Datasheet

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ELECTRICAL CHARACTERISTICS
TLV5637
SLAS224C – JUNE 1999 – REVISED JUNE 2007
Over recommended operating conditions (unless otherwise noted).
POWER SUPPLY
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Fast 4.2 7 mA
V
DD
= 5V, Int. ref.
Slow 2 3.6 mA
Fast 3.7 6.3 mA
V
DD
= 3V, Int. ref.
Slow 1.7 3.0 mA
No load, All inputs = AGND or
I
DD
Power supply current
V
DD
, DAC latch = 0x800
Fast 3.8 6.3 mA
V
DD
= 5V, Ext. ref.
Slow 1.7 3.0 mA
Fast 3.4 5.7 mA
V
DD
= 3V, Ext. ref.
Slow 1.4 2.6 mA
Power-down supply current 0.01 10 µA
Zero scale, See
(1)
65
PSRR Power supply rejection ratio dB
Full scale, See
(2)
65
(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 10 bits
INL Integral nonlinearity, end point adjusted See
(1)
±0.4 ±1 LSB
DNL Differential nonlinearity See
(2)
±0.1 ±0.5 LSB
E
ZS
Zero-scale error (offset error at zero scale) See
(3)
±24 mV
E
ZS
TC Zero-scale-error temperature coefficient See
(4)
10 ppm/°C
% full
E
G
Gain error See
(5)
±0.6
scale V
E
G
T
C
Gain error temperature coefficient See
(6)
10 ppm/°C
OUTPUT SPECIFICATIONS
V
O
Output voltage R
L
= 10k Ω 0 V
DD
–0.4 V
% full
Output load regulation accuracy V
O
= 4.096V, 2.048V, R
L
= 2 k Ω ±0.25
scale V
(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. Tested from code 32 to 4095.
(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.
(4) Zero-scale-error temperature coefficient is given by: E
ZS
TC = [E
ZS
(T
max
) – E
ZS
(T
min
)]/V
ref
× 10
6
/(T
max
– T
min
).
(5) Gain error is the deviation from the ideal output (2V
ref
– 1LSB) 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
)]/V
ref
× 10
6
/(T
max
– T
min
).
4
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