THS1040_15 Datasheet, PDF (6/33 Pages) Texas Instruments – CMOS ANALOG-TO-DIGITAL CONVERTER

THS1040
Not Recommended For New Designs
SLAS290C − OCTOBER 2001 − REVISED OCTOBER 2004
electrical characteristics
over recommended operating conditions, AVDD = 3 V, DVDD = 3 V, fs = 40 MSPS/50% duty cycle, MODE = AVDD (internal reference),
differential input range = 1 VPP and 2 VPP, TA = Tmin to Tmax (unless otherwise noted) (continued)
dynamic performance (ADC)
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNIT
ENOB Effective number of bits
f = 4.8 MHz, −0.5 dBFS
8.8 9.6
f = 20 MHz, −0.5 dBFS
Bits
9.5
SFDR Spurious free dynamic range
f = 4.8 MHz, −0.5 dBFS
60.5
72
f = 20 MHz, −0.5 dBFS
dB
70
THD Total harmonic distortion
f = 4.8 MHz, −0.5 dBFS
f = 20 MHz, −0.5 dBFS
−72.5 −61.3
dB
− 71.6
SNR Signal-to-noise ratio
f = 4.8 MHz, −0.5 dBFS
55.7
60
f = 20 MHz, −0.5 dBFS
dB
57
SINAD Signal-to-noise and distortion
f = 4.8 MHz, −0.5 dBFS
55.6 59.7
f = 20 MHz, −0.5 dBFS
dB
59.6
BW
Full power bandwidth (−3 dB)
900
MHz
digital specifications
Digital Inputs
PARAMETER
VIH
High-level input voltage
VIL
Low-level input voltage
IIH
High-level input current
IIL
Low-level input current
Ci
Input capacitance
Digital Outputs
VOH
High-level output voltage
VOL
Low-level output voltage
High-impedance output current
Clock input
All other inputs
Clock input
All other inputs
Iload = 50 µA
Iload = −50 µA
Rise/fall time
Clock Input
tc
tw(CKH)
tw(CKL)
Clock cycle time
Pulse duration, clock high
Pulse duration, clock low
Clock duty cycle
td(o)
Clock to data valid, delay time
Pipeline latency
td(AP)
Aperture delay time
Aperture uncertainty (jitter)
Cload = 15 pF
timing
PARAMETER
td(DZ)
td(DEN)
VO(BIASREF)
Output disable to Hi-Z output, delay time
Output enable to output valid, delay time
Output voltage
MODE = AVDD
MIN
NOM MAX
UNIT
0.8 × AVDD
0.8 × DVDD
V
0.2 × AVDD
0.2 × DVDD
V
1 µA
|−1| µA
5
pF
DVDD−0.4
3.5
V
0.4 V
±1 µA
ns
25
11.25
11.25
45%
50%
9.5
4
0.1
1
200
110
110
55%
16
ns
ns
ns
ns
Cycles
ns
ps
MIN
0
0
(AVDD/2) − 0.1
TYP
MAX
10
10
(AVDD/2) + 0.1
UNIT
ns
ns
V
6
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