MAX9611AUB+T

Part: MAX9611/MAX9612 (MAX9611AUB+T) — Maxim Integrated

Type: High-Side Current-Sense Amplifier with 12-Bit ADC and Op-Amp/Comparator

Description: 0–60 V common-mode, high-side current-sense amplifier with an integrated I²C 12-bit, 500 sps ADC and a configurable op-amp/comparator, operating from 2.7–5.5 V.

Operating Conditions:

• Supply voltage: 2.7–5.5 V
• Operating temperature: -40 to +125 °C
• Input common-mode voltage range: 0–60 V
• I²C clock: up to 400 kHz

Absolute Maximum Ratings:

• VCC to GND: -0.3 to +6 V
• RS+, RS-, OUT to GND: -0.3 to +65 V
• Differential input voltage (RS+ - RS-): ±65 V
• Continuous current into any pin: ±20 mA
• Junction temperature: +150 °C
• Storage temperature: -65 to +150 °C

Key Specs:

• Quiescent current: 1.6 mA typ, 2.6 mA max (VCC = 3.3 V)
• Shutdown current: 5 μA typ, 10 μA max
• Current-sense input offset (ADC path, gain 8x): 0.045 mV typ, 0.5 mV max at +25 °C; 2 mV max over -40 to +125 °C
• Gain error (gain 8x): 0.1% typ, 0.5% max at +25 °C; 2.5% max over -40 to +125 °C
• CMRR (gain 8x, +25 °C): 106 dB min, 120 dB typ
• Full-scale sense voltage: 55 mV (8x), 110 mV (4x); 440 mV for 1x gain per the general description
• ADC: 12-bit, 2 ms conversion time; LSB 13.44 μV (8x), 26.88 μV (4x), 107.50 μV (1x)
• Op-amp/comparator: gain bandwidth 2.5 MHz, comparator propagation delay 1.5 μs, hysteresis 8 mV
• Temperature measurement: 0.48 °C LSB, -40 to +125 °C range

Features:

• 0 V to +60 V input common-mode voltage range
• Integrated 12-bit ADC measuring VSENSE, VRSCM, VOUT, VSET and die temperature
• Op amp or comparator gain block
• I²C bus with 16 addresses, compatible with 1.8 V and 3.3 V logic
• Software shutdown
• MAX9611 noninverting; MAX9612 inverting

Applications:

• Hybrid automotive power supplies
• Server backplanes
• Base-station PA control
• Base-station feeder cable bias-T
• Telecom cards
• Battery-operated equipment

Package:

• 10-pin μMAX (3 mm x 5 mm)

• S 0V to +60V Input Common-Mode Voltage Range
• S 2.7V to 5.5V Power-Supply Range, Compatible with 1.8V and 3.3V Logic
• S 5μA Software Shutdown Current
• S Integrated 12-Bit ADC
• S 13μV Current-Sense ADC Resolution
• S 500μV (max) Current-Sense ADC Input Offset Voltage
• S 0.5% (max) Current-Sense ADC Gain Error
• S I 2 C Bus with 16 Addresses
• S Small, 3mm x 5mm 10-Pin μMAX Package
• S -40 N C to +125 N C Operating Temperature Range

Hybrid Automotive Power Supplies

Server Backplanes Base-Station PA Control Base-Station Feeder Cable Bias-T Telecom Cards

Battery-Operated Equipment

F MAX is a registered trademark of Maxim Integrated Products, Inc.

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(VCC = 3.3V, VRS+ = VRS- = +12V, VSENSE = (VRS+ - VRS-) = 0V, TA = -40 N C to +125 N C, unless otherwise noted. Typical values are at TA = +25 N C.) (Note 2)

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F MAX Package Junction-to-Ambient

Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a fourlayer board. For detailed information on package thermal consideration, refer to www.maxim-ic.com/thermal-tutorial .

Stresses beyond those listed under 'Absolute Maximum Ratings' may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

Functional Diagrams appear at end of data sheet.

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Maxim Integrated Products 1

For the latest package outline information and land patterns, go to www.maxim-ic.com/packages. Note that a '+', '#', or '-' in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status.

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