AD7851
PRODUCTION14-Bit, 333 kSPS, Serial Sampling A/D Converter
- Part Models
- 6
- 1ku List Price
- Starting From $12.20
Overview
- 333 kSPS Throughput Rate/±2 LSB DNL—A Grade
- 285 kSPS Throughput Rate/±1 LSB DNL—K Grade
- A and K Grades Guaranteed to 125°C/238 kSPS Throughput Rate
- Pseudo-Differential Input with Two Input Ranges
- Read/Write Capability of Calibration Data
- System and Self-Calibration with Autocalibration on Power-Up
- Single 5 V Supply
- Low Power: 60 mW Typ
- Power-Down Mode: 5 µW Typ Power Consumption
- Flexible Serial Interface: 8051/SPI®/QSPI™/µP Compatible
- 24-Lead PDIP, SOIC, and SSOP Packages
The AD7851 is a high speed, 14-bit ADC which operate from a single 5V power supply. The ADC powers-up with a set of default conditions at which time it can be operated as a read-only ADC. The ADC contains self-calibration and system calibration options to ensure accurate operation over time and temperature and has a number of power down options for low power applications.
The AD7851 is capable of 272kHz throughput rate. The input track-and-hold acquires a signal in 0.33 µs and features a pseudo-differential sampling scheme. The AD7851 has the added advantage of two input voltage ranges ( 0 to VREF, and -VREF/2 to +VREF/2 centered about VREF/2). Input signal range is to VDD and the part is capable of converting full-power signals to 140 kHz.
CMOS construction ensures low power dissipation (60 mW typ) with power-down mode (5 µW typ). The part is available in 24- pin, 0.3 inch-wide dual-in-line package (DIP), 24 lead small outline (SOIC) and 24 lead small shrink outline (SSOP) packages.
PRODUCT HIGHLIGHTS
- Single 5 V supply.
- Operates with reference voltages from 4 V to VDD.
- Analog input ranges from 0 V to VDD.
- System and self-calibration including power-down mode.
- Versatile serial I/O port.
APPLICATIONS
- Digital Signal Processing
- Speech Recognition and Synthesis
- Spectrum Analysis
- DSP Servo Control
- Instrumentation and Control Systems
- High Speed Modems
- Automotive
Documentation
Data Sheet 1
Technical Articles 1
Evaluation Design File 1
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 |
|---|---|---|---|
| AD7851ARSZ | 24-Lead SSOP | ||
| AD7851ARSZ-REEL | 24-Lead SSOP | ||
| AD7851ARZ | 24-Lead SOIC (Wide) | ||
| AD7851ARZ-REEL | 24-Lead SOIC (Wide) | ||
| AD7851KRZ | 24-Lead SOIC (Wide) | ||
| AD7851KRZ-REEL | 24-Lead SOIC (Wide) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Oct 19, 2010 - 10_0002 Halogen Free Material Change for SSOP Products Assembled at Amkor |
||
| AD7851ARSZ | PRODUCTION | |
| AD7851ARSZ-REEL | PRODUCTION | |
|
Jul 21, 2014 - 13_0297 Qualification of ASE Chungli, as an Alternate Assembly Site for Select 16L, 20L, 24L and 28L SOICW Packages |
||
| AD7851ARZ | PRODUCTION | |
| AD7851ARZ-REEL | PRODUCTION | |
| AD7851KRZ | PRODUCTION | |
| AD7851KRZ-REEL | PRODUCTION | |
|
Aug 4, 2010 - 10_0117 Halogen Free Material Change for SOIC_W Products at Carsem |
||
| AD7851ARZ | PRODUCTION | |
| AD7851ARZ-REEL | PRODUCTION | |
| AD7851KRZ | PRODUCTION | |
| AD7851KRZ-REEL | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.