Rainbow Electronics MAX1109 - Manual (Page 4)

Wake-Up Time
MAX1108/MAX1109
Single-Supply, Low-Power,
2-Channel, Serial 8-Bit ADCs
4 _______________________________________________________________________________________
CS = V
DD
CS = V
DD
pF 15 C OUT Three-State Output Capacitance
µA ±0.01 ±10 I L Three-State Leakage Current
Figure 1, C LOAD = 100pF
Figure 1, C LOAD = 100pF
Figure 2, C LOAD = 100pF
ns 240 t DV
CS Fall to Output Enable
ns
CONDITIONS
20 200 t DO SCLK Fall to Output Data Valid
ns 240 t TR
CS Rise to Output Disable
ns 100 t DS DIN to SCLK Setup Time
µs 1.0 t ACQ Acquisition Time
ns 0 t DH DIN to SCLK Hold Time
External reference
Internal reference (Note 10)
µs 20
ns 200 t CL SCLK Pulse Width Low
ms 12
t WAKE Wake-Up Time
ns 0 t CSH
CS to SCLK Rise Hold
ns 100 t CSS
CS to SCLK Rise Setup
ns 200 t CH SCLK Pulse Width High
UNITS MIN TYP MAX SYMBOL PARAMETER
I SINK = 5mA
I SOURCE = 0.5mA
I SINK = 16mA
V 0.4
V V DD - 0.5 V OH Output High Voltage
V 0.8
V OL Output Low Voltage
ELECTRICAL CHARACTERISTICS—MAX1108 (continued)
(V DD = +2.7V to +3.6V; unipolar input mode; COM = GND, f SCLK = 500kHz, external clock mode (50% duty cycle); 10 clocks/conver-
sion cycle (50ksps); 1µF capacitor at REF, external +2.048V reference at REF; T A = T MIN to T MAX ; unless otherwise noted. Typical
values are at T A = +25°C.)
ELECTRICAL CHARACTERISTICS—MAX1109
(V DD = +4.5V to +5.5V; unipolar input mode; COM = GND, f SCLK = 500kHz, external clock (50% duty cycle); 10 clocks/conversion
cycle (50ksps); 1µF capacitor at REF, external +4.096V reference at REF; T A = T MIN to T MAX ; unless otherwise noted. Typical values
are at T A = +25°C.)
V DD = 4.5V to 5.5V LSB Offset Error ±0.2 ±1
LSB ±1
V DD = 4.5V to 5.5V
No missing codes over temperature
Gain Error (Note 3)
ppm/°C ±0.8
CONDITIONS
Gain Temperature Coefficient
T A = T MIN to T MAX
T A = +25°C
mV 50 V DD / 2 Sampling Accuracy
LSB
±0.5
TUE Total Unadjusted Error
±1
LSB ±0.1
Channel-to-Channel
Offset Matching
±0.15 ±0.5
bits 8 Resolution
LSB INL Relative Accuracy (Note 1)
LSB ±1 DNL Differential Nonlinearity
UNITS MIN TYP MAX SYMBOL PARAMETER
DIGITAL OUTPUT (DOUT)
TIMING CHARACTERISTICS (Figures 8, 9, and 10)
DC ACCURACY