AD7470ARUZ - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

AD7470ARUZ
Manufacturer

ADI
ChipWorker Part#

CW551612
Category

Analog to Digital, ADC IC
Package

TSSOP-24
Description

ANALOG DEVICES AD7470ARUZ Analog to Digital Converter, 10Bit, 1.75MSPS, Single, 2.7V, 5.25V, TSSOP
Documentation

Datasheet

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AD7470ARUZ Specifications

Attribute	Attribute Value

Part Number	AD7470ARUZ
Manufacturer	ADI
ChipWorker Part#	CW551612
Category	Analog to Digital, ADC IC
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	24 Pin
Case/Package	TSSOP-24
Digital Logic Level	SAR
Supply Voltage (DC)	2.70V (min)
Supply Current	2.4 mA
Number of Channels	1 Channel
Number of Positions	24 Position
Number of Bits	10 Bit
Power Dissipation	12 mW
Sample Rate	1.75 Msps
Resolution (Bits)	10.0 Bit
Input Capacitance	33.0 pF
Input Impedance	1.00 MΩ
Number of ADCs	1 ADC
Number of Inputs	1 Input
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Power Dissipation (Max)	12 mW
Number of Input Channels	1 Channel
Supply Voltage	2.7V ~ 5.25V
Supply Voltage (Max)	5.25 V
Supply Voltage (Min)	2.7 V
Input Voltage	2.5 V
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Size-Length	7.9 mm
Size-Width	4.5 mm
Size-Height	1.05 mm
Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Active
Packaging	Each
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
Mil-Spec	No
REACH SVHC Compliance Edition	2015/12/17
ECCN Code	EAR99

Product Description

Product Details
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/hold amplifier which can handle input frequencies in excess of 20 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 conversion 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.
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 conversion rate is determined by the externally-applied clock.
**Product Highlights**
1. High Throughput with Low Power Consumption. The AD7470 offers 1.75 MSPS throughput and the AD7472 offers 1.5 MSPS throughput rates with 4 mW power consumption.
2. Flexible Power/Throughput Rate Management. The conversion rate is determined by an externally-applied clock allowing 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.
3. No Pipeline Delay. The part features a standard successive approximation ADC with accurate control of the sampling instant via a CONVST input and once off conversion control.
### Features and Benefits
Specified for VDD of 2.7 V to 5.25 V
1.75 MSPS (10-Bit)
Low Power
3.34 mW Typ at 1.5 MSPS with 3 V Supplies
7.97 mW Typ at 1.75 MSPS with 5 V Supplies
Flexible Power/Throughput Rate Management
|
Wide Input Bandwidth
70 dB Typ SNR at 500 kHz Input Frequency
No Pipeline Delays
High Speed Parallel Interface
Sleep Mode: 50 nA Typ
24-Lead SOIC and TSSOP Packages
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