The AD8212 is a high common-mode voltage, current shunt monitor. It accurately amplifies a small differential input voltage in the presence of large common-mode voltages up to 65 V (>500 V with an external PNP transistor).

The AD8212 is ideal for current monitoring across a shunt resistor in applications controlling loads, such as motors and solenoids. The current output of the device is proportional to the input differential voltage. The user can select an external resistor to set the desired gain. The typical common-mode voltage range of the AD8212 is 7 V to 65 V.

Another feature of the AD8212 is high voltage operation, which is achieved by using an external high voltage breakdown PNP transistor. In this configuration, the common-mode range of the AD8212 is equal to the breakdown of the external PNP transistor. Therefore, operation at several hundred volts is easily achieved (see Figure 23 in the data sheet).

The AD8212 features a patented output base current compensation circuit for high voltage operation mode. This ensures that no base current is lost through the external transistor and excellent output accuracy is maintained regardless of common-mode voltage or temperature.

Applications

Current shunt measurement

Motor controls

DC-to-DC converters

Power supplies

Battery monitoring

Remote sensing

Data Sheet, Rev. A, 11/07

Part#	Common Mode Range (V)	Bandwidth G=10 (kHz typ)	CMRR (dB)	Gain Range (min to max)	Voltage Supply (Vmin)	Voltage Supply (Vmax)	Supply Current (max)	VosiTC (µV/deg C)	Gain temp co.	Temperature Range	Package	Price* (1000-4999)
AD22057	-1 to 24	30	80	20	+3	+26	0.5mA	-	-	-40 to +125	DIP, SOIC	$4.57
AD626	0 to 54	100	66	90	±2.4	±6	2mA	0.000006	150ppm/C	-40 to +85	DIP, SOIC	$3.66
AD628	+/- 100	600	77	100	±5	±18	1.6mA	-	-	-40 to +85	SOIC	$1.76
AD629	+/- 270	500	77	1	±2.5	±18	1mA	-	-	-40 to +85	DIP, SOIC	$2.81
AD8202	-12 to 30	50	82	20	+3.5	+12	0.25mA	10	20ppm/C	-40 to +125	Die, SOIC, SOP	$1.49
AD8203	-12 to 30	60	82	14	+3.5	+12	0.25mA	10	20ppm/C	-40 to +125	SOP	$1.35
AD8205	-2 to 65	50	78	50	+4.5	+5	2mA	15	30ppm/C	-40 to +125	Die, SOIC	$1.49
AD8206	-2 to 65	100	76	20	+4.5	+5.5	2mA	15	30ppm/C	-40 to +125	Die, SOIC	$1.35
AD8210	-2 to 65	500	100	20	+4.5	+5.5	1.5mA	10	20ppm/C	-40 to 150	SOIC	$1.79
AD8211	-2 to 65	500	120	20	-	-	2mA	12	20ppm/C	-40 to +125	-	$0.80
AD8212	7 to 65	1000	100	1,000	+7	+65	720µA	10	-	-20 to +125	-	$0.92
AD8213	-2 to 65	500	100	20	+4.5	+5.5	2.5mA	12	10ppm/C	-40 to +125	-	$1.99
AD8214	5 to 65	-	80	100	+5	+65	1.2mA	15	-	-40 to +125	-	$0.75
AD8215	-2 to 65	450	100	20	-	-	2.2mA	6	15ppm/C	-40 to +125	-	$1.20
AD8216	-4 to 65	3000	90	3	-	-	-	10	10ppm/C	-40 to +125	-	$1.60
AD8228	-	560	100	90	-	-	-	-	-	-40 to +85	-	$2.99
AD8270	-Vs to +Vs	10000	98	1.5	-	-	2.5mA	1.5	1ppm/C	-40 to +125	-	$1.89
AD8273	+/- 40	20000	86	1.5	-	-	2.5mA	3	2ppm/C	-40 to +125	-	$1.65
AD8290	-	-	120	50	-	-	4.68mA	-	15ppm/C	-	-	$1.50
AD8553	-	1	100	10,000	+1.8	+5.5	1.3mA	-	-	-40 to +85	MSOP	$1.30
ADM4073	2 to 28	1800	90	40	+3	+28	-	-	-	-40 to +125	SOT	$0.99
AMP03	+/- 20	3000	85	1	±5	±15	2.5mA	-	-	-40 to +85	-	$2.78

* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S. Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.

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• Production: The model is currently being produced, and generally available for purchase and sampling.
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• Obsolete: The specific part is obsolete and no longer available. Other models listed in the table may still be available (if they have a status that is not obsolete).

The package for this IC (i.e. DIP, SOIC, BGA). An Evaluation Board is a board engineered to show the performance of the model, the part is included on the board.

For detailed drawings and chemical composition please consult our  Package Site

Pin Count is the number of pins, balls, or pads on the device. Pin-out diagrams & pin function descriptions may be found in the datasheet.

This is the acceptable operating range of the device. The various ranges specified are as follows:

• Commercial: 0 to +70 degrees Celsius
• Military : -55 to +125 degrees Celsius
• Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
• Automotive: -40 to +125 degrees Celsius

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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