ADS-946 ETC, ADS-946 Datasheet - Page 2

• Manufacturer Part Number: ADS-946
• Description: ADS-946 14-Bit/ 8MHz Sampling A/D Converters
• Manufacturer: ETC

ABSOLUTE MAXIMUM RATINGS
ADS-946
FUNCTIONAL SPECIFICATIONS
(T
PARAMETERS
+5V Supply (Pins 13, 22)
–5V Supply (Pin 20)
Digital Input (Pin 18)
Analog Input (Pin 21)
Lead Temperature (10 seconds)
ANALOG INPUT
Input Voltage Range
Input Resistance
Input Capacitance
DIGITAL INPUT
Logic Levels
Start Convert Positive Pulse Width
STATIC PERFORMANCE
Resolution
Integral Nonlinearity (f
Differential Nonlinearity (f
Full Scale Absolute Accuracy
Bipolar Zero Error (Tech Note 2)
Gain Error (Tech Note 2)
No Missing Codes (f
DYNAMIC PERFORMANCE
Peak Harmonics (–0.5dB)
Total Harmonic Distortion (–0.5dB)
Signal-to-Noise Ratio
Signal-to-Noise Ratio
Noise
Two-Tone Intermodulation
Input Bandwidth (–3dB)
Feedthrough Rejection (f
Slew Rate
Aperture Delay Time
Aperture Uncertainty
A
= +25°C, ±V
Logic "1"
Logic "0"
Logic Loading "1"
Logic Loading "0"
dc to 500kHz
500kHz to 1MHz
1MHz to 4MHz
dc to 500kHz
500kHz to 1MHz
1MHz to 4MHz
(w/o distortion, –0.5dB)
dc to 500kHz
500kHz to 1MHz
1MHz to 4MHz
(& distortion, –0.5dB)
dc to 500kHz
500kHz to 1MHz
1MHz to 4MHz
Distortion (f
1.975MHz, f
Small Signal (–20dB input)
Large Signal (–0.5dB input)
DD
s
in
= 8MHz, –0.5dB)
= 2.45MHz,
= ±5V, 8MHz sampling rate, and a minimum 3 minute warmup
in
in
= 10kHz)
= 10kHz)
in
in
= 10kHz)
= 4MHz)
–0.3 to +V
LIMITS
0 to +6
0 to –6
+300
MIN.
–0.95
±5
+2.0
10
14
73
73
73
70
69
69
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
DD
+0.3
+25°C
±0.75
±0.15
TYP.
±400
±0.5
±0.2
±0.2
200
–76
–75
–75
–75
–75
–75
150
–82
±2
20
14
77
77
77
74
73
73
30
10
85
+5
—
—
—
—
—
6
2
UNITS
Volts
Volts
Volts
Volts
°C
MAX.
+1.25
±0.75
+0.8
±0.4
±0.4
+20
–20
–72
–72
–71
–71
–70
–70
15
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
unless otherwise specified.)
2
–0.95
+2.0
MIN.
—
—
—
—
—
—
—
—
—
—
10
—
—
—
—
—
14
—
—
—
—
—
—
73
73
73
70
69
69
—
—
—
—
PHYSICAL/ENVIRONMENTAL
PARAMETERS
Operating Temp. Range, Case
Thermal Impedance
Storage Temperature Range
Package Type
Weight
ADS-946MC, GC
ADS-946MM, GM, 883, G/883
0 to +70°C
jc
ca
±0.75
±0.15
TYP.
±400
±0.5
±0.2
±0.2
–76
–75
–82
200
–75
–75
–75
–75
150
±2
20
14
77
77
77
74
73
73
30
10
—
—
—
—
—
+5
85
6
2
MAX.
+1.25
±0.75
+0.8
±0.4
±0.4
+20
–20
–72
–72
–71
–71
–70
–70
15
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
–0.95
+2.0
MIN.
10
14
72
72
72
68
65
65
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
MIN.
–55
–65
24-pin, metal-sealed, ceramic DDIP or SMT
—
—
0
–55 to +125°C
±0.75
±400
TYP.
±0.4
±0.4
±0.4
0.42 ounces (12 grams)
–69
–82
®
200
–74
–74
–69
–74
–72
150
85
+5
±2
—
—
—
—
20
14
±1
—
76
76
76
73
70
70
30
10
2
6
TYP.
23
—
—
—
6
MAX.
+1.99
±0.65
±1.25
+0.8
±0.8
–68
–65
–68
–64
+20
–20
–70
–70
MAX.
—
—
15
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
+125
+150
—
—
—
—
+70
—
—
UNITS
UNITS
%FSR
%FSR
µVrms
°C/Watt
°C/Watt
ps rms
Volts
Volts
Volts
MHz
MHz
LSB
LSB
Bits
Bits
V/µs
pF
µA
µA
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
ns
%
dB
ns
°C
°C
°C
®