hi1175 Intersil Corporation, hi1175 Datasheet

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hi1175

Manufacturer Part Number
hi1175
Description
8-bit, 20 Msps, Flash A/d Converter
Manufacturer
Intersil Corporation
Datasheet

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8-Bit, 20MSPS, Flash A/D Converter
The HI1175 is an 8-bit, analog-to-digital converter built in a
1.4µm CMOS process. The low power, low differential gain
and phase, high sampling rate, and single 5V supply make
the HI1175 ideal for video and imaging applications.
The adoption of a 2-step flash architecture achieves low
power consumption (60mW) at a maximum conversion
speed of 20MSPS (Min), 35MSPS typical with only a 2.5
clock cycle data latency. The HI1175 also features digital
output enable/disable and a built in voltage reference. The
HI1175 can be configured to use the internal reference or an
external reference if higher precision is required.
Ordering Information
HI1175JCB
HI1175-EV
PART NUMBER
RANGE (
-40 to 85
TEMP.
25
®
o
C)
1
24 Ld SOIC
Evaluation Board
Data Sheet
PACKAGE
M24.2-S
PKG.
NO.
1-888-INTERSIL or 1-888-468-3774
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Features
• Resolution . . . . . . . . . . . . . . . . . . . . 8-Bit ±0.3 LSB (DNL)
• Maximum Sampling Frequency . . . . . . . . . . . . . . 20MSPS
• Low Power Consumption . . . . . . 60mW (at 20MSPS Typ)
• Built-In Sample and Hold Circuit
• Built-In Reference Voltage Self Bias Circuit
• Three-State TTL Compatible Output
• Single +5V Power Supply
• Low Input Capacitance. . . . . . . . . . . . . . . . . . . 11pF (Typ)
• Reference Impedance . . . . . . . . . . . . . . . . . . . 300Ω (Typ)
• Evaluation Board Available (HI1175-EV)
• Low Cost
• Direct Replacement for the Sony CXD1175
Applications
• Video Digitizing
• PC Video Capture
• Image Scanners
• TV Set Top Boxes
• Multimedia
• Personal Communication Systems (PCS)
Pinout
(Reference Current Excluded)
October 25, 2005
All other trademarks mentioned are the property of their respective owners.
|
D7 (MSB)
D0 (LSB)
Intersil (and design) is a registered trademark of Intersil Americas Inc.
DV
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CLK
Copyright Intersil Americas Inc. 2000, 2005. All Rights Reserved
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HI1175 (SOIC)
TOP VIEW
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HI1175
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FN3577.8
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hi1175 Summary of contents

Page 1

... The HI1175 also features digital output enable/disable and a built in voltage reference. The HI1175 can be configured to use the internal reference or an external reference if higher precision is required. Ordering Information TEMP. ...

Page 2

... REFERENCE VOLTAGE RBS 22 0.6V (Typ RTS 16 2.6V (Typ HC04 CLOCK IN + HI1175 CLK D7 (MSB (LSB) ...

Page 3

... CLK 16 V RTS 14 RBS 3 HI1175 EQUIVALENT CIRCUIT DESCRIPTION When OE = Low, Data is valid. ...

Page 4

... Differential Phase Error, DP Aperture Jitter Sampling Delay Data Latency, t LAT ANALOG INPUTS Analog Input Bandwidth (-1dB), BW Analog Input Capacitance HI1175 Thermal Information Thermal Resistance (Typical, Note SOIC Package Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . 150 to V Maximum Storage Temperature Range, T ...

Page 5

... POWER SUPPLY CHARACTERISTIC Supply Current NOTE: 2. Electrical specifications guaranteed only under the stated operating conditions. Timing Diagrams t PW1 CLOCK ANALOG INPUT DATA OUTPUT : POINT FOR ANALOG SIGNAL SAMPLING 5 HI1175 = +5V 0.5V 2.5V TEST CONDITIONS Short V and V , Short V and V RB RBS ...

Page 6

... LOWER REFERENCE VOLTAGE LOWER COMPARATOR BLOCK A LOWER DATA A LOWER COMPARATOR BLOCK B LOWER DATA B DIGITAL OUTPUT Typical Performance Curves 4.5 4.0 POWER SUPPLY VOLTAGE (V) FIGURE 3. SUPPLY CURRENT vs SUPPLY VOLTAGE 6 HI1175 V ( (1) C (1) S (2) C (2) MD (0) MD (1) RV (0) RV (1) S (1) ...

Page 7

... ENCODE 21MHz 48 47 ENCODE 31MHz 46 45 ENCODE 26MHz INPUT FREQUENCY (MHz) FIGURE 6. HI1175JCP SNR vs INPUT FREQUENCY -30 -33 -35 ENCODE 26MHz -38 -40 ENCODE 31MHz -43 -45 ENCODE 21MHz -48 -50 -53 - INPUT FREQUENCY (MHz) FIGURE 8 ...

Page 8

... TEMPERATURE ( FIGURE 13. DNL vs TEMPERATURE - 1MHz IN -49 -50 -51 -52 -53 -54 -55 -35 - TEMPERATURE ( FIGURE 15. THD vs TEMPERATURE 8 HI1175 (Continued) = -3.7mA I = 1.1mA 105 125 105 125 105 125 35MHz 20MHz C 12 ...

Page 9

... STEP V 255 RT • • • • • • • 128 • • 127 • • • • • HI1175 (Continued) 2.15 2. FIGURE 20. OUTPUT DATA DELAY vs TEMPERATURE A/D OUTPUT CODE TABLE DIGITAL OUTPUT CODE MSB ...

Page 10

... Detailed Description The HI1175 is a 2-step A/D converter featuring a 4-bit upper comparator group and two lower comparator groups of 4 bits each. The reference voltage can be obtained from the onboard bias generator or be supplied externally. This IC uses an offset canceling type comparator that operates synchronously with an external clock ...

Page 11

... HI1175 CLK OE GND ICL8069 REFERENCE AMP HA5020 (Single) HI1175 (8-Bit) HA5022(Dual) HA5024 (Quad) HA5013 (Triple) HSP9501: Programmable Data Buffer HSP48901 Image Filter, 30MHz, 8-Bit HSP43881: Digital Filter, 30MHz, 1-D and 2-D FIR Filters HSP43168: Dual FIR Filter, 10-Bit, 33MHz/45MHz CMOS Logic Available in HC, HCT, AC, ACT and FCT. ...

Page 12

... Dynamic Performance Definitions Fast Fourier Transform (FFT) techniques are used to evaluate the dynamic performance of the HI1175. A low distortion sine wave is applied to the input sampled, and the output is stored in RAM. The data is then transformed into the frequency domain with a 1024 point FFT and analyzed to evaluate the dynamic performance of the A/D ...

Page 13

... 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. For information regarding Intersil Corporation and its products, see web site www.intersil.com 13 HI1175 ...

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