MAX40204
36V, Pin-Programmable Gain, Bidirectional CSA
Increase Your Measurement Accuracy by 10x with On-the-Fly Selectable Gain
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Overview
Features and Benefits
- -0.1V to 36V Wide Input Common Mode
- Ultra-Low, 2μV Input Offset Voltage
- On-the-Fly Gain Setting Input
- Bidirectional/Unidirectional Current Sensing
- 20nA (max) Input Bias Current
- Extremely Low, 50nV/°C Input Offset Tempco
- 0.05% Gain Error
- 21μA Supply Current
- 70nA (typ) Shutdown Current
- 1.7V to 5.5V Single Supply Operating Range
- Space-Saving 8-Bump WLP and 8-Pin TDFN Packages
Product Details
The MAX40204 is a high-precision, bidirectional, high-side current-sense amplifier (CSA) with a wide input common-mode range from -0.1V (ground sensing) to 36V.
The device’s ultra-low 2μV input offset voltage allows the use of small sense resistor to reduce power dissipation and a very low, 0.05% gain error ensures measurement accuracy.
The MAX40204 offers two gain options using a logic-level input (GAIN) that provides the flexibility to change the gain on the fly. On-the-fly gain adjustment capability allows the system to enhance accuracy when measuring current much smaller than set full-scale level. See Table 1 for gain configurations. Additionally, the MAX40204 supports unidirectional and bidirectional current sensing with an external voltage applied to a reference input, REF.
The MAX40204 operates with single-supply in the range of 1.7V to 5.5V while consuming only 21μA. Low operating supply current and 70nA (typ) shutdown current help extend battery life and make the MAX40204 ideal for portable and battery-operated devices.
The MAX40204 is available in a small 8-bump, 0.35mm-pitch WLP (1.468mm x 0.848mm) and 8-pin TDFN (2mm x 2mm) packages and is specified over the -40°C to +125°C extended operating temperature range.
Applications
- Base Station
- Current Sensing in Power Management Systems
- Medical Instruments
- Notebook Computers
- Portable and Battery-Operated Systems
- Smart Phones and Tablets
Product Categories
Product Lifecycle
Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
Documentation & Resources
Tools & Simulations
SPICE Model
Product Recommendations
MAX40204 Companion Parts
Recommended Related Parts
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| MAX40204ANA+ | Material Declaration | Reliability Data | 8-WLCSP-N/A | |
| MAX40204ANA+T | Material Declaration | Reliability Data | 8-WLCSP-N/A | |
| Wafer Fabrication Data |
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.