July 2022 New Product Announcement ZXCT199 High-Precision and Bidirectional Current Monitor for Accurate High-/Low-Side Current Measurement TM The DIODES ZXCT199 current monitor is a single-stage instrumentation amplifier designed to accurately measure very small sense voltages across a wide range of common-mode voltages. Its applications include current sensing of load currents in power supplies, motor controlling, and monitoring of charge and discharge currents in battery-powered equipment. The ZXCT199s low offset voltage with zero-drift architecture enables it to achieve current sensing with maximum drops across the shunt resistor, to as low as 10mV full- scale, and thereby allowing the use of small-value sense resistors to monitor large currents. The device is available in three fixed- TM The DIODES Advantage voltage gain options: 50V/V, 100V/V, and 200V/V. Each option has a wide -0.1V to +26V commonmode sense input voltage High-precision current monitor supports large current range, independent of supply voltage. measurement with small V resistors and voltages. SENSE All ZXCT199 variants operate from a 2.7V Offset Voltage as Low as 80V to 26V power supply, with a maximum of Minimizes errors when using low-value sense resistors 100A of supply current. The device Gain Error as Low as 0.8% operates across a -40C to 125C Maintains accurate gain control across temperature and temperature range, and is packaged in the common-mode voltage industry-standard SOT363 package. Common Mode Range: -0.1 to 26V Accurately measures high-side and low-side currents, including short-circuited loads Wide Operating Voltage Range: 2.7 to 26V Provides options for powering separately or from a monitored supply Robust ESD Capability (HBM: 5kV, CDM: 1.5kV) Improves system reliability Applications The Diodes logo is a registered trademark of Diodes Incorporated in the United States and other countries High-/low-side current sensing, Power-management DIODES is a trademark of Diodes Incorporated in the including short-circuits devices United States and other countries. Laptop PCs Servers 2022 Copyright Diodes Incorporated. All Rights Battery chargers 12V motor controls Reserved. diodes.comJune 2022 New Product Announcement ZXCT199 Typical Application Product Portfolio Common-Mode Operating Supply Gain Maximum Sense Input CMRR Temperature Part Number Voltage Gain Error Vos Package Voltage Range (dB) Range (V) (%) (V) (V) C ZXCT199A1 50 150 90 ZXCT199A2 100 1 150 100 ZXCT199A3 200 150 105 ZXCT199B1 50 100 90 ZXCT199B2 -0.1 to 26 2.7 to 26 100 1 100 100 -40 to 125 SOT363 ZXCT199B3 200 100 105 ZXCT199C1 50 80 90 ZXCT199C2 100 0.8 80 100 ZXCT199C3 200 80 105 * Independent of supply voltage. Ordering Information Packing Orderable Offset Gain Moisture Package Part Number (V) (V/V) Sensitivity Qty. Carrier ZXCT199A1DW-7 150 50 SOT363 MSL-1 3000 7 Tape & Reel ZXCT199A2DW-7 150 100 SOT363 MSL-1 3000 7 Tape & Reel ZXCT199A3DW-7 150 200 SOT363 MSL-1 3000 7 Tape & Reel 50 ZXCT199B1DW-7 100 SOT363 MSL-1 3000 7 Tape & Reel ZXCT199B2DW-7 100 100 SOT363 MSL-1 3000 7 Tape & Reel ZXCT199B3DW-7 100 200 SOT363 MSL-1 3000 7 Tape & Reel ZXCT199C1DW-7 80 50 SOT363 MSL-1 3000 7 Tape & Reel 100 ZXCT199C2DW-7 80 SOT363 MSL-1 3000 7 Tape & Reel ZXCT199C3DW-7 80 200 SOT363 MSL-1 3000 7 Tape & Reel diodes.com