ADA4350ARUZ - ADI

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

Part No

ADA4350ARUZ
Manufacturer

ADI
ChipWorker Part#

CW1184940
Category

Specialty Application IC
Package

TSSOP-28
Description

AFE General Purpose 1ADC 5V 28Pin TSSOP Tube
Documentation

Datasheet

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ADA4350ARUZ Specifications

Attribute	Attribute Value

Part Number	ADA4350ARUZ
Manufacturer	ADI
ChipWorker Part#	CW1184940
Category	Specialty Application IC
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	28 Pin
Case/Package	TSSOP-28
Supply Voltage (DC)	3.30V (min)
Supply Current	8.5 mA
Number of Positions	28 Position
Number of ADCs	1 ADC
Input Voltage (Max)	12 V
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage (Max)	12 V
Supply Voltage (Min)	3.3 V
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Size-Length	9.8 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	Contains Lead
REACH SVHC Compliance Edition	2015/12/17
ECCN Code	EAR99

Product Description

Product Details
The ADA4350 is an analog front end for photodetectors or other sensors whose output produces a current proportional to the sensed parameter or voltage input applications where the system requires the user to select between very precise gain levels to maximize the dynamic range.
The ADA4350 integrates a FET input amplifier, a switching network, and an ADC driver with all functions controllable via a serial peripheral interface (SPI) or parallel control logic into a single IC. The FET input amplifier has very low voltage noise and current noise making it an excellent choice to work with a wide range of photodetectors, sensors, or precision data acquisition systems.
Its switching network allows the user individual selection of up to six different, externally configurable feedback networks; by using external components for the feedback network, the user can more easily match the system to their desired photodetector or sensor capacitance. This feature also allows the use of low thermal drift resistors, if required.
The design of the switches minimizes error sources so that they add virtually no error in the signal path. The output driver can be used in either single-ended or a differential mode and is ideal for driving the input of an ADC.
The ADA4350 can operate from a single +3.3 V supply or a dual ±5 V supply, offering user flexibility when choosing the polarity of the detector. It is available in a Pb-free, 28-lead TSSOP package and is specified to operate over the −40°C to +85°C temperature range. Multifunction pin names may be referenced by their relevant function only.
Applications
Current to voltage (I to V) conversions
Photodiode preamplifiers
Chemical analyzers
Mass spectrometry
Molecular spectroscopy
Laser/LED receivers
Data acquisition systems
### Features and Benefits
Low noise, low input bias current FET input amplifier
Very low input bias current: ±0.25 pA typical at 25°C
Low input voltage noise
92 nV/√Hz typical at 10 Hz at 5 V
5 nV/√Hz typical at 100 kHz at ±5 V
Gain bandwidth product: 175 MHz
Input capacitance
3 pF typical, differential mode
2 pF typical, common mode
Integrated gain switching
Sampling and feedback switch off leakage: ±0.5 pA typical
Worst case tON/tOFF times: 105 ns typical/65 ns typical
Integrated analog-to-digital converter (ADC) driver
Differential mode and single-ended mode
Adjustable output common-mode voltage
−5 V to +3.8 V typical for ±5 V supply
Wide output voltage swing: ±4.8V minimum for ±5 V supply
Linear output current: 18 mA rms typical for ±5V supply
See data sheet for additional features

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