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Buffer Amplifier. TL32088 Datasheet

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Buffer Amplifier. TL32088 Datasheet






TL32088 Amplifier. Datasheet pdf. Equivalent




TL32088 Amplifier. Datasheet pdf. Equivalent





Part

TL32088

Description

Differential Analog Buffer Amplifier



Feature


TL32088 DIFFERENTIAL ANALOG BUFFER AMPLI FIER FOR THE TLC320AD58 SLAS123B – MA RCH 1995 – REVISED NOVEMBER 1995 D A nalog Front-End Integrated Circuit for the 18-Bit Stereo Audio Sigma-Delta Ana log-toDigital Converter TLC320AD58C D L ow Distortion, Low Noise – THD+N . . . 0.00056% Typ – SNR . . . 108-dB Typ D Adjustable Signal Gain D 5-V Single Supply Operation D Interna.
Manufacture

Texas Instruments

Datasheet
Download TL32088 Datasheet


Texas Instruments TL32088

TL32088; l Voltage Reference D Operating Temperat ure . . . 0°C to 70°C description NS PACKAGE (TOP VIEW) REF L1 1 AVSS 2 IN L+ 3 IN L– 4 OUT L 5 REF L 6 FLTL 1 7 FLTL 2 8 AOUT L1 9 AOUT L2 10 20 REF R1 19 IN R+ 18 IN R– 17 OUT R 16 REF R 15 FLTR 1 14 FLTR 2 13 AOUT R1 12 AO UT R2 11 AVCC The TL32088 is an analog signal conditioning integrated circuit built using a proprieta.


Texas Instruments TL32088

ry Texas Instruments bipolar process. Th is device is used for the analog signal input stage for the 18-bit, stereo aud io, sigma-delta, analog-to-digital AVA ILABLE OPTIONS PACKAGE TA SMALL OUTL INE (NS) converter (ADC) TLC320AD58C exclusively. The 0°C to 70°C TL3208 8CNS TL32088 can convert input signals from single-ended to differential and differential to si.


Texas Instruments TL32088

ngle-ended. The TL32088 also implements a single-ended to single-ended and diff erential to differential amplifier buf fer. The differential output can be con nected to the TLC320AD58C directly. The TLC32088 is composed of high performa nce amplifiers that offer wide output s wing with low distortion and low noise. The reference voltage for the interna l amplifier circui.

Part

TL32088

Description

Differential Analog Buffer Amplifier



Feature


TL32088 DIFFERENTIAL ANALOG BUFFER AMPLI FIER FOR THE TLC320AD58 SLAS123B – MA RCH 1995 – REVISED NOVEMBER 1995 D A nalog Front-End Integrated Circuit for the 18-Bit Stereo Audio Sigma-Delta Ana log-toDigital Converter TLC320AD58C D L ow Distortion, Low Noise – THD+N . . . 0.00056% Typ – SNR . . . 108-dB Typ D Adjustable Signal Gain D 5-V Single Supply Operation D Interna.
Manufacture

Texas Instruments

Datasheet
Download TL32088 Datasheet




 TL32088
TL32088
DIFFERENTIAL ANALOG BUFFER AMPLIFIER
FOR THE TLC320AD58
SLAS123B – MARCH 1995 – REVISED NOVEMBER 1995
D Analog Front-End Integrated Circuit for the
18-Bit Stereo Audio Sigma-Delta Analog-to-
Digital Converter TLC320AD58C
D Low Distortion, Low Noise
– THD+N . . . 0.00056% Typ
– SNR . . . 108-dB Typ
D Adjustable Signal Gain
D 5-V Single Supply Operation
D Internal Voltage Reference
D Operating Temperature . . . 0°C to 70°C
description
NS PACKAGE
(TOP VIEW)
REF L1 1
AVSS 2
IN L+ 3
IN L– 4
OUT L 5
REF L 6
FLTL 1 7
FLTL 2 8
AOUT L1 9
AOUT L2 10
20 REF R1
19 IN R+
18 IN R–
17 OUT R
16 REF R
15 FLTR 1
14 FLTR 2
13 AOUT R1
12 AOUT R2
11 AVCC
The TL32088 is an analog signal conditioning
integrated circuit built using a proprietary Texas
Instruments bipolar process. This device is used
for the analog signal input stage for the 18-bit,
stereo audio, sigma-delta, analog-to-digital
AVAILABLE OPTIONS
PACKAGE
TA
SMALL OUTLINE
(NS)
converter (ADC) TLC320AD58C exclusively. The
0°C to 70°C
TL32088CNS
TL32088 can convert input signals from
single-ended to differential and differential to
single-ended. The TL32088 also implements a single-ended to single-ended and differential to differential
amplifier buffer. The differential output can be connected to the TLC320AD58C directly. The TLC32088 is
composed of high performance amplifiers that offer wide output swing with low distortion and low noise. The
reference voltage for the internal amplifier circuit is provided from an internal voltage reference circuit.
The TL32088 provides a wide output swing while maintaining 0.00056% THD+N and 108-dB SNR and,
therefore, is ideally suited for high-end audio systems.
functional block diagram
IN R–
IN R+
REF R1
REF L1
IN L+
IN L–
OUT R REF R FLTR 1 FLTR 2
_
5 k
5 k
R1
+
_
R OUT
R2
+
R OUT
L OUT
+
L OUT
_L2
+
_L1
5 k
5 k
AOUT R1
AOUT R2
AOUT L2
AOUT L1
OUT L REF L FLTL 1 FLTL 2
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright © 1995, Texas Instruments Incorporated
1




 TL32088
TL32088
DIFFERENTIAL ANALOG BUFFER AMPLIFIER
FOR THE TLC320AD58
SLAS123B – MARCH 1995 – REVISED NOVEMBER 1995
absolute maximum rating over operating free-air temperature range (unless otherwise noted)
Supply voltage, AVCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Differential input voltage, VID (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AVCC
Input voltage range, VI (any input) (see Notes 1 and 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.3 to AVCC
Output voltage, VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.3 to AVCC
Output current, IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA
Duration of short-circuit current at or below 25°C (output shorted to GND) . . . . . . . . . . . . . . . . . . . . . unlimited
Continuous total power dissipation, PD (TA 25°C) (see Note 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 625 mW
Operating free-air temperature range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. All voltage values, except differential voltage, are with respect to GND.
2. Differential voltage is at the noninverting input with respect to the inverting input.
3. All input voltage values must not exceed VCC.
4. Derating factor above TA = 25°C is 10 mW/°C.
recommended operating conditions
MIN
Supply voltage, AVCC
4.75
Input voltage range, VI (see Note 5)
1.1
Operating free-air temperature, TA
0
NOTE 5: The output voltage is undetermined when the input voltage exceeds recommended input voltage range.
NOM
5
MAX
5.25
3.9
70
UNIT
V
V
°C
electrical characteristics over recommended operating free-air temperature range, VCC = 5 V
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNIT
VIO
Input offset voltage
VIC = 2.5 V,
VO = 2.5 V (AMP L1, R1)
TA = 25°C
TA = 0°C to 70°C
1
6
mV
7.5
IIO
Input offset current
VIC = 2.5 V,
VO = 2.5 V (AMP L1, R1)
TA = 25°C
TA = 0°C to 70°C
5 100
nA
150
IIB
Input bias current
VIC = 2.5 V,
VO = 2.5 V (AMP L1, R1)
TA = 25°C
TA = 0°C to 70°C
20 150
nA
250
VIC
Common-mode input voltage
VO 7.5 mV (AMP L1, R1)
TA = 25°C
0.9
TA = 0°C to 70°C 1.1
4.1
V
3.9
VOM+ Maximum positive-peak output voltage
4.4
V
VOM– Maximum negative-peak output voltage
0.6 V
Avd
Differential voltage amplification
VO = 2.5 V ± 1 V (AMP L1, R1) TA = 25°C
60
dB
CMRR Common-mode rejection ratio
VO = 2.5 V ± 1 V (AMP L1, R1) TA = 25°C
85
dB
Vref
Reference voltage
2.4 2.5 2.6 V
EG
Gain error
See Note 6
± 3%
ro
Output resistance
TA = 25°C
50
ICC
Supply current (both channels)
VO = 2.5 V, No load
TA = 25°C
TA = 0°C to 70°C
17
20
mA
25
NOTE 6: Gain error is between OUT L and FLTL 1, OUT R and FLTR 1.
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265




 TL32088
TL32088
DIFFERENTIAL ANALOG BUFFER AMPLIFIER
FOR THE TLC320AD58
SLAS123B – MARCH 1995 – REVISED NOVEMBER 1995
operating characteristics over recommended operating free-air temperature range, VCC = 5 V
(unless otherwise noted)
PARAMETER
SR
Slew rate
B1
SNR
Unity-gain bandwidth
Signal-to-noise ratio (EIAJ)
THD+N Total harmonic distortion plus noise
Crosstalk
TEST CONDITIONS
AV = 1,
VI = 2.5 V + 0.5 V (AMP L1, R1)
AMP L1, R1
A-Weighted test circuit (see Figure 2)
VO(PP) = 3.2 V f = 1 kHz,
BW = 10 Hz to 20 kHz test circuit
VO(PP) = 3.2 V, f = 20 kHz
MIN TYP
MAX UNIT
3
V/µs
7
104
108
MHz
dB
0.00056% 0.001%
– 125
dB
APPLICATION INFORMATION
AVCC
Analog
Input L
100
k
1 REF L1
TL32088
REF R1 20
2
AVSS
5 k
3 IN L+
+
4 IN L–
_
100 pF
10
k5 OUT L
6 REF L
10 µF
200 pF
7 FLTL 1
5 k
5 k
8 FLTL 2
_+
IN R+ 19
+
_
IN R– 18
OUT R 17
REF R 16
5 k
FLTR 1 15
+_
5 k
FLTR 2 14
5 k
10
100
k
pF
10 µF
200 pF
OUT L+
(INLP)†
OUT L–
(INLM)†
9 AOUT L1
10 AOUT L250
50
AOUT R1 13
50 AOUT R2 12
50
11
AVCC
Analog
Input R
100
k
OUT R+
(INRP)†
OUT R–
(INRM)†
TLC320AD58C input terminals.
Figure 1. TL32088 to TLC320AD58C Connections
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
3



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