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ADS931 Datasheet(PDF) 2 Page - Burr-Brown (TI)

[Old version datasheet] Texas Instruments acquired Burr-Brown Corporation.
Part # ADS931
Description  8-Bit, 30MHz Sampling ANALOG-TO-DIGITAL CONVERTER
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Manufacturer  BURR-BROWN [Burr-Brown (TI)]
Direct Link  http://www.burr-brown.com
Logo BURR-BROWN - Burr-Brown (TI)

ADS931 Datasheet(HTML) 2 Page - Burr-Brown (TI)

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2
®
ADS931
SPECIFICATIONS
At TA = full specified temperature range unless otherwise noted. +VS = LVDD = +3V, specified single-ended input (1V to 2V) and sampling rate = 30MHz, unless
otherwise specified. The input range is 2.25V to 3.25V when specified for +5V operation.
ADS931E
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
RESOLUTION
8
Bits
SPECIFIED TEMPERATURE RANGE
Ambient Air
–40 to +85
°C
ANALOG INPUT
Specified Full Scale Input Range(1)
1Vp-p
+1.0
+2.0
V
Common-mode Voltage
+1.5
V
Analog Input Bias Current
1
µA
Input Impedance
1.25 || 5
M
Ω || pF
DIGITAL INPUTS
Logic Family
TTL/HCT Compatible CMOS
High Input Voltage, VIH
+2.0
LVDD
V
Low Input Voltage, VIL
+0.8
V
High Input Current, IIH
±10
µA
Low Input Current, IIL
±10
µA
Input Capacitance
5pF
CONVERSION CHARACTERISTICS
Start Conversion
Rising Edge of Convert Clock
Sample Rate
10k
30M
Samples/s
Data Latency
5
Clk Cycles
DYNAMIC CHARACTERISTICS
Differential Linearity Error
VS = +3V and +5V
f = 500MHz
±0.7
±1.0
LSB
f = 12.5MHz
±0.7
LSB
No Missing Codes
VS = +3V and +5V
Guaranteed
Integral Nonlinearity Error, f = 500kHz
VS = +3V and +5V
±1.0
±2.5
LSB
Spurious Free Dynamic Range(2)
VS = +3V and +5V
f = 500kHz (–1dBFS input)
49
dBFS(3)
f = 12.5MHz (–1dBFS input)
43
49
dBFS
Two-Tone Intermodulation Distortion(4)
f = 3.6MHz and 3.5MHz (–7dBFS each tone)
54
dBFS
Signal-to-Noise Ratio (SNR)
VS = +3V and +5V
f = 500kHz (–1dBFS input)
48
dB
f = 12.5MHz (–1dBFS input)
44
48
dB
Signal-to-(Noise + Distortion) (SINAD)
VS = +3V and +5V
f = 500kHz (–1dBFS input)
45
dB
f = 12.5MHz (–1dBFS input)
40
45
dB
Effective Number of Bits
f = 12MHz(5)
7.2
Bits
Differential Gain Error
NTSC, PAL
2.3
%
Differential Phase Error
NTSC, PAL
1
degrees
Output Noise
Input AC-Grounded
0.2
LSBs rms
Aperture Delay Time
2ns
Aperture Jitter
7
ps rms
Analog Input Bandwidth
Small Signal
–20dBFS Input
350
MHz
Full Power
0dBFS Input
100
MHz
Overvoltage Recovery Time(6)
2ns
DIGITAL OUTPUTS
CL = 15pF
Logic Family
TTL/HCT Compatible CMOS
Logic Coding
Straight Offset Binary
High Output Voltage, VOH
2.4
VDD
V
Low Output Voltage, VOL
0.4
V
3-State Enable Time
OE = L
20
40
ns
3-State Disable Time
OE = H
2
10
ns
Internal Pull-Down
50
k
Power-Down Enable Time
Pwrdn = L
133
ns
Power-Down Disable Time
Pwrdn = H
18
ns
Internal Pull-Down
50
k
ACCURACY
VS = +3V and +5V
Gain Error
2.4
3.5
%FS
Input Offset(7)
Referred to Ideal Midscale
±6.5
±25
mV
Power Supply Rejection (Gain)
∆ V
S = +10%
42
75
dB
External REFT Voltage Range
REFB +0.5
2
VS–0.8
V
External REFB Voltage Range
0.8
1
REFT –0.5
V
Reference Input Resistance
4k


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