
ADS -943
2
ABSOLUTE MAXIMUM RATINGS
PARAMETERS
LIMITS
UNITS
+5V Supply
(Pins 13, 22)
–5V Supply
(Pin 20)
Digital Input
(Pin 18)
Analog Input
(Pin 21)
Lead Temperature
(10 seconds)
0 to +6
0 to –6
Volts
Volts
Volts
Volts
°C
–0.3 to +V
DD
+0.3
–5 to +5
+300
PHYSICAL/ENVIRONMENTAL
PARAMETERS
MIN.
TYP.
MAX.
UNITS
Operating Temp. Range, Case
ADS-943MC, GC
ADS-943MM GM 883, G/883
Thermal Impedance
θ
jc
θ
ca
Storage Temperature Range
Package Type
Weight
0
—
—
+70
+125
°C
°C
–55
—
—
–65
24-pin,metal-sealed, ceramc DDIP or SMT
0.42 ounces (12 grams)
6
23
—
—
—
°C/Watt
°C/Watt
°C
+150
+25°C
0 to +70°C
–55 to +125°C
ANALOG INPUT
MIN.
TYP.
MAX.
MIN.
TYP.
MAX.
MIN.
TYP.
MAX.
UNITS
Input Voltage Range
Input Resistance
Input Capacitance
—
—
—
±2
280
6
—
—
15
—
—
—
±2
280
6
—
—
15
—
—
—
±2
280
6
—
—
15
Volts
pF
DIGITAL INPUT
Logic Levels
Logic "1"
Logic "0"
Logic Loading "1"
Logic Loading "0"
Start Convert Positive Pulse Width
+2.0
—
—
—
10
—
—
—
—
20
—
+0.8
+20
–20
—
+2.0
—
—
—
10
—
—
—
—
20
—
+0.8
+20
–20
—
+2.0
—
—
—
10
—
—
—
—
20
—
+0.8
+20
–20
—
Volts
Volts
μA
μA
ns
STATIC PERFORMANCE
Resolution
Integral Nonlinearity
(f
in
= 10kHz)
Differential Nonlinearity
(f
in
= 10kHz)
Full Scale Absolute Accuracy
Bipolar Zero Error
(Tech Note 2)
Gain Error
(Tech Note 2)
No Missing Codes
(f
in
= 10kHz)
—
—
14
—
—
—
—
14
—
—
—
—
14
±1
—
—
+1.5
±0.6
±0.6
±1.25
—
Bits
LSB
LSB
%FSR
%FSR
%
Bits
±0.75
±0.5
±0.15
±0.1
±0.2
—
±0.75
±0.5
±0.15
±0.1
±0.2
—
–0.95
—
—
—
14
+1.25
±0.4
±0.3
±0.5
—
–0.95
—
—
—
14
+1.25
±0.4
±0.3
±0.5
—
–0.95
—
—
—
14
±0.75
±0.4
±0.3
±0.4
—
DYNAMIC PERFORMANCE
Peak Harmonics
(–0.5dB)
dc to 500kHz
500kHz to 1MHz
1MHz to 1.5MHz
Total Harmonic Distortion
(–0.5dB)
dc to 500kHz
500kHz to 1MHz
1MHz to 1.5MHz
Signal-to-Noise Ratio
(w/o distortion, –0.5dB)
dc to 500kHz
500kHz to 1MHz
1MHz to 1.5MHz
Signal-to-Noise Ratio
(& distortion, –0.5dB)
dc to 500kHz
500kHz to 1MHz
1MHz to 1.5MHz
Noise
Two-Tone Intermodulation
Distortion
(f
in
= 975kHz,
1.2MHz, f
s
= 3MHz, –0.5dB)
Input Bandwidth
(–3dB)
Small Signal (–20dB input)
Large Signal (–0dB input)
Feedthrough Rejection
(f
in
= 1.5MHz)
Slew Rate
Aperture Delay Time
Aperture Uncertainty
—
—
—
–83
–83
–83
–77
–77
–77
—
—
—
–83
–83
–83
–77
–77
–77
—
—
—
–81
–81
–81
–75
–75
–75
dB
dB
dB
—
—
—
–80
–80
–80
–76
–76
–76
—
—
—
–80
–80
–80
–76
–76
–76
—
—
—
–78
–77
–77
–74
–73
–73
dB
dB
dB
76
76
75
79
79
78
—
—
—
76
76
75
79
79
78
—
—
—
75
74
74
78
77
77
—
—
—
dB
dB
dB
73
73
73
—
77
77
77
125
—
—
—
—
73
73
73
—
77
77
77
125
—
—
—
—
71
71
71
—
75
75
74
125
—
—
—
—
dB
dB
dB
μVrms
—
–82
—
—
–82
—
—
–82
—
dB
—
—
—
—
—
—
30
10
85
±400
+5
2
—
—
—
—
—
—
—
—
—
—
—
—
30
10
85
±400
+5
2
—
—
—
—
—
—
—
—
—
—
—
—
30
10
85
±400
+5
2
—
—
—
—
—
—
MHz
MHz
dB
V/μs
ns
ps rms
FUNCTIONAL SPECIFICATIONS
(T
A
= +25°C, ±V
DD
= ±5V, 3MHz sampling rate, and a mnimum3 mnute warmup
unless otherwise specified.)