ADS774KE Datasheet PDF - Burr-Brown Corporation
| Part Number | ADS774KE | |
| Description | Microprocessor-Compatible Sampling CMOS ANALOG-to-DIGITAL CONVERTER | |
| Manufacturers | Burr-Brown Corporation | |
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There is a preview and ADS774KE download ( pdf file ) link at the bottom of this page. Total 13 Pages | ||
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® ADS774
ADS774
ADS774
ADS774
Microprocessor-Compatible Sampling
CMOS ANALOG-to-DIGITAL CONVERTER
FEATURES
q REPLACES ADC574, ADC674 AND ADC774
FOR NEW DESIGNS
q COMPLETE SAMPLING A/D WITH
REFERENCE, CLOCK AND
MICROPROCESSOR INTERFACE
q FAST ACQUISITION AND CONVERSION:
8.5µs max OVER TEMPERATURE
q ELIMINATES EXTERNAL SAMPLE/HOLD
IN MOST APPLICATIONS
q GUARANTEED AC AND DC PERFOR-
MANCE
q SINGLE +5V SUPPLY OPERATION
q LOW POWER: 120mW max
q PACKAGE OPTIONS: 0.6" and 0.3" DIPs,
SOIC
DESCRIPTION
The ADS774 is a 12-bit successive approximation
analog-to-digital converter using an innovative
capacitor array (CDAC) implemented in low-power
CMOS technology. This is a drop-in replacement for
ADC574, ADC674, and ADC774 models in most
applications, with internal sampling, much lower power
consumption, and the ability to operate from a single
+5V supply.
The ADS774 is complete with internal clock, micro-
processor interface, three-state outputs, and internal
scaling resistors for input ranges of 0V to +10V, 0V to
+20V, ±5V, or ±10V. The maximum throughput time
is 8.5µs over the full operating temperature range,
including both acquisition and conversion.
Complete user control over the internal sampling func-
tion facilitates elimination of external sample/hold
amplifiers in most existing designs.
The ADS774 requires +5V, with –15V optional. No
+15V supply is required. Available packages include
0.3" or 0.6" wide 28-pin plastic DIP and 28-pin SOICs.
Control
Inputs
Bipolar Offset
20V Range
10V Range
2.5V Reference
Input
2.5V Reference
Output
CDAC
Control Logic
Clock
–
+
Comparator
Successive
Approximation
Register
2.5V
Reference
Status
Parallel
Data
Output
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111
Internet: http://www.burr-brown.com/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
© 1991 Burr-Brown Corporation
PDS-1109F
Printed in U.S.A. July, 1995
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TYPICAL PERFORMANCE CURVES
At TA = +25°C, VDD = VEE = +5V; Bipolar ±10V Input Range; sampling frequency of 110kHz; unless otherwise specified. All plots use 4096 point FFTs.
0
–20
–40
–60
–80
–100
–120
0
FREQUENCY SPECTRUM (±10V, 2kHz Input)
S/(N + D) = 72.6dB
THD = –93.5dB
SNR = 72.6dB
10 20 30 40
Input Frequency (kHz)
50 55
SIGNAL/(NOISE + DISTORTION) vs
INPUT FREQUENCY AND AMBIENT TEMPERATURE
75
–55°C
70
+25°C
+125°C
65
0.1
1 10
Input Frequency (kHz)
100
FREQUENCY SPECTRUM (±10V, 20kHz Input)
0
S/(N + D) = 70.6dB
–20 THD = –77.5dB
SNR = 71.5dB
–40
–60
–80
–100
–120
0
10 20 30 40
Input Frequency (kHz)
50 55
0
–20
–40
–60
–80
–100
–120
0
FREQUENCY SPECTRUM (±1V, 20kHz Input)
S/(N + D) = 53.1dB
THD = –74.2dB
SNR = 53.1dB
10 20 30 40
Input Frequency (kHz)
50 55
SPURIOUS FREE DYNAMIC RANGE, SNR AND THD
vs INPUT FREQUENCY
100 Spurious Free Dynamic Range
90
Total Harmonic Distortion (THD)
80
Signal-to-Noise Ratio (SNR)
70
60
0.1
1 10
Input Frequency (kHz)
100
POWER SUPPLY REJECTION
vs SUPPLY RIPPLE FREQUENCY
80
60
40
20
10
10
100 1k 10k 100k 1M
Supply Ripple Frequency (Hz)
10M
®
5 ADS774
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for ADS774KE electronic component. |
| Information | Total 13 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ ADS774KE.PDF Datasheet ] | |
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Featured Datasheets
| Part Number | Description | MFRS |
| ADS774KE | The function is Microprocessor-Compatible Sampling CMOS ANALOG-to-DIGITAL CONVERTER. Burr-Brown Corporation | |
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