Datasheet

DAC7565
www.ti.com SBAS412B –FEBRUARY 2008–REVISED MARCH 2011
ELECTRICAL CHARACTERISTICS
At AV
DD
= 2.7V to 5.5V and –40°C to +105°C range (unless otherwise noted).
DAC7565
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
STATIC PERFORMANCE
(1)
Resolution 12 Bits
Measured by the line
Relative accuracy passing through DAC7565A, DAC7565C ±0.5 ±1 LSB
codes 30 and 4050
Differential nonlinearity 12-bit monotonic ±0.1 ±0.5 LSB
Offset error ±5 ±8 mV
Offset error drift ±1 μV/°C
Measured by the line passing through codes 30 and
4050
Full-scale error ±0.2 ±0.5 % of FSR
Gain error ±0.05 ±0.2 % of FSR
AV
DD
= 5V ±1
ppm of
Gain temperature coefficient
FSR/°C
AV
DD
= 2.7V ±2
PSRR Power-supply rejection ratio Output unloaded 1 mV/V
OUTPUT CHARACTERISTICS
(2)
Output voltage range 0 V
REF
V
To ±0.024% FSR, 0020h to 3FD0h, R
L
= 2kΩ,
8 10
0pF < C
L
< 200pF
Output voltage settling time μs
R
L
= 2kΩ, C
L
= 500pF 12
Slew rate 2.2 V/μs
R
L
= ∞ 470
Capacitive load stability pF
R
L
= 2kΩ 1000
Code change glitch impulse 1LSB change around major carry 0.15 nV-s
Digital feedthrough SCLK toggling, SYNC high 0.15 nV-s
Channel-to-channel dc crosstalk Full-scale swing on adjacent channel 0.25 LSB
Channel-to-channel ac crosstalk 1kHz full-scale sine wave, outputs unloaded –100 dB
DC output impedance At mid-code input 1 Ω
Short-circuit current 50 mA
Coming out of power-down mode, AV
DD
= 5V 2.5
Power-up time μs
Coming out of power-down mode, AV
DD
= 3V 5
AC PERFORMANCE
(2)
SNR 81 dB
THD –75 dB
T
A
= +25°C, BW = 20kHz, V
DD
= 5V, f
OUT
= 1kHz.
First 19 harmonics removed for SNR calculation.
SFDR 79 dB
SINAD 74 dB
DAC output noise density T
A
= +25°C, at mid-code input, f
OUT
= 1kHz 120 nV/√Hz
DAC output noise T
A
= +25°C, at mid-code input, 0.1Hz to 10Hz 6 μV
PP
REFERENCE
AV
DD
= 5.5V 360 μA
Internal reference current consumption
AV
DD
= 3.6V 348 μA
External V
REF
= 2.5V, if internal reference is disabled,
External reference current 80 μA
all four channels active
Reference input range V
REF
H voltage V
REF
L < V
REF
H, AV
DD
– (V
REF
H + V
REF
L) /2 > 1.2V 0 AV
DD
V
Reference input range V
REF
L voltage V
REF
L < V
REF
H, AV
DD
– (V
REF
H + V
REF
L) /2 > 1.2V 0 AV
DD
/2 V
Reference input impedance 31 kΩ
(1) Linearity calculated using a reduced code range of 30 to 4050; output unloaded.
(2) Ensured by design or characterization; not production tested.
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