Visit the AD5933/34 Impedance to Digital Converter Demonstration/Configuration Assistant ... This tool is both a demonstration and design tool for the AD5933 and AD5934 impedance converter parts. It demonstrates the steps needed to configure and use the parts before purchasing an evaluation board. A design mode is also available which permits free control of the user interface and the calculation of values for programming the internal registers.

The AD5934 is a high precision impedance converter system solution that combines an on-board frequency generator with a 12-bit, 250 kSPS, analog-to-digital converter (ADC). The frequency generator allows an external complex impedance to be excited with a known frequency. The response signal from the impedance is sampled by the on-board ADC and a discrete Fourier transform (DFT) is processed by an on-board DSP engine. The DFT algorithm returns a real (R) and imaginary (I) data-word at each output frequency.

Once calibrated, the magnitude of the impedance and relative phase of the impedance at each frequency point along the sweep is easily calculated using the following two equations:

Magnitude = √ R² + I²
Phase = Tan^-1 (I/R)

A similar device, available from Analog Devices, Inc., is the AD5933, which is a 2.7 V to 5.5 V, 1 MSPS, 12-bit impedance converter, with an internal temperature sensor, available in a 16-lead SSOP.

Applications

Electrochemical analysis

Bioelectrical impedance analysis

Impedance spectroscopy

Complex impedance measurement

Corrosion monitoring and protection equipment

Biomedical and automotive sensors

Proximity sensing

Nondestructive testing

Material property analysis

Fuel/battery cell condition monitoring

Data Sheet, Rev. A, 5/08

Part#	Master fclk	Resolution (Bits)	Tuning Word Width (bits)	Nominal Supply (V)	I Supply total (max)	FS Iout (mA nom)	Compliance Range (V)	REFCLK Multiplier	On-Board Comparator	I/O Interface	Price* (1000-4999)	Product Description
AD9913	250MHz	10	32	Single(+1.8)	63.5mA	4.6	0.8	Yes	No	Parallel, Serial	$9.65	Low power 250 MSPS DDS with 10 bit DAC output
AD9833	25MHz	10	28	Single(+2.3 to +5.5), Single(+2.5), Single(+2.7), Single(+3), Single(+3.3), Single(+3.6), Single(+5)	5.5mA	3	0.65	No	No	Serial	$3.95	25 MHz, Serial Input, Programmable DDS Waveform Generator
AD9831	25MHz	10	32	Single(+3.3), Single(+3.6), Single(+5)	15mA	4	1.5	No	No	Parallel	$6.25	CMOS, 25 MHz Parallel Input DDS with On-Chip 10-Bit DAC & Sine Lookup Table
AD9832	25MHz	10	32	Single(+3.3), Single(+3.6), Single(+5)	15mA	4	1.35	No	No	Serial	$5.00	CMOS, 25 MHz Serial Input DDS with On-Chip 10-Bit DAC & Sine Lookup Table
AD5930	50MHz	10	24	Single(+2.3 to +5.5)	8mA	3.1	0.8	No	No	Serial	$6.30	Programmable Frequency Sweep and Output Burst Waveform Generator
AD5932	50MHz	10	24	Single(+2.3 to +5.5)	8mA	n/a	n/a	Yes	No	Serial	$4.10	Programmable Single-Scan Waveform Generator
AD9830	50MHz	10	32	Single(+5)	60mA	20	1	No	No	Parallel	$10.95	CMOS, 50 MHz Parallel Load DDS with On-Chip 10-Bit DAC & Sine Lookup Table
AD9835	50MHz	10	32	Single(+5)	40mA	4	1.35	No	No	Serial	$5.75	CMOS, Serial Input, 50 MHz DDS with On-Chip 10-Bit DAC
AD9834	75MHz	10	28	Single(+2.3 to +5.5), Single(+2.5), Single(+2.7), Single(+3), Single(+3.3), Single(+3.6), Single(+5)	8.7mA	3	0.8	No	Yes	Serial	$4.95	Low Power, 50 MHz Serial Input DDS With On-Board Comparator
AD9850	125MHz	10	32	Single(+3.3), Single(+5)	96mA	20	1.5	No	Yes	Parallel, Serial	$12.00	CMOS, 125 MHz Serial/Byte-Parallel Input, Complete DDS
AD9851	180MHz	10	32	Single(+3), Single(+3.3), Single(+3.6), Single(+5)	130mA	20	1.5	Yes	Yes	Parallel, Serial	$13.40	180 MHz Complete DDS
AD9852	300MHz	12	48	Single(+3.3)	922mA	20	1	Yes	Yes	Parallel, Serial	$15.40	CMOS, 300 MSPS Complete DDS w/ Clock Multiplier
AD9854	300MHz	12	48	Single(+3.3)	1210mA	10	1	Yes	Yes	Parallel, Serial	$16.90	CMOS 300 MHz, Quadrature, Complete-DDS
AD9859	400MHz	10	32	Multi(+1.8, +3.3)	n/a	20	2.05	Yes	No	Serial	$9.75	400 MSPS, 10-Bit, 1.8 V CMOS DDS
AD9951	400MHz	14	32	Multi(+1.8, +3.3), Single(+1.8)	n/a	10	2.05	Yes	No	Serial	$13.74	400 MSPS 14-Bit, 1.8 V CMOS DDS
AD9952	400MHz	14	32	Multi(+1.8, +3.3), Single(+1.8)	n/a	10	2.05	Yes	Yes	Serial	$15.49	400 MSPS, 14-Bit, 1.8 V, CMOS Direct Digital Synthesizer w/High Speed Comparator
AD9953	400MHz	14	32	Multi(+1.8, +3.3), Single(+1.8)	n/a	10	2.05	Yes	No	Serial	$14.74	400 MSPS, 14-Bit DAC, 1.8 V CMOS Direct Digital Synthesizer w/ 1024x32 RAM
AD9954	400MHz	14	32	Multi(+1.8, +3.3), Single(+1.8)	n/a	10	2.05	Yes	Yes	Serial	$17.24	400 MSPS, 14-Bit, 1.8V CMOS DDS w/ 1024x32 RAM, Linear Sweep Block, & Hi Speed Comparator
AD9956	400MHz	14	48	Multi(+1.8, +3.3)	n/a	10	2.3	No	No	Serial	$17.24	400 MSPS, 14-Bit DAC, 48-Bit Freq Tuning Word, 1.8 V CMOS DDS Based AgileRF™ Synthesizer
AD9958	500MHz	10	32	Multi(+1.8, +3.3)	105mA	10	2.3	Yes	-	Serial	$20.24	2-Channel 500 MSPS DDS with 10-Bit DACs
AD9911	500MHz	10	32	Single(+1.8)	73mA	10	1.8	Yes	-	Serial	$15.50	500 MSPS Direct Digital Synthesizer w/10-Bit DAC
AD9959	500MHz	10	32	Multi(+1.8, +3.3)	180mA	10	2.3	Yes	-	Serial	$37.14	-
AD9858	1000MHz	10	32	Multi(+3.3, +5)	n/a	40	3.8	No	No	Parallel, Serial	$45.12	1 GSPS Direct Digital Synthesizer
AD9910	1000MHz	14	32	Single(+1.8), Single(+3.3)	n/a	20	0.5	Yes	No	Parallel, Serial	$34.91	1 GSPS, 14-Bit, 3.3 V CMOS Direct Digital Synthesizer
AD9912	1000MHz	14	48	Multi(+1.8, +3.3)	394mA	-	0.5	Yes	Yes	Serial	$37.25	1 GSPS 14-Bit, DDS with Spur Reduction Channels

* 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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