MAX187BMJA Maxim Integrated, MAX187BMJA Datasheet - Page 4

• Manufacturer Part Number: MAX187BMJA
• Description: Analog to Digital Converters - ADC
• Manufacturer: Maxim Integrated

Specifications of MAX187BMJA

• Number Of Channels: 1
• Architecture: SAR
• Conversion Rate: 75 KSPs
• Resolution: 12 bit
• Input Type: Single-Ended
• Snr: Yes
• Interface Type: QSPI, Serial (SPI, Microwire)
• Operating Supply Voltage: 4.75 V to 5.25 V
• Maximum Operating Temperature: + 125 C
• Package / Case: CDIP N
• Maximum Power Dissipation: 500 mW
• Minimum Operating Temperature: - 55 C
• Number Of Converters: 1
• Voltage Reference: 4.096 V

ELECTRICAL CHARACTERISTICS (continued)
(V
ence: V
at REF pin; T
TIMINg CHARACTERISTICS
(V
Note 1: Tested at V
Note 2: Relative accuracy is the deviation of the analog value at any code from its theoretical value after the full-scale range has
Note 3: MAX187—internal reference, offset nulled; MAX189–external +4.096V reference, offset nulled. Excludes reference errors.
Note 4: Guaranteed by design. Not subject to production testing.
Note 5: External load should not change during conversion for specified ADC accuracy.
Note 6: DC test, measured at 4.75V and 5.25V only.
Note 7: To guarantee acquisition time, t
Maxim Integrated
DIgITAL OuTPuT (DOuT)
Output Voltage Low
Output Voltage High
Three-State Leakage Current
Three-State Output Capacitance
POWER REQuIREMENTS
Supply Voltage
Supply Current
Power-Supply Rejection
Track/Hold Acquisition Time
SCLK Fall to Output Data Valid
CS Fall to Output Enable
CS Rise to Output Disable
SCLK Clock Frequency
SCLK Pulse Width High
SCLK Pulse Width Low
SCLK Low to CS Fall Setup Time
CS Pulse Width
DD
DD
= +5V ±5%; V
= +5V ±5%, T
REF
been calibrated.
time needed for the signal to be acquired.
PARAMETER
PARAMETER
= 4.096V, 4.7µF capacitor at REF pin, or MAX189—external reference: V
A
= T
MIN
GND
A
DD
= T
to T
= +5V.
= 0V; unipolar input mode; 75ksps, f
MIN
MAX
to T
; unless otherwise noted.)
MAX
SYMBOL
SYMBOL
; unless otherwise noted.)
t
C
t
t
SCLK
+5V, Low-Power, 12-Bit Serial ADCs
V
V
PSR
ACQ
t
t
CSO
V
t
t
t
t
I
DQ
DV
CH
CS
ACQ
OUT
TR
CL
DD
OH
I
DD
OL
L
is the maximum time the device takes to acquire the signal, and is also the minimum-
CS = high (Note7)
C
C
C
I
I
I
V
V
Operating mode
Power-down mode
V
4.096V; full-scale input (Note 6)
SINK
SINK
SOURCE
LOAD
LOAD
LOAD
CS
CS
DD
= 5V
= 5V (Note 4)
= +5V Q5%; external reference,
= 5mA
= 16mA
= 100pF
= 100pF
= 100pF
= 1mA
CLK
CONDITIONS
CONDITIONS
= 4.0MHz, external clock (50% duty cycle); MAX187—internal refer-
MAX18_ _C/E
MAX18_ _M
MAX187
MAX189
REF
= 4.096V applied to REF pin, 4.7µF capacitor
MAX187/MAX189
MIN
100
100
500
4.75
1.5
MIN
20
20
50
4
Q0.06
TYP
TYP
0.3
1.5
1.0
2
MAX
150
200
100
100
MAX
Q0.5
5.25
Q10
0.4
2.5
2.0
5
15
10
uNITS
uNITS
MHz
mA
mV
µs
ns
ns
ns
ns
ns
ns
ns
FA
FA
pF
V
V
V
4