ad7466-kgd Analog Devices, Inc., ad7466-kgd Datasheet

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ad7466-kgd

Manufacturer Part Number
ad7466-kgd
Description
1.6 V, Micropower 12-bit Adc
Manufacturer
Analog Devices, Inc.
Datasheet
Known Good Die
FEATURES
Specified for V
Low power
Fast throughput rate: 200 kSPS
Wide input bandwidth: 71 dB SNR at 30 kHz input frequency
Flexible power/serial clock speed management
No pipeline delays
High speed serial interface
Automatic power-down
Power-down mode: 8 nA typical
APPLICATIONS
Battery-powered systems
Medical instruments
Remote data acquisition
Isolated data acquisition
GENERAL DESCRIPTION
The
successive approximation analog-to-digital converter (ADC).
The part operates from a single 1.6 V to 3.6 V power supply and
features throughput rates up to 200 kSPS with low power
dissipation. The part contains a low noise, wide bandwidth
track-and-hold amplifier, which can handle input frequencies in
excess of 3 MHz.
The conversion process and data acquisition are controlled
using CS and the serial clock, allowing the device to interface
with microprocessors or DSPs. The input signal is sampled on
the falling edge of CS , and the conversion is also initiated at this
point. There are no pipeline delays associated with the part.
The reference for the part is taken internally from V
allows the widest dynamic input range to the ADC. Thus, the
analog input range for the part is 0 V to V
rate is determined by the SCLK.
1
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
Protected by U.S. Patent No. 6,681,332.
0.62 mW typical at 100 kSPS with 3 V supplies
0.48 mW typical at 50 kSPS with 3.6 V supplies
0.12 mW typical at 100 kSPS with 1.6 V supplies
SPI/QSPI™/MICROWIRE™/DSP compatible
AD7466-KGD
DD
of 1.6 V to 3.6 V
1
are 12-bit, high speed, low power,
DD
. The conversion
DD
. This
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
PRODUCT HIGHLIGHTS
1.
2.
3.
4.
5.
6.
1.6 V, Micropower 12-Bit ADC
Specified for supply voltages of 1.6 V to 3.6 V.
High throughput rate with low power consumption.
Power consumption in normal mode of operation at
100 kSPS and 3 V is 0.9 mW maximum.
Flexible power/serial clock speed management.
The conversion rate is determined by the serial clock,
allowing the conversion time to be reduced through
increases in the serial clock speed. Automatic power-down
after conversion allows the average power consumption to
be reduced when in power-down. Current consumption is
0.1 μA maximum and 8 nA typically when in power-down.
Reference derived from the power supply.
No pipeline delay.
The part features a standard successive approximation
ADC with accurate control of conversions via a CS input.
V
IN
FUNCTIONAL BLOCK DIAGRAM
T/H
©2011 Analog Devices, Inc. All rights reserved.
APPROXIMATION
AD7466-KGD
SUCCESSIVE
CONTROL
12-BIT
LOGIC
Figure 1.
ADC
V
GND
DD
AD7466-KGD
www.analog.com
SCLK
SDATA
CS

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ad7466-kgd Summary of contents

Page 1

... ADC with accurate control of conversions via a CS input. . The conversion DD One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 Fax: 781.461.3113 AD7466-KGD FUNCTIONAL BLOCK DIAGRAM V DD 12-BIT SUCCESSIVE V T/H IN APPROXIMATION ADC CONTROL LOGIC AD7466-KGD GND Figure 1. ©2011 Analog Devices, Inc. All rights reserved. SCLK SDATA CS www.analog.com ...

Page 2

... AD7466-KGD TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Product Highlights ........................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Timing Specifications .................................................................. 5 REVISION HISTORY 11/11—Revision 0: Initial Version   Timing Examples...........................................................................6   Absolute Maximum Ratings ............................................................7   ESD Caution...................................................................................7   Pad Configuration and Function Descriptions .............................8   Outline Dimensions ..........................................................................9   ...

Page 3

... V ±1 μA ±1 μ − 0 0.2 V ±1 μ Straight (natural) binary Rev Page AD7466-KGD = unless otherwise noted. MIN MAX Test Conditions/Comments kHz sine wave IN 1.8 V ≤ V ≤ 2.5 V ≤ V ≤ 1.8 V ≤ V ≤ 1.8 V ≤ ...

Page 4

... AD7466-KGD Parameter CONVERSION RATE Conversion Time Throughput Rate POWER REQUIREMENTS Normal Mode (Operational) Power-Down Mode Power Dissipation Normal Mode (Operational) Power-Down Mode Min Typ Max Unit 4.70 μs 200 kSPS 1.6 3.6 V 300 μA 110 μA 20 μA 240 μA 80 μA 16 μA 165 μ ...

Page 5

... OL TO OUTPUT PIN C L 50pF 200µ Figure 2. Load Circuit for Digital Output Timing Specifications Rev Page AD7466-KGD at which specifications are guaranteed. SCLK at which specifications are guaranteed. at which specifications are guaranteed. = 1.6 V and f = 3.4 MHz, t has to be 192 ns DD SCLK ...

Page 6

... Point B in Figure 3. t CONVERT TRACK-AND-HOLD IN HOLD 1/THROUGHPUT FULLY ACQUIRED. IN Figure 3. AD7466-KGD Serial Interface Timing Diagram Example Rev Page Known Good Die can also operate with slower clock frequencies SCLK CONVERT = t + 15(1 7.5 μs = 7.55 μs, CONVERT ...

Page 7

... maximum rating conditions for extended periods may affect −0 0 device reliability. −0 −0 0 ±10 mA ESD CAUTION −40°C to +85°C −65°C to +150°C 150°C 215°C 220°C 3.5 kV Rev Page AD7466-KGD ...

Page 8

... All analog input signals should be referred to this GND voltage. V Double Power Supply Input. The Double Power Supply Input. The V DD Rev Page Known Good Die AD7466-KGD AD7466-KGD range for the devices is from 1 3 range for the devices is from 1 3 ...

Page 9

... Silicon Nitride 76 × 76 98.5% Al, 1% Si, 0.5% Cu 3.5 Recommendation Epoxy adhesive Gold ball or aluminum wedge Five First Package Description 6-Pad Bare Die [CHIP] Rev Page AD7466-KGD Unit μm μm μm μm Not applicable Not applicable μ Package Option C-6-4 ...

Page 10

... AD7466-KGD NOTES Rev Page Known Good Die ...

Page 11

... Known Good Die NOTES Rev Page AD7466-KGD ...

Page 12

... AD7466-KGD NOTES ©2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D10315-0-11/11(0) Rev Page Known Good Die ...

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