AD7470ARUZ Analog Devices Inc, AD7470ARUZ Datasheet

IC ADC 10BIT PARALLEL 24-TSSOP

AD7470ARUZ

Manufacturer Part Number
AD7470ARUZ
Description
IC ADC 10BIT PARALLEL 24-TSSOP
Manufacturer
Analog Devices Inc
Datasheet

Specifications of AD7470ARUZ

Data Interface
Parallel
Number Of Bits
10
Sampling Rate (per Second)
1.75M
Number Of Converters
1
Power Dissipation (max)
12mW
Voltage Supply Source
Analog and Digital
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
24-TSSOP (0.173", 4.40mm Width)
Resolution (bits)
10bit
Input Channel Type
Single Ended
Supply Voltage Range - Analogue
2.7V To 5.25V
Supply Voltage Range - Digital
2.7V To 5.25V
Supply
RoHS Compliant
Sampling Rate
1.75MSPS
Rohs Compliant
Yes
Number Of Elements
1
Resolution
10Bit
Architecture
SAR
Sample Rate
1.75MSPS
Input Polarity
Unipolar
Input Type
Voltage
Rated Input Volt
2.5V
Differential Input
No
Power Supply Requirement
Analog and Digital
Single Supply Voltage (typ)
3/5V
Single Supply Voltage (min)
2.7V
Single Supply Voltage (max)
5.25V
Dual Supply Voltage (typ)
Not RequiredV
Dual Supply Voltage (min)
Not RequiredV
Dual Supply Voltage (max)
Not RequiredV
Power Dissipation
12mW
Differential Linearity Error
±0.9LSB
Integral Nonlinearity Error
±1LSB
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
24
Package Type
TSSOP
Input Signal Type
Single-Ended
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AD7470ARUZ-REEL7
Manufacturer:
ADI
Quantity:
10
a
GENERAL DESCRIPTION
The AD7470/AD7472 are 10-bit/12-bit high speed, low power,
successive approximation ADCs. The parts operate from a single
2.7 V to 5.25 V power supply and feature throughput rates up to
1.5 MSPS for the 12-bit AD7472 and up to 1.75 MSPS for the
10-bit AD7470. The parts contain a low noise, wide bandwidth
track-and-hold amplifier that can handle input frequencies in
excess of 1 MHz.
The conversion process and data acquisition are controlled
using standard control inputs, allowing easy interfacing to
microprocessors or DSPs. The input signal is sampled on the
falling edge of CONVST, and conversion is also initiated at
this point. BUSY goes high at the start of conversion and
goes low 531.66 ns after falling edge of CONVST (AD7472
with a clock frequency of 26 MHz) to indicate that the con-
version is complete. There are no pipeline delays associated
with the parts. The conversion result is accessed via standard
CS and RD signals over a high speed parallel interface.
The AD7470/AD7472 use advanced design techniques to
achieve very low power dissipation at high throughput rates. With
3 V supplies and 1.5 MSPS throughput rates, the AD7470
typically consumes, on average, just 1.1 mA. With 5 V supplies
and 1.75 MSPS, the average current consumption is typically
1.6 mA. The part also offers flexible power/throughput rate
management. Operating the AD7470 with 3 V supplies and
500 kSPS throughput reduces the current consumption to 713 µA.
At 5 V supplies and 500 kSPS, the part consumes 944 µA.
REV. B
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. 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.
FEATURES
Specified for V
1.75 MSPS for AD7470 (10-Bit)
1.5 MSPS for AD7472 (12-Bit)
Low Power
Wide Input Bandwidth
70 dB Typ SNR at 500 kHz Input Frequency
Flexible Power/Throughput Rate Management
No Pipeline Delays
High Speed Parallel Interface
Sleep Mode: 50 nA Typ
24-Lead SOIC and TSSOP Packages
AD7470: 3.34 mW Typ at 1.5 MSPS with 3 V Supplies
AD7472: 3.54 mW Typ at 1.2 MSPS with 3 V Supplies
7.97 mW Typ at 1.75 MSPS with 5 V Supplies
8.7 mW Typ at 1.5 MSPS with 5 V Supplies
DD
of 2.7 V to 5.25 V
It is also possible to operate the parts in an auto sleep mode,
where the part wakes up to do a conversion and automatically
enters sleep mode at the end of conversion. This method allows
very low power dissipation numbers at lower throughput rates.
In this mode, the AD7472 can be operated with 3 V supplies at
100 kSPS, and consume an average current of just 124 µA. At
5 V supplies and 100 kSPS, the average current consumption is
171 µA.
The analog input range for the part is 0 V to REF IN. The 2.5 V
reference is applied externally to the REF IN pin. The conver-
sion rate is determined by the externally-applied clock.
PRODUCT HIGHLIGHTS
1. High Throughput with Low Power Consumption. The
2. Flexible Power/Throughput Rate Management. The conver-
3. No Pipeline Delay. The part features a standard successive
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
CONVST
AD7470 offers 1.75 MSPS throughput and the AD7472
offers 1.5 MSPS throughput rates with 4 mW power
consumption.
sion rate is determined by an externally-applied clock allow-
ing the power to be reduced as the conversion rate is reduced.
The part also features an auto sleep mode to maximize power
efficiency at lower throughput rates.
approximation ADC with accurate control of the sampling
instant via a CONVST input and once off conversion control.
V
IN
10-Bit/12-Bit Parallel ADCs
AD7470 IS A 10-BIT PART WITH DB0 TO DB9 AS OUTPUTS.
AD7472 IS A 12-BIT PART WITH DB0 TO DB11 AS OUTPUTS.
AD7470/AD7472
AV
FUNCTIONAL BLOCK DIAGRAM
DD
T/H
DV
© 2003 Analog Devices, Inc. All rights reserved.
DD
APPROXIMATION
SUCCESSIVE
CONTROL
10-/12-BIT
LOGIC
REF IN
ADC
AD7470/AD7472
AGND
1.75 MSPS, 4 mW
DGND
DRIVERS
OUTPUT
V
DRIVE
www.analog.com
DB9 (DB11)
DB0
CLK IN
CS
BUSY
RD

Related parts for AD7470ARUZ

AD7470ARUZ Summary of contents

Page 1

FEATURES Specified for 1.75 MSPS for AD7470 (10-Bit) 1.5 MSPS for AD7472 (12-Bit) Low Power AD7470: 3.34 mW Typ at 1.5 MSPS with 3 V Supplies 7.97 mW Typ at 1.75 ...

Page 2

AD7470/AD7472 AD7470–SPECIFICATIONS Parameter DYNAMIC PERFORMANCE Signal to Noise + Distortion (SINAD) Signal-to-Noise Ratio (SNR) Total Harmonic Distortion (THD) Peak Harmonic or Spurious Noise (SFDR) Intermodulation Distortion (IMD) Second-Order Terms Third-Order Terms Aperture Delay Aperture Jitter Full Power Bandwidth DC ACCURACY ...

Page 3

AD7472–SPECIFICATIONS Parameter A Version DYNAMIC PERFORMANCE 5 V Signal to Noise + Distortion (SINAD Signal-to-Noise Ratio (SNR Total Harmonic Distortion (THD) –83 –83 –75 Peak Harmonic or Spurious Noise (SFDR) –86 –86 –76 Intermodulation Distortion (IMD) ...

Page 4

AD7470/AD7472 AD7472–SPECIFICATIONS Parameter DYNAMIC PERFORMANCE Signal to Noise + Distortion (SINAD) Signal-to-Noise Ratio (SNR) Total Harmonic Distortion (THD) Peak Harmonic or Spurious Noise (SFDR) Intermodulation Distortion (IMD) Second-Order Terms Third-Order Terms Aperture Delay Aperture Jitter Full Power Bandwidth DC ACCURACY ...

Page 5

TIMING SPECIFICATIONS Limit at T Parameter AD7470 CLK 30 t 436.42 CONVERT t 1 WAKEUP ...

Page 6

AD7470/AD7472 1 ABSOLUTE MAXIMUM RATINGS (T = 25°C unless otherwise noted AGND/DGND . . . . . . . . . . . . . . . . . –0 ...

Related keywords