®
®
ADS-942A
2
ABSOLUTE MAXIMUM RATINGS
PARAMETERS
LIMITS
UNITS
+15V Supply (Pin 12)
0 to +16
Volts
–15V Supply (Pin 13)
0 to –16
Volts
+5V Supply (Pin 10)
0 to +6
Volts
–5V Supply (Pin 14)
0 to –6
Volts
Digital Inputs (Pin 8,9, 32)
–0.3 to +VDD +0.3
Volts
Analog Input (Pin 3)
±15
Volts
Lead Temp. (10 seconds)
+300
°C
OUTPUTS
MIN.
TYP.
MAX.
UNITS
Output Coding
Staight Bin./Offset Bin./2's Comp.
Comp. Bin./Comp. Offset Bin./C2C
Logic Level
Logic "1"
+2.4
—
—
Volts
Logic "0"
—
—
+0.4
Volts
Logic Loading "1"
—
—
–160
µA
Logic Loading "0"
—
—
+6.4
mA
Internal Reference
Voltage, +25°C
+9.98
+10.0
+10.02
Volts
Drift
—
±13
±30
ppm/°C
External Current
—
—
5
mA
DYNAMIC PERFORMANCE
Total Harm. Distort. (0.5dB)
dc to 100kHz
—
–85
–76
dB
100kHz to 500kHz
—
–80
–75
dB
500kHz to 1MHz
—
–77
—
dB
Signal-to-Noise Ratio
(w/o distortion, –0.5dB
dc to 100kHz
74
78
—
dB
100kHz to 500kHz
73
75
—
dB
500kHz to 1MHz
—
73
—
dB
Signal-to-Noise Ratio
(and distortion, –0.5dB)
dc to 100kHz
73
78
—
dB
100kHz to 500kHz
72
75
—
dB
500kHz to 1MHz
—
72
—
dB
Spurious Free Dyn. Range
dc to 100kHz
—
–86
–77
dB
100 to 500kHz
—
–81
–75
dB
500kHz to 1MHz
—
–78
—
dB
Two-tone IMD
—
85
—
dB
Input Bandwidth (–3dB)
Small Signal (–20dB input)
—
6
—
MHz
Large Signal (–0.5dB input)
—
1.75
—
MHz
Slew Rate
—
±250
—
V/µs
Aperture Delay Time
—
—
±10
ns
Aperature Uncertainty
—
—
5
ps, ms
S/H Acq. Time, (to ±0.003%FSR)
Sinusoidal (fin = 1MHz)
—
—
150
ns
Step input (10V)
—
250
450
ns
Conversion Rate
Sinusoidal (fin = 1MHz)
2
—
—
MHz
Step input
1.3
—
—
MHz
Feedthrough Rejection
(fin = 1MHz)
—
85
—
dB
Overvoltage Recovery, ±12V
—
1000
2000
ns
Noise
—
250
—
µVrms
POWER REQUIREMENTS
Power Supply Ranges
+15V Supply
+14.25
+15.0
+15.75
Volts
–15V Supply
–14.25
–15.0
–15.75
Volts
+5V Supply
+4.75
+5.0
+5.25
Volts
–5V Supply
–4.75
–5.0
–5.25
Volts
Power Supply Currents
+15V Supply
—
+65
+80
mA
–15V Supply
—
–19
–35
mA
+5V Supply
—
+150
+175
mA
–5V Supply
—
–55
–65
mA
Power Dissipation
—
2.2
2.6
Watts
Power Supply Rejection
—
—
±0.03
%FSR%V
PHYSICAL/ENVIRONMENTAL
Operating Temp. Range, Case
ADS-942AMC
0
—
+70
°C
ADS-942AME
–40
—
+85
°C
Storage Temperature Range
–65
—
+150
°C
Package Type
32-pin, metal-sealed, ceramic TDIP
Weight
0.46 ounces (13 grams)
FUNCTIONAL SPECIFICATIONS
(TA = +25°C, ±VCC = ±15V, ±VDD = ±5V, 2MHz sampling rate, and a minimum 7 minute
warmup unless otherwise specified.)
ANALOG INPUTS
MIN.
TYP.
MAX.
UNITS
Input Voltage Range
Unipolar
—
0 to +10
—
Volts
Bipolar
—
±5
—
Volts
Input Impedence
2.3
2.5
—
k
Ω
Input Capacitance
—
7
15
pF
DIGITAL INPUTS
Logic Levels
Logic "1"
+2.0
—
—
Volts
Logic "0"
—
—
+0.8
Volts
Logic Loading "1"
—
—
+10
µA
Logic Loading "0"
—
—
–600
µA
PERFORMANCE
Integral Non-Linearity
+25°C
—
±1
±2
LSB
0 to +70°C
—
±1
±2
LSB
–40 to +85°C
—
±2
±3
LSB
Differential Non-Linearity
+25°C
—
±0.5
±0.75
LSB
0 to +70°C
–0.95
±0.75
±0.95
LSB
–40 to +85°C
–1
±1
+2.5
LSB
Full Scale Absolute Accuracy
+25°C
—
±0.1
±0.122
%FSR
0 to +70°C
—
±0.12
±0.36
%FSR
–40 to +85°C
—
±0.45
±0.85
%FSR
Unipolar Zero Error
+25°C
—
±0.05
±0.122
%FSR
0 to +70°C
—
±0.1
±0.2
%FSR
–40 to ±85°C
—
±0.2
±0.3
%FSR
Bipolar Zero Error
+25°C
—
±0.05
±0.122
%FSR
0 to +70°C
—
±0.1
±0.2
%FSR
–40 to +85°C
—
±0.2
±0.3
%FSR
Bipolar Offset Error
+25°C
—
±0.1
±0.2
%FSR
0 to +70°C
—
±0.12
±0.3
%FSR
–40 to +85°C
—
±0.5
±0.8
%FSR
Gain Error
+25°C
—
±0.018
±0.122
%
0 to +70°C
—
±0.12
±0.3
%
–40 to +85°C
—
±0.6
±0.8
%
No Missing Codes (fin = 500kHz)
14 Bits
0 to +70°C
13 Bits
–40 to +85°C
Resolution
14 Bits
6.02
(SNR + Distortion) – 1.76 +
20 log
Full Scale Amplitude
Actual Input Amplitude
Footnote:
Effective Bits is equal to:
Same specification as In-Band Harmonics and Peak Harmonics.
Two-tone Intermodulation Distortion (IMD) conditions:
fin = 100kHz, 240kHz, fs = 2MHz, –0.5dB
Polish ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
