Datasheet

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OPERATING CHARACTERISTICS
DIGITAL INPUT TIMING REQUIREMENTS
TLV5639C
TLV5639I
SLAS189C – MARCH 1999 – REVISED JANUARY 2004
over recommended operating free-air temperature range, V
ref
= 2.048 V, and V
ref
= 1.024 V, (unless otherwise noted)
ANALOG OUTPUT DYNAMIC PERFORMANCE
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Fast 1 3
Output settling time, full R
L
= 10 kΩ, C
L
= 100 pF,
t
s(FS)
µs
scale see note
(1)
Slow 3.5 7
Fast 0.5 1.5
Output settling time, code R
L
= 10 kΩ, C
L
= 100 pF,
t
s(CC)
µs
to code see note
(2)
Slow 1 2
Fast 6 10
R
L
= 10 kΩ, C
L
= 100 pF,
SR Slew rate V/µs
see note
(3)
Slow 1.2 1.7
Glitch energy DIN = 0 to 1, f
CLK
= 100 kHz, CS = V
DD
5 nV-S
SNR Signal-to-noise ratio 73 78
SINAD Signal-to-noise + distortion 61 67
f
s
= 480 kSPS,
f
out
= 1 kHz,
f
B
= 20 kHz, dB
THD Total harmonic distortion 69 62
R
L
= 10 kΩ,
C
L
= 100 pF
Spurious free dynamic
SFDR 63 74
range
(1) Settling time is the time for the output signal to remain within ±0.5 LSB of the final measured value for a digital input code change of
0x020 to 0xFDF or 0xFDF to 0x020.
(2) Settling time is the time for the output signal to remain within ± 0.5 LSB of the final measured value for a digital input code change of
one count.
(3) Slew rate determines the time it takes for a change of the DAC output from 10% to 90% full-scale voltage.
MIN NOM MAX UNIT
t
su(CS-WE)
Setup time, CS low before negative WE edge 15 ns
t
su(D)
Setup time, data ready before positive WE edge 10 ns
t
su(R)
Setup time, REG ready before positive WE edge 20 ns
t
h(DR)
Hold time, data and REG held valid after positive WE edge 5 ns
t
su(WE-LD)
Setup time, positive WE edge before LDAC low 5 ns
t
wH(WE)
Pulse duration, WE high 20 ns
t
w(LD)
Pulse duration, LDAC low 23 ns
6