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HI1175 PDF даташит

Спецификация HI1175 изготовлена ​​​​«Intersil Corporation» и имеет функцию, называемую «Flash A/D Converter».

Детали детали

Номер произв HI1175
Описание Flash A/D Converter
Производители Intersil Corporation
логотип Intersil Corporation логотип 

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HI1175 Даташит, Описание, Даташиты
HI1175
August 1997
8-Bit, 20 MSPS, Flash A/D Converter
Features
Description
• Resolution . . . . . . . . . . . . . . . . . . 8-Bit ±0.3 LSB (DNL)
• Maximum Sampling Frequency . . . . . . . . . . . 20 MSPS
• Low Power Consumption . . . .60mW (at 20 MSPS Typ)
(Reference Current Excluded)
• 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 . . . . . . . . . . . . . . . . . . 300(Typ)
• Evaluation Board Available (HI1175-EV)
• Low Cost
• Direct Replacement for the Sony CXD1175
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 20 MSPS (Min), 35 MSPS 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
TEMP.
PART NUMBER RANGE (oC)
PACKAGE
HI1175JCP
-40 to 85 24 Ld PDIP
PKG.
NO.
E24.4-S
Applications
• Video Digitizing
www.DataSheet4U.com
• Image Scanners
• Multimedia
• PC Video Capture
• TV Set Top Boxes
• Personal Communication
Systems (PCS)
HI1175JCB
HI1175-EV
-40 to 85
25
24 Ld SOIC
M24.2-S
Evaluation Board
Pinout
HI1175 (PDIP, SOIC)
TOP VIEW
OE 1
DVSS
D0 (LSB)
D1
2
3
4
D2 5
D3 6
D4 7
D5 8
D6 9
D7 (MSB) 10
DVDD 11
CLK 12
24 DVSS
23 VRB
22 VRBS
21 AVSS
20 AVSS
19 VIN
18 AVDD
17 VRT
16 VRTS
15 AVDD
14 AVDD
13 DVDD
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999
4-1069
File Number 3577.6









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HI1175 Даташит, Описание, Даташиты
Functional Block Diagram
HI1175
OE 1
DVSS 2
D0 (LSB) 3
D1 4
D2 5
D3 6
D4 7
D5 8
D6 9
D7 (MSB) 10
DVDD 11
CLK 12
LOWER
DATA
LATCHES
UPPER
DATA
LATCHES
LOWER
ENCODER
(4-BIT)
LOWER
ENCODER
(4-BIT)
UPPER
ENCODER
(4-BIT)
CLOCK GENERATOR
REFERENCE VOLTAGE
LOWER
COMPARATORS
WITH S/H (4-BIT)
LOWER
COMPARATORS
WITH S/H (4-BIT)
UPPER
COMPARATORS
WITH S/H (4-BIT)
24 DVSS
23 VRB
22 VRBS
0.6V (Typ)
21 AVSS
20 AVSS
19 VIN
18 AVDD
17 VRT
16 VRTS
2.6V (Typ)
15 AVDD
14 AVDD
13 DVDD
Typical Application Schematic
HC04
+5V
R11
ICL8069
R12
CA158A
R4
+
- R13
R3
R5
+
-
CA158A
VIN
R1
HA2544
+
-
R2
C12
0.1µF
C9 +
4.7µF
C10
0.1µF
C8
CLOCK IN
+5V
13
14
15
16
17
18
HI1175
19
20
21
12
11
10
9
8
7
6
5
4
CLK
D7 (MSB)
D6
D5
D4
D3
D2
D1
C11
0.1µF
C7 +
4.7µF
22
23
24
3 D0 (LSB)
2
1
: Ceramic Chip Capacitor 0.1µF
: Analog GND
+5V
: Digital GND
NOTE: It is necessary that AVDD and DVDD pins be driven from the same supply. The gain of analog input signal can be changed by adjusting
the ratio of R2 to R1.
4-1070









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HI1175 Даташит, Описание, Даташиты
HI1175
Pin Descriptions and Equivalent Circuits
PIN
NUMBER
1
SYMBOL
OE
EQUIVALENT CIRCUIT
DVDD
1
2, 24
3-10
DVSS
D0 to D7
DVSS
D1
DESCRIPTION
When OE = Low, Data is valid.
When OE = High, D0 to D7 pins high impedance.
Digital GND.
D0 (LSB) to D7 (MSB) Output.
11, 13
12
DVDD
CLK
16 VRTS
17 VRT
23 VRB
14, 15, 18
19
AVDD
VIN
20, 21
22
AVSS
VRBS
12
16
DVDD
DVSS
AVDD
AVDD
17 23
AVSS
AVDD
19
AVSS
AVSS
22
Digital +5V.
Clock Input.
Shorted with VRT generates, +2.6V.
Reference Voltage (Top).
Reference Voltage (Bottom).
Analog +5V.
Analog Input.
Analog GND.
Shorted with VRB generates +0.6V.
4-1071










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