ADS7951 - TI

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

Part No

ADS7951
Manufacturer

TI
ChipWorker Part#

CW270094765
RoHS

Lead free / RoHS Compliant
Description

12Bit, 1MSPS,8CH, single ended, micro power, sr i/f, SAR ADCl
Documentation

Datasheet

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ADS7951 Specifications

Attribute	Attribute Value

Part Number	ADS7951
Manufacturer	TI
ChipWorker Part#	CW270094765
Documentation	Datasheet
Case/Package	TSSOP-30
	expand all
RoHS	RoHS Compliant
Lead-Free Status	Lead Free

Product Description

The ADS79xx is a 12/10/8-bit multichannel analog-to-digital converter family. The following table shows all twelve devices from this product family.
The devices include a capacitor based SAR A/D converter with inherent sample and hold.
The devices accept a wide analog supply range from 2.7 V to 5.25 V. Very low power consumption makes these devices suitable for battery-powered and isolated power supply applications.
A wide 1.7-V to 5.25-V I/O supply range facilitates a glue-less interface with the most commonly used CMOS digital hosts.
The serial interface is controlled by CS and SCLK for easy connection with microprocessors and DSP.
The input signal is sampled with the falling edge of CS. It uses SCLK for conversion, serial data output, and reading serial data in. The devices allow auto sequencing of preselected channels or manual selection of a channel for the next conversion cycle.
There are two software selectable input ranges (0 V to 2.5 V and 0 V to 5 V), four individually configurable GPIOs ( in case of TSSOP package devices), and two programmable alarm thresholds per channel. These features make the devices suitable for most data acquisition applications.
The devices offer an attractive power-down feature. This is extremely useful for power saving when the device is operated at lower conversion speeds.
The 16/12-channel devices from this family are available in a 38-pin TSSOP and 32 pin VQFN package and the 4/8-channel devices are available in a 30-pin TSSOP and 24 pin VQFN packages.
1-MHz Sample Rate Serial Devices
Product Family of 12/10/8-Bit Resolution
Zero Latency
20-MHz Serial Interface
Analog Supply Range: 2.7 to 5.25 V
I/O Supply Range: 1.7 to 5.25 V
Two SW Selectable Unipolar, Input Ranges: 0 to
2.5 V and 0 to 5 V
Auto and Manual Modes for Channel Selection
12, 8, 4-Channel Devices can Share 16 Channel
Device Footprint
Two Programmable Alarm Levels per Channel
Four Individually Configurable GPIOs for TSSOP
package devices. One GPIO for QFN devices
Typical Power Dissipation: 14.5 mW (+VA = 5 V,
+VBD = 3V) at 1 MSPS
Power-Down Current (1 µA)
Input Bandwidth (47 MHz at 3 dB)
38-,30-Pin TSSOP and 32-,24-Pin QFN Packages
APPLICATIONS
PLC / IPC
Battery Powered Systems
Medical Instrumentation
Digital Power Supplies
Touch Screen Controllers
High-Speed Data Acquisition Systems
High-Speed Closed-Loop Systems
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