MAX1258BETM+ Maxim Integrated Products, MAX1258BETM+ Datasheet - Page 7

• Manufacturer Part Number: MAX1258BETM+
• Description: IC ADC/DAC 12BIT 48-TQFN
• Manufacturer: Maxim Integrated Products
• Type: ADC, DACr

Specifications of MAX1258BETM+

• Resolution (bits): 12 b
• Sampling Rate (per Second): 225k
• Data Interface: Serial
• Voltage Supply Source: Analog and Digital
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS (continued)
(AV
(MAX1220/MAX1258), external reference V
unless otherwise noted. Typical values are at AV
Outputs are unloaded, unless otherwise noted.)
TIMING CHARACTERISTICS (Figures 6–13)
SCLK Clock Period
SCLK Pulse-Width High
SCLK Pulse-Width Low
GPIO Output Rise/Fall After
CS Rise
GPIO Input Setup Before CS
Fall
LDAC Pulse Width
SCLK Fall to DOUT Transition
(Note 16)
SCLK Rise to DOUT Transition
(Notes 16, 17)
CS Fall to SCLK Fall Setup Time
SCLK Fall to CS Rise Setup Time
DIN to SCLK Fall Setup Time
DIN to SCLK Fall Hold Time
CS Pulse-Width High
CS Rise to DOUT Disable
CS Fall to DOUT Enable
EOC Fall to CS Fall
CS or CNVST Rise to EOC
Fall—Internally Clocked
Conversion Time
CNVST Pulse Width
DD
= DV
PARAMETER
DD
12-Bit, Multichannel ADCs/DACs with FIFO,
= 2.7V to 3.6V (MAX1257), external reference V
_______________________________________________________________________________________
Temperature Sensing, and GPIO Ports
SYMBOL
t
LDACPWL
t
CSPWH
t
t
t
t
t
t
t
t
t
t
t
GOD
DOD
CSW
t
GSU
DOT
DOT
CSH
t
DOE
DOV
t
CSS
t
RDS
t
CP
CH
DS
DH
CL
REF
= 4.096V (MAX1220/MAX1258), f
40/60 duty cycle
60/40 duty cycle
C
C
C
C
C
C
C
CKSEL = 01 (temp sense) or CKSEL =
10 (temp sense), internal reference on
(Note 18)
CKSEL = 01 (temp sense) or CKSEL =
10 (temp sense), internal reference
initially off
CKSEL = 01 (voltage conversion)
CKSEL = 10 (voltage conversion),
internal reference on (Note 18)
CKSEL = 10 (voltage conversion),
internal reference initially off
CKSEL = 00, CKSEL = 01 (temp sense)
CKSEL = 01 (voltage conversion)
DD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
= DV
= 20pF
= 20pF, SLOW = 0
= 20pF, SLOW = 1
= 20pF, SLOW = 0
= 20pF, SLOW = 1
= 20pF
= 20pF
DD
= 3V (MAX1257), AV
CONDITIONS
REF
= 2.5V (MAX1257), AV
CLK
DD
= 3.6MHz (50% duty cycle), T
= DV
DD
DD
MIN
= 4.75V to 5.25V, DV
= 5V (MAX1220/MAX1258), T
1.8
1.8
1.5
1.4
40
16
16
20
10
10
10
10
50
30
40
0
0
0
TYP
MAX
2000
A
12.0
12.0
25.0
100
140
DD
40
40
25
65
80
= -40°C to +85°C,
9
9
= 2.7V to AV
A
UNITS
= +25°C.
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
μs
ns
μs
DD
7