The AD629 is a difference amplifier with a very high input, common-mode voltage range. It is a precision device that allows the user to accurately measure differential signals in the presence of high common-mode voltages up to ±270 V.

The AD629 can replace costly isolation amplifiers in applications that do not require galvanic isolation. The device operates over a ±270 V common-mode voltage range and has inputs that are protected from common-mode or differential mode transients up to ±500 V.

The AD629 has low offset, low offset drift, low gain error drift, low common-mode rejection drift, and excellent CMRR over a wide frequency range.

The AD629 is available in low cost, 8-lead PDIP and 8-lead SOIC packages. For all packages and grades, performance is guaranteed over the industrial temperature range of −40°C to +85°C.

Applications

High voltage current sensing

Battery cell voltage monitors

Power supply current monitors

Motor controls

Isolation

Data Sheet, Rev. B, 2/07

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.

The model number is a specific version of a generic that can be purchased or sampled.

Status indicates the current lifecycle of the product. This can be one of 4 stages:

• Pre-Release: The model has not been released to general production, but samples may be available.
• Production: The model is currently being produced, and generally available for purchase and sampling.
• Last Time Buy: The model has been scheduled for obsolescence, but may still be purchased for a limited time.
• 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.

This is the date Analog Devices, Inc. anticipates that the product will ship from the warehouse. Most orders ship within 48 hours of this date.Once an order has been placed, Analog Devices, Inc. will send an Order Acknowledgement email to confirm your delivery date. It is important to note the scheduled dock date on the order entry screen. We do take orders for items that are not in stock, so delivery may be scheduled at a future date. Also, please note the warehouse location for the product ordered. We have warehouses in the United States, Europe and Southeast Asia. Transit times from these sites may vary.

Due to environmental concerns, ADI offers many of our products in lead-free versions. For more information about lead-free parts, please consult our Pb (Lead) free information page.