SPT1175ACN ETC-unknow, SPT1175ACN Datasheet

no-image

SPT1175ACN

Manufacturer Part Number
SPT1175ACN
Description
Manufacturer
ETC-unknow
Datasheet
FEATURES
• 20 MSPS Maximum Conversion Rate
• Internal Sample-and-Hold Function
• 90 mW Power Dissipation
• Internal Voltage Reference
• Single +5.0 V Power Supply
• Three-State TTL-Outputs
• CMOS Compatible Clock
GENERAL DESCRIPTION
The SPT1175 is a CMOS two-step A/D converter capable of
digitizing full scale analog input signals into 8-bit digital words
at a sample rate of 20 MSPS.
For most applications, no external sample-and-hold or
video driving amplifiers are required due to the device's
narrow aperture time, wide bandwidth, and low input ca-
pacitance.
BLOCK DIAGRAM
V IN
V
V
RT
RB
Signal Processing Technologies, Inc.
Sampling
Sampling
Amplifier
Amplifier
Fine
Fine
V
V
Sampling
Amplifier
RBS
RTS
Coarse
Reference Matrix
4755 Forge Road, Colorado Springs, Colorado 80907, USA
AGND AV
Analog
Phone: (719) 528-2300
Mux
D
Latch
Latch
Encoder
Encoder
8-BIT, 20 MSPS CMOS A/D CONVERTER
APPLICATIONS
• Video Digitizing
• Image Scanners
• Personal Computer Video
• Medical Ultrasound
• Multimedia
• Digital Television
The SPT1175 operates from a single +5.0 V power supply
and has an internal voltage reference which eliminates the
need for external reference circuitry. All digital inputs are
CMOS compatible and the tri-state outputs are TTL-compat-
ible. The SPT1175 is ideal for most video and image pro-
cessing applications that require low power dissipation and
low cost. The SPT1175 is available in 24-lead plastic SOIC,
plastic DIP, and PLCC packages over the commercial tem-
perature range (0 to +70 C). It is also available in die form.
FAX: (719) 528-2370
Correction
Circuit
Error
DV
Generator
DD
Timing
DV
DD
SPT1175
Latches
3-State
Output
AGND
Buffer
Data
and
DGND
DØ (LSB)
OE
D1
D2
D3
D4
D5
D6
D7 (MSB)
CLK

Related parts for SPT1175ACN

SPT1175ACN Summary of contents

Page 1

FEATURES • 20 MSPS Maximum Conversion Rate • Internal Sample-and-Hold Function • Power Dissipation • Internal Voltage Reference • Single +5.0 V Power Supply • Three-State TTL-Outputs • CMOS Compatible Clock GENERAL DESCRIPTION The SPT1175 is a CMOS ...

Page 2

ABSOLUTE MAXIMUM RATINGS (Beyond which damage may occur) Supply Voltages V ........................................................... -0 Input Voltages Analog Input .............................................. AGND to V Reference Input Voltage ........................... AGND to V ESD Susceptibility (2) ................................................. Notes: 1. Operation at ...

Page 3

ELECTRICAL SPECIFICATIONS T =+ =DV =+5.0 V, AGND=DGND=0 PARAMETERS Dynamic Performance Signal-To-Noise Ratio f =1.0 MHz IN f =3.58 MHz IN f =10 MHz IN Spurious Free Dynamic Range f =1.0 MHz IN ...

Page 4

Table I - Output Coding INDEX .... 123 124 125 .... 254 255 Figure 1A: Timing Diagram V IN Clock Data Figure 1B: Tri-State Output Timing Diagram 2.5 V 220 DUT 50 pF SPT ANALOG INPUT (V) ...

Page 5

TYPICAL INTERFACE CIRCUIT The SPT1175 is an 8-bit analog-to-digital converter which uses a two-step, ping-pong architecture to perform conver- sions MSPS. Figure 2 shows the typical interface requirements when using the SPT1175 in normal operation. The following ...

Page 6

SPT PACKAGE OUTLINES 24-Lead Plastic DIP 24-Lead SOIC INCHES SYMBOL MIN MAX A 0.130 0.230 B 0.115 0.200 C ...

Page 7

Pin 1 TOP VIEW A B SPT PACKAGE OUTLINES 28-Lead PLCC INCHES SYMBOL MIN A 0.450 B 0.485 0.165 E F 0.022 typ G 0.18 typ H 0.05 typ I 0.039 ...

Page 8

... ORDERING INFORMATION PART NUMBER SPT1175ACN SPT1175ACP SPT1175ACS SPT1175ACU *See the die specification for guaranteed electrical performance. Signal Processing Technologies, Inc. reserves the right to change products and specifications without notice. Permission is hereby expressly granted to copy this literature for informational purposes only. Copying this material for any other use is strictly prohibited. ...

Related keywords