Datasheet
78K0/Kx2-L CHAPTER 28 ELECTRICAL SPECIFICATIONS
R01UH0028EJ0400 Rev.4.00 762
Sep 27, 2010
Caution The pins mounted depend on the product. Refer to Caution 2 at the beginning of this chapter.
(2) PGA
(T
A = −40 to +85°C, 2.7 V ≤ AVREF ≤ VDD ≤ 5.5 V, VSS = AVSS = 0 V)
Parameter Symbol Conditions MIN. TYP. MAX. Unit
Input offset voltage VIOPGA
±5 ±10 mV
Input voltage range VIPGA
0.1AVREF/
gain
0.9AVREF/
gain
V
Maximum output voltage VOPGA
0.1AVREF 0.9AVREF V
4, 8 times
±1 %
16 times
±1.5 %
Gain error
32 times
±2 %
4, 8 times
4 V/
μ
s
4.0 V ≤ AVREF
≤ 5.5 V
16, 32 times
1.5 V/
μ
s
4, 8 times
1.8 V/
μ
s
SRRPGA Rising
edge
2.7 V ≤ AV
REF
< 4.0 V
16, 32 times
0.5 V/
μ
s
4, 8 times
3.2 V/
μ
s 4.0 V ≤ AVREF
≤ 5.5 V
16, 32 times
1.5 V/
μ
s
4, 8 times
1.2 V/
μ
s
Slew rate
SR
FPGA Falling
edge
2.7 V ≤ AV
REF
< 4.0 V
16, 32 times
0.5 V/
μ
s
4, 8 times
5
μ
s Operation stabilization wait time
Note
tPGA
16, 32 times
10
μ
s
Note Time required until a state is entered where the DC and AC specifications of the PGA are satisfied after the PGA
operation has been enabled (PGAEN = 1).
(3) Operational amplifier 0
(T
A = −40 to +85°C, 2.2 V ≤ VDD ≤ 5.5 V, 2.2 V ≤ AVREF ≤ 5.5 V, VSS = AVSS = 0 V,
Output load: RL = 47 kΩ, CL = 50 pF)
Parameter Symbol Conditions MIN. TYP. MAX. Unit
Input offset voltage VIOP0 VBIAS = 1/2 VDD, AVREF = 3.0 V ±10 mV
Power supply voltage rejection ratio PSRROP0 AVREF = 3.0 V 70 dB
Output voltage, high VOHOP0 AVREF = 3.0 V/2.2 V,
I
OH = −500
μ
A
AV
REF−0.2 V
Output voltage, low VOLOP0 AVREF = 3.0 V/2.2 V,
I
OL = 500
μ
A
0.1 V
Common-mode input voltage VICMOP0 AVREF = 3.0 V/2.2 V 0 AVREF−0.6 V
AVREF = 3.0 V 1.8 V/
μ
s Slew rate SROP0
AV
REF = 5.0 V 2.0 V/
μ
s
AVREF = 3.0 V, VIN = 0.1 V, f = 1 kHz 73
AVREF = 3.0 V, VIN = AVREF/2 V, f = 1 kHz 60
Input noise spectral density (Inoise)
AV
REF = 3.0 V, VIN = AVREF −0.6 V,
f = 1 kHz
55
zH
/nV
Phase margin AVREF = 3.0 V 40 deg
Large-amplitude voltage gain AVOP0 AVREF = 3.0 V 100 dB
Gain-bandwidth product GBWOP0 AVREF = 5.0 V/3.0 V/2.2 V 3.0 MHz
Operation stabilization wait time
Note
tOP0 AVREF = 3.0 V 10
μ
s
Note Time required until a state is entered where the DC and AC specifications of the operational amplifier 0 are satisfied
after the operational amplifier 0 operation has been enabled (OPAMP0E = 1).