ADS8402

Features:

1.25-MHz Sample Rate
16-Bit NMC Ensured Over Temperature
Zero Latency
Unipolar Differential Input Range: Vref to Vref
Onboard Reference
Onboard Reference Buffer
High-Speed Parallel Interface
Power Dissipation: 155 mW at 1.25 MHz Typ
Wide Digital Supply
8-/16-Bit Bus Transfer
48-Pin TQFP Package


Application

DWDM
Instrumentation
High-Speed, High-Resolution, Zero Latency Data Acquisition Systems
Transducer Interface
Medical Instruments
Communication


Pinout




Specifications

		UNIT
Voltage	+IN to AGND	+VA + 0.1 V
	-IN to AGND	+VA + 0.1 V
Voltage range	+VA to AGND	0.3 V to 7 V
	+VBD to BDGND	0.3 V to 7 V
	+VA to +VBD	0.3 V to 2.5 V
Digital input voltage to BDGND		0.3 V to +VBD + 0.3 V
Digital output voltage to BDGND		0.3 V to +VBD + 0.3 V
Operating free-air temperature range, TA		40°C to 85°C
Storage temperature range, Tstg		65°C to 150°C
Junction temperature (TJ max)		150°C
TQFP package	Power dissipation	(TJMax TA)/JA
	JA thermal impedance	86°C/W
Leadtemperature soldering	Vapor phase (60 sec)	215°C
	Infrared (15 sec)	220°C

Description

The ADS8402 is a 16-bit, 1.25 MHz A/D converter with an  internal 4.096-V reference. The device includes a 16-bit capacitor-based SAR A/D converter with inherent sample and hold. The ADS8402 offers a full 16-bit interface and an
8-bit option where data is read using two 8-bit read cycles.

The ADS8402 has a unipolar differential input. It is available in a 48-lead TQFP package and is characterized over the industrial 40°C to 85°C temperature range.