AD7768-4

RECOMMENDED FOR NEW DESIGNS

4-Channel, 24-Bit, Simultaneous Sampling ADC, Power Scaling, 110.8 kHz BW

Data Sheet (Rev. C) Product Selection Table

Part Models: 3
1ku List Price: Starting From $13.23

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Part Details

Precision ac and dc performance
8-/4-channel simultaneous sampling
- 256 kSPS maximum ADC ODR per channel
- 108 dB dynamic range
- 110.8 kHz maximum input bandwidth (−3 dB BW)
- −120 dB THD, typical
- ±2 ppm of full-scale range (FSR) integral nonlinearity (INL), ±50 μV offset error, ±30 ppm of FSR gain error
Optimized power dissipation vs. noise vs. input bandwidth
- Selectable power, speed, and input bandwidth
  - Fast (highest speed): 110.8 kHz BW, 51.5 mW per channel
  - Median (half speed): 55.4 kHz BW, 27.5 mW per channel
  - Low power (lowest power): 13.8 kHz BW, 9.375 mW per channel

Per channel digital filter
Programmable input bandwidth/sampling rates
CRC error checking on data interface
Daisy-chaining
Linear phase digital filter
- Low latency sinc5 filter
- Wideband brick wall filter: ±0.005 dB ripple to 102.4 kHz
Analog input precharge buffers
Power supply
- AVDD1 = 5.0 V, AVDD2 = 2.25 V to 5.0 V
- IOVDD = 2.5 V to 3.3 V or IOVDD = 1.8 V
64-lead LQFP package, no exposed pad
Temperature range: −40°C to +105°C

Part Models: 3
1ku List Price: Starting From $13.23

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
AD7768-4BSTZ	64-Lead LQFP (10mm x 10mm)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
AD7768-4BSTZ-RL	64-Lead LQFP (10mm x 10mm)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
AD7768-4BSTZ-RL7	64-Lead LQFP (10mm x 10mm)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN
No Match Found
Oct 18, 2016 - 16_0034 Assembly Relocation of Select LQFP,LQFP_EP,MQFP,TQFP,TQFP_EP Products to Stats ChipPAC China Jiangyin
		PCN16_0034_Form Material_Report Qualification Results Summary Qualification Results Summary Qualification Results Summary
AD7768-4BSTZ	PRODUCTION
AD7768-4BSTZ-RL	PRODUCTION
AD7768-4BSTZ-RL7	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

Device Drivers 3

Can't find the software or driver you need?

Hardware Ecosystem

Parts	Product Life Cycle	Description
Current Sources 1
LT3092	PRODUCTION	200mA 2-Terminal Programmable Current Source
Fully Differential Amplifiers 2
ADA4945-1	RECOMMENDED FOR NEW DESIGNS	High Speed, ±0.1 µV/˚C Offset Drift, Fully Differential ADC Driver
LTC6363	LAST TIME BUY	Precision, Low Power Differential Amplifier/ADC Driver Family
High Speed Op Amps (Bandwidth ≥ 50MHz) 1
ADA4807-2	RECOMMENDED FOR NEW DESIGNS	3.1 nV/√Hz, 1 mA, 180 MHz, Rail-to-Rail Input/Output Amplifier

Low Noise Op Amps (≤ 10nV/√Hz) 1
ADA4896-2	RECOMMENDED FOR NEW DESIGNS	1 nV/√Hz, Low Power, Rail-to-Rail Output Amplifiers
Positive Linear Regulators (LDO) 3
ADP7118	RECOMMENDED FOR NEW DESIGNS	20 V, 200 mA, Low Noise, CMOS LDO Linear Regulator
ADP7112	RECOMMENDED FOR NEW DESIGNS	20 V, 200 mA, Low Noise, CMOS LDO Linear Regulator
ADP7104	RECOMMENDED FOR NEW DESIGNS	20 V, 500 mA, Low Noise, CMOS LDO
Precision Op Amps (Vos ≤1mV & TCVos ≤2uV/C) 1
ADA4805-2	RECOMMENDED FOR NEW DESIGNS	Dual, 0.2 µV/°C Offset Drift, 105 MHz Low Power, Low Noise, Rail-to-Rail Amplifier
Series Voltage References 7
ADR441	PRODUCTION	Ultralow Noise, LDO XFET^® 2.5V Voltage Reference w/Current Sink and Source
ADR445	PRODUCTION	Ultralow Noise, LDO XFET^® 5.0V Voltage Reference w/Current Sink and Source
ADR444	PRODUCTION	Ultralow Noise, LDO XFET® 4.096V Voltage Reference w/Current Sink and Source
ADR4525	PRODUCTION	Ultra-Low-Noise, High-Accuracy 2.5V Voltage Reference
ADR4533	PRODUCTION	Ultra-Low-Noise, High-Accuracy 3.3V Voltage Reference
ADR4540	PRODUCTION	Ultra-Low-Noise, High-Accuracy 4.096V Voltage Reference
ADR4550	PRODUCTION	Ultra-Low-Noise, High-Accuracy 5.0V Voltage Reference
Simultaneous Sampling A/D Converters 2
AD7768-4	RECOMMENDED FOR NEW DESIGNS	4-Channel, 24-Bit, Simultaneous Sampling ADC, Power Scaling, 110.8 kHz BW
AD7761	NOT RECOMMENDED FOR NEW DESIGNS	8-Channel, 16-Bit, Simultaneous Sampling ADC with Power Scaling, 110.8 kHz BW
Single Channel A/D Converters 1
AD7768-1	RECOMMENDED FOR NEW DESIGNS	DC to 204 kHz, Dynamic Signal Analysis, Precision 24-Bit ADC with Power Scaling
Single-Ended to Differential Amplifiers 1
ADA4940-1	PRODUCTION	Ultralow Power, Low Distortion ADC Driver

Tools & Simulations

Precision ADC Driver Tool

The Precision ADC Driver Tool is a web application that simulates the performance of precision ADC and driver combinations. Potential issues with driver selection, kickback settling, and distortion are flagged, and design tradeoffs can be quickly evaluated. Simulations and calculations include system noise, distortion, and settling of the ADC input

Open Tool

IBIS Model 1

AD7768-4 IBIS Model

Evaluation Kits

Amplifier Mezzanine Card for ADA4807-2

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Features and Benefits

Enables quick breadboarding and prototyping
User defined circuit configuration
Easy connection to other ADC evaluation boards

Product Details

The Analog Devices, Inc., amplifier mezzanine card (AMC) analog-to-digital converter (ADC) driver evaluates the performance of amplifiers in 8-lead, single and dual SOIC, 6-lead single SOT23, 8-lead dual MSOP, and 16-lead LFCSP packages. This add on board can be inserted on ADC evaluation boards using its 7-pin header. Figure 1 shows the AMC mounted on an Analog Devices, Inc., ADC evaluation board.

The AMC can support any of Analog Devices operational amplifiers and ADC drivers in different packages. The user can configure the ADC driver as a Sallen-Key low-pass, high-pass, or band-pass filter, as a multiple feedback low-pass, high-pass, or band-pass filter, or as an inverting and noninverting operational amplifier. The user can also configure the AMC to drive a single-ended, fully differential, or a single-ended signal to a differential ADC.

Optimized power and ground planes ensure low noise and high speed operation. Component placement and power supply bypassing are optimized for maximum circuit flexibility and performance. The AMC evaluation board accepts 0402 or 0603 surface mount technology (SMT) components, 1206 bypass capacitors, and 2.54 mm headers.

All components are placed on the primary side. No components are placed on the secondary side.

Resources

UG-1224: Amplifier Mezzanine Card for ADC Drivers (Rev.0)
821.25 K

AD7768-4 Evaluation Board

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Features and Benefits

Full featured evaluation board for the AD7768-4
PC control in conjunction with the SDP-H1 system demonstration platform (EVAL-SDP-CH1Z)
PC software control and data analysis

Time and frequency domain
Standalone hardware capability

Product Details

The EVAL-AD7768-4FMCZ evaluation kit features the AD7768-4 24-bit, 256 kSPS, analog-to-digital converter (ADC). A 7 V to 9 V external bench top supply is regulated to 5 V and 3.3 V to supply the AD7768-4 and support components. The EVAL-AD7768-4FMCZ board connects to the USB port of the PC via a connection to the EVAL-SDP-CH1Z motherboard.

The AD7768-4 evaluation software fully configures the AD7768-4 device register functionality and provides dc and ac time domain analysis in the form of waveform graphs, histograms, and associated noise analysis for ADC performance evaluation.

The EVAL-AD7768-4FMCZ is an evaluation board that allows the user to evaluate the features of the ADC. The user PC software executable controls the AD7768-4 over a USB cable through the EVAL-SDP-CH1Z system demonstration platform (SDP).

Full specifications on the AD7768-4 are available in the product data sheet, which should be consulted in conjunction with this user guide when working with the evaluation board.