Datasheet

www.ti.com
ELECTRICAL CHARACTERISTICS
TLV5639C
TLV5639I
SLAS189C – MARCH 1999 – REVISED JANUARY 2004
over operating free-air temperature range (unless otherwise noted)
POWER SUPPLY
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Fast 2.3 2.8 mA
REF
on
Slow 1.3 1.6 mA
V
DD
= 5 V
Fast 1.9 2.4 mA
REF
No load,
off
Slow 0.9 1.2 mA
I
DD
Power supply current All inputs = AGND or V
DD
,
Fast 2.1 2.6 mA
REF
DAC latch = 0x800
on
Slow 1.2 1.5 mA
V
DD
= 3 V
Fast 1.8 2.3 mA
REF
off
Slow 0.9 1.1 mA
Power down supply current 0.01 1 µA
Zero scale, External reference
(1)
60
PSRR Power supply rejection ratio dB
Full scale, External reference
(2)
60
(1) Power supply rejection ratio at zero scale is measured by varying V
DD
and is given by:
PSRR = 20 log [(E
ZS
(V
DD
max) - E
ZS
(V
DD
min))/V
DD
max]
(2) Power supply rejection ratio at full scale is measured by varying V
DD
and is given by:
PSRR = 20 log [(E
G
(V
DD
max) - E
G
(V
DD
min))/V
DD
max]
STATIC DAC SPECIFICATIONS
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Resolution 12 bits
INL Integral nonlinearity, end point adjusted R
L
= 10 kΩ, C
L
= 100 pF, See note
(1)
±1.2 ±3 LSB
DNL Differential nonlinearity R
L
= 10 kΩ, C
L
= 100 pF, See note
(2)
±0.3 ±0.5 LSB
E
ZS
Zero-scale error (offset error at zero scale) See note
(3)
±12 LSB
E
ZS
TC Zero-scale-error temperature coefficient See note
(4)
20 ppm/°C
% full
E
G
Gain error See note
(5)
±0.3
scale V
E
G
TC Gain error temperature coefficient See note
(6)
20 ppm/°C
(1) The relative accuracy or integral nonlinearity (INL) sometimes referred to as linearity error, is the maximum deviation of the output from
the line between zero and full scale excluding the effects of zero code and full-scale errors (see text).
(2) The differential nonlinearity (DNL) sometimes referred to as differential error, is the difference between the measured and ideal 1 LSB
amplitude change of any two adjacent codes. Monotonic means the output voltage changes in the same direction (or remains constant)
as a change in the digital input code.
(3) Zero-scale error is the deviation from zero voltage output when the digital input code is zero (see text).
(4) Zero-scale-error temperature coefficient is given by: E
ZS
TC = [E
ZS
(T
max
) - E
ZS
(T
min
)]/2V
ref
× 10
6
/(T
max
- T
min
).
(5) Gain error is the deviation from the ideal output (2V
ref
- 1 LSB) with an output load of 10 k excluding the effects of the zero-error.
(6) Gain temperature coefficient is given by: E
G
TC = [E
G
(T
max
) - E
G
(T
min
)]/2V
ref
× 10
6
/(T
max
- T
min
).
OUTPUT SPECIFICATIONS
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
O
Output voltage R
L
= 10 kΩ V
DD
-0.4 V
% full
Output load regulation accuracy V
O
= 4.096 V, 2.048 V, R
L
= 2 kΩ ±0.29
scale V
4