ISL267817IBZ-T Intersil, ISL267817IBZ-T Datasheet

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ISL267817IBZ-T

Manufacturer Part Number
ISL267817IBZ-T
Description
Analog to Digital Converters - ADC 12 BIT 200KSPS SAR 8LD 3 X 3 PROPRIETRY
Manufacturer
Intersil
Datasheet

Specifications of ISL267817IBZ-T

Rohs
yes
12-Bit Differential Input 200kSPS SAR ADC
ISL267817
The ISL267817 is a 12-bit, 200kSPS sampling SAR-type ADC
which features excellent linearity over supply and temperature
variations, and provides a drop-in compatible alternative to all
ADS7817 performance grades. The robust, fully-differential
input offers high impedance to minimize errors due to leakage
currents, and the specified measurement accuracy is
maintained with input signals up to the supply rails.
The reference accepts inputs between 0.1V to 2.5V, providing
design flexibility in a wide variety of applications. The
ISL267817 also features up to 8kV Human Body Model ESD
survivability.
The serial digital interface is SPI compatible and is easily
interfaced to popular FPGAs and microcontrollers. Operating
from a 5V supply, power dissipation is 2.15mW at a sampling
rate of 200kSPS, and just 25µW between conversions utilizing
the Auto Power-Down mode, making the ISL267817 an
excellent solution for remote industrial sensors and
battery-powered instruments. It is available in the compact,
industry-standard 8 Lead SOIC and MSOP packages and is
specified for operation over the industrial temperature range
(-40°C to +85°C).
April 19, 2012
FN7877.2
+IN
–IN
VREF
VREF
FIGURE 1. BLOCK DIAGRAM
+VCC
GND
1
LOGIC
SAR
INTERFACE
SERIAL
1-888-INTERSIL or 1-888-468-3774
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
DCLOCK
DOUT
CS/SHDN
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
Features
• Drop-In Compatible with ADS7817 (All Performance Grades)
• Differential Input
• Simple SPI-compatible Serial Digital Interface
• Guaranteed No Missing Codes
• 200kHz Sampling Rate
• +4.75V to +5.25V Supply
• Low 2.15mW Operating Power (200kSPS)
• Power-down Current between Conversions: 3µA
• Excellent Differential Non-Linearity (1.0LSB max)
• Low THD: -85dB (typ)
• Pb-Free (RoHS Compliant)
• Available in SOIC and MSOP Packages
Applications
• Remote Data Acquisition
• Battery Operated Systems
• Industrial Process Control
• Energy Measurement
• Data Acquisition Systems
• Pressure Sensors
• Flow Controllers
All other trademarks mentioned are the property of their respective owners.
FIGURE 2. DIFFERENTIAL LINEARITY ERROR vs CODE
-0.25
-0.50
-0.75
-1.00
1.00
0.75
0.50
0.25
0.00
0
|
Copyright Intersil Americas Inc. 2011, 2012. All Rights Reserved
512
1024 1536 2048 2560 3072 3584 4096

Related parts for ISL267817IBZ-T

ISL267817IBZ-T Summary of contents

Page 1

... CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. | 1-888-INTERSIL or 1-888-468-3774 Intersil (and design trademark owned by Intersil Corporation or one of its subsidiaries. All other trademarks mentioned are the property of their respective owners. 512 1024 1536 2048 2560 3072 3584 4096 ...

Page 2

... GND 4 5 Ordering Information PART NUMBER (Notes ISL267817IBZ 267817 IBZ ISL267817IUZ 67817 NOTES: 1. Add “-T*” suffix for tape and reel. Please refer to 2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations) ...

Page 3

Table of Contents Typical Connection Diagram ...

Page 4

... Thermal Resistance (Typical SOIC Package (Notes 4, 5 MSOP Package (Notes 4, 5 Operating Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+150°C Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp = 3.2MHz 200kSPS 2.5V; V DCLOCK S REF TEST CONDITIONS +IN – ...

Page 5

Electrical Specifications +VCC = +5V, f Boldface limits apply over the operating temperature range, -40°C to +85°C. (Continued) SYMBOL PARAMETER REFERENCE INPUT VREF VREF Input Range VREFLEAK Current Drain DIGITAL INPUT/OUTPUT Logic Family V Input High Voltage IH V Input ...

Page 6

Timing Specifications Limits established by characterization and are not production tested. +VCC = 5V 2.5V Boldface limits apply over the operating temperature range, -40°C to +85°C. (Continued) REF CM REF SYMBOL PARAMETER t ...

Page 7

DCLOCK t EN DOUT VOL = 0.4V VIH = 2.4V CS/SHDN t DIS DOUT 10% FIGURE 5. TIMING PARAMETER DEFINITIONS 7 ISL267817 VIL = 0.8V DCLOCK t hDO DOUT VOH = VDD - 0.2V VIL = 0.8V DCLOCK t ...

Page 8

Typical Performance Characteristics unless otherwise specified. CLK SAMPLE 2.5 2.0 1.5 1.0 0.5 0.0 -0.5 -1.0 -1.5 -2.0 -2.5 1.00 1.20 1.40 1.60 1.80 REFERENCE VOLTAGE (V) FIGURE 6. CHANGE IN OFFSET vs REFERENCE ...

Page 9

Typical Performance Characteristics unless otherwise specified. (Continued) CLK SAMPLE 0 -20 -40 -60 -80 -100 -120 FREQUENCY (kHz) FIGURE 12. FREQUENCY SPECTRUM (8192 POINT FFT 9.9kHz, –0.5dB IN 95 ...

Page 10

Typical Performance Characteristics unless otherwise specified. (Continued) CLK SAMPLE 1.00 0.75 0.50 0.25 0.00 -0.25 -0.50 -0.75 -1.00 0 512 1024 1536 2048 2560 3072 3584 4096 FIGURE 18. DIFFERENTIAL LINEARITY ERROR vs CODE ...

Page 11

Typical Performance Characteristics unless otherwise specified. (Continued) CLK SAMPLE FIGURE 24. REFERENCE CURRENT vs TEMPERATURE (CODE = FF8h) Functional Description The ISL267817 is based on a successive approximation register (SAR) architecture utilizing capacitive charge ...

Page 12

Differential signaling offers several benefits over a single-ended input, such as: • Doubling of the full-scale input range (and therefore the dynamic range) • Improved even order harmonic distortion • Better noise immunity due to common mode rejection Figure 28 ...

Page 13

BULK + 0.1µF +5V VIN VOUT POWER-DOWN/STANDBY MODES The mode of operation of the ISL267817 is selected by controlling the logic state of the CS/SHDN signal during a conversion. There are two possible modes of operation: dynamic mode or ...

Page 14

ADC is roughly constant, decreasing somewhat at lower throughput rates (Figure 35). The shutdown current is impacted by the state of the CS/SHDN pin, as shown in Figure 36. 1000 T ...

Page 15

V is the RMS amplitude of the fundamental and and V are the RMS amplitudes of the second to the sixth harmonics. Peak Harmonic or Spurious Noise (SFDR) Peak harmonic ...

Page 16

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. ...

Page 17

Package Outline Drawing M8.15 8 LEAD NARROW BODY SMALL OUTLINE PLASTIC PACKAGE Rev 4, 1/12 INDEX AREA TOP VIEW 5.00 (0.197) 4.80 (0.189) 1.27 (0.050) 0.51(0.020) 0.33(0.013) SIDE VIEW “A 17 ISL267817 DETAIL "A" 6.20 (0.244) 5.80 ...

Page 18

Package Outline Drawing M8.118 8 LEAD MINI SMALL OUTLINE PLASTIC PACKAGE Rev 4, 7/11 3.0±0. PIN TOP VIEW H 0.25 - 0.36 0. A-B D SIDE VIEW 1 (5.80) (4.40) (3.00) ...

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