Rainbow Electronics MAX1200 - Manual (Page 4)

MAX1200
+5V Single-Supply, 1Msps, 16-Bit
Self-Calibrating ADC
4 _______________________________________________________________________________________
DIGITAL INPUT AND OUTPUT CHARACTERISTICS
(AV DD = +5V ±5%, DV DD = DRV DD = +3.3V, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)
Note 1: Reference inputs driven by operational amplifiers for Kelvin-sensed operation.
Note 2: For unipolar mode, the analog input voltage, V INP , must be within 0 and V
REF
, V INN = V
CM
/ 2; where V REF = V RFPS - V RFNS .
For differential mode, the analog input voltages V INP and V INN must be within 0 and V REF ; where V REF = V RFPS - V RFNS . The
common-mode voltage of the inputs INP and INN is V CM = (V RFPS + V RFNS ) / 2.
Note 3: R I varies inversely with sample rate.
Note 4: Minimum and maximum parameters are not tested. Guaranteed by design.
Note 5: Calibration remains valid for temperature changes within ±20°C and power-supply variations ±5%. Guaranteed by design.
Note 6: All AC specifications are shown for the differential mode.
I SOURCE = 200µA
V IN = 0 or DV DD
CONDITIONS
4 Input Capacitance
DV DD - 0.8 V IH
0.8 V IL Input LOW Voltage
Input HIGH Voltage
DV DD DV DD
- 0.4 - 0.03
V OH Output High Voltage
0.8 V CLK CLK Input LOW Voltage
AV DD - 0.8 V CLK CLK Input HIGH Voltage
9 C CLK CLK Input Capacitance
±0.1 ±10 I IN Digital Input Current
MIN TYP MAX SYMBOL PARAMETER
I SINK = 1.6mA 70 400 V OL Output Low Voltage
±0.1 ±10 I
LEAKAGE
Three-State Leakage Current
3.5 C OUT Three-State Output Capacitance
mV
µA
pF
pF
V
V
V
V
V
pF
µA
UNITS
V IN = 0 or V DD ±1 ±10 I CLK CLK Input Current µA
C L = 20pF
CONDITIONS
ns 187 244 301 t CH Clock HIGH Time
ns 488 t CLK
ns 4 / f SAMPLE t CONV Conversion Time
Clock Period
ns 16 75 t REL Bus Relinquish Time
ns 16 75 t AC Data Access Time
ns 187 244 301 t
CL
Clock LOW Time
ns 70 150 t OD Output Delay
ns 1 / f
CLK
t
DAV
DAV Pulse Width
ns 65 145 t S CLK-to-DAV Rising Edge
UNITS MIN TYP MAX SYMBOL PARAMETER
ST_CAL = DV DD
f CLK
Cycles
17,400 t CAL Calibration Time
ns t CLK / 2 t ACQ Acquisition Time
TIMING CHARACTERISTICS (Figures 7, 8, 9)
(AV DD = +5V ±5%, DV DD = DRV DD = +3.3V, f CLK = 2.048MHz, T A = T MIN to T MAX , unless otherwise noted. Typical values are at
T A = +25°C.) (Note 1)