Datasheet

DAC7642, DAC7643
3
SBAS233
www.ti.com
DAC7642VF DAC7642VFB
DAC7643VF DAC7643VFB
PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
ACCURACY
Linearity Error ±3 ±4 ±2 ±3 LSB
Linearity Match ±4 ±2 LSB
Differential Linearity Error ±2 ±3 ±1 ±2 LSB
Monotonicity, T
MIN
to T
MAX
14 15 Bits
Bipolar Zero Error ±1 ±3 ✻✻ mV
Bipolar Zero Error Drift 5 10 ✻✻ppm/°C
Full-Scale Error ±1 ±3 ✻✻ mV
Full-Scale Error Drift 5 10 ✻✻ppm/°C
Bipolar Zero Matching Channel-to-Channel Matching ±1 ±3 ±1 ±3mV
Full-Scale Matching Channel-to-Channel Matching ±1 ±3 ±1 ±3mV
Power-Supply Rejection Ratio (PSRR) At Full-Scale 10 100 ✻✻ppm/V
ANALOG OUTPUT
Voltage Output R
L
= 10kΩ V
REF
LV
REF
H ✻✻V
Output Current –1.25 +1.25 ✻✻mA
Maximum Load Capacitance No Oscillation 500 ✻ pF
Short-Circuit Current –10, +30 ✻ mA
Short-Circuit Duration GND, V
CC
or V
SS
Indefinite ✻
REFERENCE INPUT
Ref High Input Voltage Range
V
REF
L + 1.25 +2.5 ✻✻V
Ref Low Input Voltage Range –2.5
V
REF
H – 1.25 ✻✻V
Ref High Input Current 500 ✻ µA
Ref Low Input Current –500 ✻ µA
DYNAMIC PERFORMANCE
Settling Time To ±0.003%, 5V Output Step 8 10 ✻✻ µs
Channel-to-Channel Crosstalk See Figure 5 0.5 ✻ LSB
Digital Feedthrough 2 ✻ nV-s
Output Noise Voltage f = 10kHz 60 ✻ nV/√Hz
DAC Glitch
7FFF
H
to 8000
H
or 8000
H
to 7FFF
H
40 ✻ nV-s
DIGITAL INPUT
V
IH
0.7 • V
CC
✻ V
V
IL
0.3 • V
CC
✻ V
I
IH
±10 ✻ µA
I
IL
±10 ✻ µA
DIGITAL OUTPUT
V
OH
I
OH
= –0.8mA 3.6 4.5 ✻✻ V
V
OL
I
OL
= 1.2mA 0.3 0.4 ✻✻ V
POWER SUPPLY
V
CC
+4.75 +5.0 +5.25 ✻✻✻ V
V
SS
–5.25 –5.0 –4.75 ✻✻✻ V
I
CC
0.7 1.1 ✻✻ mA
I
SS
–1.2 –0.8 ✻✻ mA
Power 7.5 11.5 ✻✻ mW
TEMPERATURE RANGE
Specified Performance –40 +85 ✻✻°C
✻ Specifications same as DAC7642VF and DAC7643VF.
ELECTRICAL CHARACTERISTICS (Dual Supply)
At T
A
= T
MIN
to T
MAX
, V
CC
= +5V, V
SS
= –5V, V
REF
H = +2.5V, and V
REF
L = –2.5V, unless otherwise noted.