MAX19700 Ver la hoja de datos (PDF) - Maxim Integrated
Número de pieza
componentes Descripción
Lista de partido
MAX19700 Datasheet PDF : 32 Pages
| |||
7.5Msps, Ultra-Low-Power
Analog Front-End
ELECTRICAL CHARACTERISTICS (continued)
(VDD = 3V, OVDD = 1.8V, internal reference (1.024V), CL ≈ 10pF on all digital outputs, fCLK = 7.5MHz (50% duty cycle), ADC input
amplitude = -0.5dBFS, DAC output amplitude = 0dBFS, differential ADC input, differential DAC output, CREFP = CREFN = CCOM =
0.33µF. Typical values are at TA = +25°C, unless otherwise noted. CL < 5pF on all aux-DAC outputs.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Enable Time from Tx to Rx, (Ext1-
Tx to Ext1-Rx, Ext3-Tx to Ext3-Rx,
and SPI2-Tx to SPI1-Rx Modes)
tENABLE, RX ADC settles to within 1dB SINAD
7.3
µs
Enable Time from Rx to Tx, (Ext2-
Rx to Ext2-Tx, Ext3-Rx to Ext3-Tx,
and SPI1-Rx to SPI2-Tx Modes)
tENABLE,TX DAC settles to within 10 LSB error
5
µs
INTERNAL REFERENCE (REFIN = VDD; VREFP, VREFN, VCOM levels are generated internally)
Positive Reference
VREFP - VCOM
0.256
V
Negative Reference
VREFN - VCOM
-0.256
V
Common-Mode Output Voltage
VCOM
VDD / 2
- 0.15
VDD / 2
VDD / 2
+ 0.15
V
Maximum REFP/REFN/COM
Source Current
ISOURCE
2
mA
Maximum REFP/REFN/COM
Sink Current
ISINK
2
mA
Differential Reference Output
VREF
VREFP - VREFN
+0.490 +0.512 +0.534 V
Differential Reference Temperature
Coefficient
REFTC
±10
ppm/°C
BUFFERED EXTERNAL REFERENCE (external REFIN = 1.024V applied; VREFP, VREFN, VCOM levels are generated internally)
Reference Input Voltage
VREFIN
1.024
V
Differential Reference Output
VDIFF
VREFP - VREFN
0.512
V
Common-Mode Output Voltage
VCOM
VDD / 2
V
Maximum REFP/REFN/COM
Source Current
ISOURCE
2
mA
Maximum REFP/REFN/COM
Sink Current
ISINK
2
mA
REFIN Input Current
REFIN Input Resistance
DIGITAL INPUTS (CLK, SCLK, DIN, CS, D0–D9, T/R, SHDN)
-0.7
µA
500
kΩ
Input High Threshold
Input Low Threshold
Input Leakage
Input Capacitance
VINH
D0–D9, CLK, SCLK, DIN, CS, T/R, SHDN
0.7 x
OVDD
V
VINL
D0–D9, CLK, SCLK, DIN, CS, T/R, SHDN
0.3 x
V
OVDD
DIIN
D0–D9, CLK, SCLK, DIN, CS, T/R,
SHDN = OGND or OVDD
-1
+1
µA
DCIN
5
pF
8 _______________________________________________________________________________________
Share Link: 