ADS-928 查看數據表（PDF） - DATEL Data Acquisition products
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ADS-928 Datasheet PDF : 4 Pages
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ADS-928
500kHz, 14-Bit Sampling A/D Converters
ABSOLUTE MAXIMUM RATINGS
PARAMETERS
+15V Supply (Pin 12)
–15V Supply (Pin 13)
+5V Supply (Pin 10)
Digital Inputs (Pins 9, 32)
Analog Input (Pin 3)
Lead Temp. (10 seconds)
LIMITS
0 to +16
0 to –16
0 to +6
–0.3 to +7.0
-7.5 to +12.5
300 max.
UNITS
Volts
Volts
Volts
Volts
Volts
°C
FUNCTIONAL SPECIFICATIONS
(TA = +25°C, ±VCC = +15V, +VDD =+5V, 500kHz sampling rate, and a 5 minute
warmup unless otherwise specified.)
ANALOG INPUTS
Input Voltage Range
Input Impedence
Input Capacitance
MIN. TYP.
MAX.
— 0 to +10 —
—
±5
—
4.9
5
—
—
7
15
UNITS
Volts
Volts
kΩ
pF
DIGITAL INPUTS
Logic Levels
Logic "1"
Logic "0"
Logic Loading "1"
Logic Loading "0"
+2.0
—
—
Volts
—
—
+0.8
Volts
—
—
+20
μA
—
—
–20
μA
PERFORMANCE
Integral Non-Linearity @ fin = 10kHz
+25°C
—
±1/2
±2
LSB
0 to +70°C
—
±1
±2
LSB
–55 to +125°C
—
±1
±3
LSB
Differential Non-Linearity @ fin = 10kHz
+25°C
—
±1/2 ±0.85
LSB
0 to +70°C
—
±1/2 ±0.95
LSB
–55 to +125°C
—
±3/4
±2
LSB
Full Scale Absolute Accuracy
+25°C
0 to +70°C
–55 to +125°C
—
±0.08 ±0.3
—
±0.2 ±0.6
—
±0.4 ±0.8
%FSR
%FSR
%FSR
Unipolar Zero Error
+25°C
0 to +70°C
–55 to +125°C
—
±0.1 ±0.15
%FSR
—
±0.1 ±0.2
%FSR
—
±0.2 ±0.3
%FSR
Bipolar Zero Error
+25°C (Tech note 1)
0 to +70°C
–55 to +125°C
—
±0.1 ±0.15
%FSR
—
±0.1 ±0.25
%FSR
—
±0.25 ±0.5
%FSR
Bipolar Offset Error
+25°C (Tech note 1)
0 to +70°C
–55 to +125°C
—
±0.05 ±0.1
%FSR
—
±0.1 ±0.25
%FSR
—
±0.25 ±0.45
%FSR
Gain Error
+25°C (Tech note 1)
0 to +70°C
–55 to +125°C
—
±0.1 ±0.3
%FSR
—
±0.15 ±0.45
%FSR
—
±0.25 ±0.75
%FSR
No Missing Codes
14 Bits
13 Bits
0 to +70°C
–55 to +125°C
Resolution
14 Bits
Output Coding
Pin 8 High
Staight binary/Offset binary/ 2's Comp.
Pin 8 Low
Comp. binary/Comp. offset binary/C2C
OUTPUTS
MIN.
Logic Level
Logic "1"
Logic "0"
Logic Loading "1"
Logic Loading "0"
Internal Reference Voltage, +25°C
Drift
External Current
+2.4
—
—
—
+9.98
—
—
DYNAMIC PERFORMANCE
Total Harm. Distort. (–0.5dB)
dc to 100kHz
—
100kHz to 250kHz
—
SNR (wo/distortion, –0.5dB)
dc to 100kHz
78
100kHz to 250kHz
74
SNR (& distortion, –0.5dB)
dc to 100kHz
77
100kHz to 250kHz
72
Two-tone Intermodulation Distortion
(fin = 100kHz, 240kHz,
fs = 500khz, –0.5dB)
—
Input Bandwith (–3dB)
Small Signal (–20dB input)
6
Large Signal (0.5dB input)
1.75
Feedthrough (25 kHz)
—
Slew Rate
—
Aperture Delay Time
—
Aperture Uncertainty
—
Overvoltage Recovery Time; 20% —
S/H Acq. Time
(to 0.003%FS (10V step)
—
Overvoltage Recovery, ±12V
—
A/D Conversion Rate
500
POWER REQUIREMENTS
Power Supply Range
+15V Supply
–15V Supply
+5V Supply
Power Supply Current
+15V Supply
–15V Supply
+5V Supply ➀
Power Dissipation
Power Supply Rejection
+14.5
–14.5
+4.75
—
—
—
—
—
TYP.
MAX. UNITS
—
—
—
—
+10.0
±30
—
—
+0.4
–4
+4
+10.02
—
2
Volts
Volts
mA
mA
Volts
ppm/°C
mA
–90
–83
dB
–82
–77
dB
83
—
dB
77
—
dB
80
—
dB
76
—
dB
80
—
—
—
—
—
90
—
±90
—
±20
—
50
—
—
500
680
750
600 1000
—
—
dB
MHz
MHz
dB
V/μs
ns
ps rms
ns
ns
ns
kHz
+15.0
–15.0
+5.0
+15.5
–15.5
+5.0
+78 +110
–65
–95
+68
+95
2.5
3.4
— ±0.02
Volts
Volts
Volts
mA
mA
mA
Watts
%FSR%V
PHYSICAL/ENVIRONMENTAL
Operating Temp. Range, Case
ADS-928MC
ADS-928MM
Storage Temperature Range
Package Type
Weight
0
—
+70
°C
–55
—
+125
°C
–65
—
+150
°C
32-pin, hermetic sealed, ceramic TDIP
0.42 ounces (12 grams)
➀ All power supplies should be on before applying a start convert pulse. All supplies
and the clock (start convert pulse) must be present during warm up period.
Table 1. Input Connections
INPUT RANGE
0 to -10V
±5V
INPUT PIN
Pin 3
Pin 3
TIE TOGETHER
Pins 2 and 4
Pins 1 and 2
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA • Tel: (508) 339-3000 • www.datel.com • e-mail: help@datel.com
27 Jul 2015 MDA_ADS-928.B02 Page 2 of 4
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