V)/R BIAS I BIAS (00 )/00kΩ 990µA R A R LOAD I BIAS 00µA ma ma I BIAS V 9 Q Q FET PNP PNP PNP R OUT I OUT BIAS CIRCUIT CURRENT COMPENSATION PNP FET PNP Q VOUT R OUT. PNP V COM V V V 0 COM (V+) V 9V R BIAS Q V be Q 9.V 9V (V be(q) ) 9V.V 9.V PNP Q ALPHA R R R A A Q R I OUT Q R R Q I OUT Q I OUT PNP β Q Q 0 9.V.V Q 9.V Q

11 R OUT BATTERY V+ COM BIAS ALPHA 4 NC I LOAD R SHUNT V SENSE NC 7 I OUT LOAD AD ADC 0 PNP PNP FET PNP PNP I LOAD I OUT R OUT R SHUNT NOTES. NC = NO CONNECT. 4. (V ) V 00µA 00mV R OUT V+ V SENSE COM NC 7 BIAS ALPHA 4 NC I OUT 00kΩ LOAD R OUT VOUT. NOTES. TRANSISTOR V CE BREAKDOWN VOLTAGE MUST BE 0.. NC = NO CONNECT. PNP BATTERY I MOTOR V+ V SENSE COM NC 7 4 BIAS NC ALPHA I OUT MOTOR R OUT NOTES. NC = NO CONNECT

12 7 I LOAD I CHARGE I LOAD I CHARGE R SHUNT BATTERY V+ V SENSE V SENSE V+ LOAD CURRENT COMPENSATION CURRENT COMPENSATION I OUT COM BIAS ALPHA ALPHA BIAS COM I OUT R OUT R OUT CHARGE BIAS CIRCUIT BIAS CIRCUIT 7.

13 PIN 0. BSC COPLANARITY MAX SEATING PLANE D094-0-/07(A)-J. COMPLIANT TO JEDEC STANDARDS MO-7-AA MSOP RM- mm Model Temperature Range Package Description Package Option Branding YRMZ 40 to + -Lead MSOP RM- Y04 YRMZ-RL 40 to + -Lead MSOP, " Tape and Reel RM- Y04 YRMZ-R7 40 to + -Lead MSOP, 7" Tape and Reel RM- Y04 Z RoHS