Part Number: AD7440

Function: Differential Input, 1 MSPS 10-Bit ADC

Package: 8-lead SOT-23 and MSOP Type

Manufacturer: Analog Devices

Pinouts:

Description

The AD7440 / AD7450A are 10-bit and 12-bit high speed, low power, successive approximation (SAR) analog-to-digital converters with a fully differential analog input. These parts operate from a single 3 V or 5 V power supply and use advanced design techniques to achieve very low power dissipation at throughput rates up to 1 MSPS.

The SAR architecture of these parts ensures that there are no pipeline delays. The parts contain a low noise, wide bandwidth, differential track-and-hold amplifier (T/H) that can handle input frequencies up to 3.5 MHz. The reference voltage is applied externally to the VREFpin and can be varied from 100 mV to 3.5 V depending on the power supply and what suits the application. The value of the reference voltage determines the common-mode voltage range of the part. With this truly differential input structure and variable reference input, the user can select a variety of input ranges and bias points.

Features

1. Fast throughput rate : 1 MSPS
2. Specified for VDDof 3 V and 5 V
3. Low power at max throughput rate
– 4 mW max at 1 MSPS with 3 V supplies
–  9.25 mW max at 1 MSPS with 5 V supplies
4. Fully differential analog input
5. Wide input bandwidth :  70 dB SINAD at 100 kHz input frequency
6. Flexible power/serial clock speed management
7. No pipeline delays
8. High speed serial interface
9. SPI / QSPI / MICROWIRE / DSP compatible
10. Power-down mode: 1 μA max
11. 8-lead SOT-23 and MSOP packages

Applications

1. Transducer interface
2. Battery-powered systems
3. Data acquisition systems
4. Portable instrumentation
5. Motor control

Other data sheets are available within the file:

AD7440BRM,  AD7440BRM-REEL7, AD7440BRMZ, AD7440BRT-R2

AD7440 Datasheet PDF Download