CS4373A Datasheet, PDF (6/34 Pages) Cirrus Logic – Low-power, High-performance Test DAC

CS4373A
ANALOG CHARACTERISTICS
Parameter
Symbol Min
Typ
Max
VREF Input
{VREF+} - {VREF-}
(Note 2, 3) VREF
-
2.500
-
VREF-
(Note 4) VREF-
-
VA -
-
VREF Input Current, AC modes
VREF Input Current, DC modes
VREF Input Noise
Analog OUT± Output
VREF_IAC
-
80
-
VREF_IDC
-
40
-
(Note 6) VREF_IN
-
-
1
Analog External Load at OUT±
Load Resistance ^R_LOUT
50
-
-
(Note 7, 8)
Load Capacitance C_LOUT
-
-
50
Differential Output Impedance
1/1 ZDIF_OUT
-
1.4
-
1/2
-
10.1
-
1/4
-
7.9
-
1/8
-
5.1
-
1/16
-
3.3
-
1/32
-
2.3
-
1/64
-
1.7
-
Single-ended Output Impedance
1/1 ZSE_OUT
-
0.7
-
1/2
-
7.4
-
1/4
-
9.0
-
1/8
-
9.4
-
1/16
-
9.5
-
1/32
-
9.5
-
1/64
-
9.4
-
High-Z Impedance
Crosstalk to BUF± High-Z Output
(Note 8) HZ_OUT
(Note 8) ^XT_OUT
-
3
-
-
-120
-
Analog BUF± Output
Analog External Load at BUF±
Load Resistance ^R_LBUF
1
-
-
(Note 8)
Load Capacitance C_LBUF
-
-
2
Differential Output Impedance
1/1 - 1/64 ZDIF_BUF
-
6
-
Single-ended Output Impedance
1/1 - 1/32 ZSE_BUF
-
3
-
(Note 9) (BUF-) 1/64
-
3
-
(Note 9) (BUF+) 1/64
-
50
-
High-Z Impedance
Crosstalk to OUT± High-Z Output
(Note 8)
(Note 8)
HZ_BUF
XT_BUF
-
4.5
-
-
-120
-
Unit
V
V
µA
µA
µV_rms
MΩ
pF
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
MΩ
dB
kΩ
nF
Ω
Ω
MΩ
dB
Notes: 6. Maximum integrated noise over the measurement bandwidth for the voltage reference device attached
to the VREF± inputs.
7. Load on the precision OUT± outputs is normally from the CS3301A / CS3302A amplifiers, which have
1 GΩ/1 TΩ typical input impedance and 18 pF typical input capacitance.
8. Guaranteed by design and/or characterization.
9. Single-ended output impedance at 1/64 is different for BUF+ and BUF- due to the output attenuator
architecture.
6
DS699F2